Index: src/applications/auth/controller/PhabricatorEmailTokenController.php
===================================================================
--- src/applications/auth/controller/PhabricatorEmailTokenController.php
+++ src/applications/auth/controller/PhabricatorEmailTokenController.php
@@ -51,11 +51,12 @@
         'invalid or out of date. Make sure you are copy-and-pasting the '.
         'entire link into your browser. You can try again, or request '.
         'a new email.')));
-      $view->appendChild(hsprintf(
-        '<div class="aphront-failure-continue">'.
-          '<a class="button" href="/login/email/">%s</a>'.
-        '</div>',
-        pht('Send Another Email')));
+      $view->appendChild(phutil_tag_div(
+        'aphront-failure-continue',
+        phutil_tag(
+          'a',
+          array('class' => 'button', 'href' => '/login/email/'),
+          pht('Send Another Email'))));
 
       return $this->buildStandardPageResponse(
         $view,
Index: src/applications/auth/controller/PhabricatorMustVerifyEmailController.php
===================================================================
--- src/applications/auth/controller/PhabricatorMustVerifyEmailController.php
+++ src/applications/auth/controller/PhabricatorMustVerifyEmailController.php
@@ -48,8 +48,8 @@
     $error_view->appendChild(phutil_tag('p', array(), pht(
       'If you did not receive an email, you can click the button below '.
       'to try sending another one.')));
-    $error_view->appendChild(hsprintf(
-      '<div class="aphront-failure-continue">%s</div>',
+    $error_view->appendChild(phutil_tag_div(
+      'aphront-failure-continue',
       phabricator_form(
         $user,
         array(
Index: src/applications/auth/provider/PhabricatorAuthProviderLDAP.php
===================================================================
--- src/applications/auth/provider/PhabricatorAuthProviderLDAP.php
+++ src/applications/auth/provider/PhabricatorAuthProviderLDAP.php
@@ -254,18 +254,18 @@
     $captions = array(
       self::KEY_HOSTNAME =>
         pht('Example: %s',
-          hsprintf('<tt>%s</tt>', pht('ldap.example.com'))),
+          phutil_tag('tt', array(), pht('ldap.example.com'))),
       self::KEY_DISTINGUISHED_NAME =>
         pht('Example: %s',
-          hsprintf('<tt>%s</tt>', pht('ou=People, dc=example, dc=com'))),
+          phutil_tag('tt', array(), pht('ou=People, dc=example, dc=com'))),
       self::KEY_SEARCH_ATTRIBUTE =>
         pht('Example: %s',
-          hsprintf('<tt>%s</tt>', pht('sn'))),
+          phutil_tag('tt', array(), pht('sn'))),
       self::KEY_USERNAME_ATTRIBUTE =>
         pht('Optional, if different from search attribute.'),
       self::KEY_REALNAME_ATTRIBUTES =>
         pht('Optional. Example: %s',
-          hsprintf('<tt>%s</tt>', pht('firstname, lastname'))),
+          phutil_tag('tt', array(), pht('firstname, lastname'))),
       self::KEY_REFERRALS =>
         pht('Follow referrals. Disable this for Windows AD 2003.'),
       self::KEY_START_TLS =>
Index: src/applications/auth/provider/PhabricatorAuthProviderOAuthFacebook.php
===================================================================
--- src/applications/auth/provider/PhabricatorAuthProviderOAuthFacebook.php
+++ src/applications/auth/provider/PhabricatorAuthProviderOAuthFacebook.php
@@ -84,9 +84,7 @@
               "improves security by preventing an attacker from capturing ".
               "an insecure Facebook session and escalating it into a ".
               "Phabricator session. Enabling it is recommended.",
-              hsprintf(
-                '<strong>%s</strong>',
-                pht('Require Secure Browsing:')))));
+              phutil_tag('strong', array(), pht('Require Secure Browsing:')))));
   }
 
   public function renderConfigPropertyTransactionTitle(
Index: src/applications/base/controller/PhabricatorController.php
===================================================================
--- src/applications/base/controller/PhabricatorController.php
+++ src/applications/base/controller/PhabricatorController.php
@@ -246,8 +246,9 @@
         $view = new PhabricatorStandardPageView();
         $view->setRequest($request);
         $view->setController($this);
-        $view->appendChild(hsprintf(
-          '<div style="padding: 2em 0;">%s</div>',
+        $view->appendChild(phutil_tag(
+          'div',
+          array('style' => 'padding: 2em 0;'),
           $response->buildResponseString()));
         $page_response = new AphrontWebpageResponse();
         $page_response->setContent($view->render());
Index: src/applications/calendar/controller/PhabricatorCalendarBrowseController.php
===================================================================
--- src/applications/calendar/controller/PhabricatorCalendarBrowseController.php
+++ src/applications/calendar/controller/PhabricatorCalendarBrowseController.php
@@ -61,7 +61,7 @@
     $nav->appendChild(
       array(
         $this->getNoticeView(),
-        hsprintf('<div style="padding: 20px;">%s</div>', $month_view),
+        phutil_tag('div', array('style' => 'padding: 20px;'), $month_view),
       ));
 
     return $this->buildApplicationPage(
Index: src/applications/calendar/view/AphrontCalendarMonthView.php
===================================================================
--- src/applications/calendar/view/AphrontCalendarMonthView.php
+++ src/applications/calendar/view/AphrontCalendarMonthView.php
@@ -87,10 +87,9 @@
       } else {
         $show_events = array_fill_keys(
           array_keys($show_events),
-          hsprintf(
-            '<div class="aphront-calendar-event aphront-calendar-event-empty">'.
-              '&nbsp;'.
-            '</div>'));
+          phutil_tag_div(
+            'aphront-calendar-event aphront-calendar-event-empty',
+            "\xC2\xA0")); // &nbsp;
       }
 
       foreach ($events as $event) {
@@ -119,45 +118,49 @@
           $name);
       }
 
-      $markup[] = hsprintf(
-        '<div class="%s">'.
-          '<div class="aphront-calendar-date-number">%s</div>'.
-          '%s%s'.
-        '</div>',
+      $markup[] = phutil_tag_div(
         $class,
-        $day_number,
-        $holiday_markup,
-        phutil_implode_html("\n", $show_events));
+        array(
+          phutil_tag_div('aphront-calendar-date-number', $day_number),
+          $holiday_markup,
+          phutil_implode_html("\n", $show_events),
+        ));
     }
 
     $table = array();
     $rows = array_chunk($markup, 7);
     foreach ($rows as $row) {
-      $table[] = hsprintf('<tr>');
+      $cells = array();
       while (count($row) < 7) {
         $row[] = $empty_box;
       }
       foreach ($row as $cell) {
-        $table[] = phutil_tag('td', array(), $cell);
+        $cells[] = phutil_tag('td', array(), $cell);
       }
-      $table[] = hsprintf('</tr>');
+      $table[] = phutil_tag('tr', array(), $cells);
     }
-    $table = hsprintf(
-      '<table class="aphront-calendar-view">'.
-       '%s'.
-       '<tr class="aphront-calendar-day-of-week-header">'.
-          '<th>Sun</th>'.
-          '<th>Mon</th>'.
-          '<th>Tue</th>'.
-          '<th>Wed</th>'.
-          '<th>Thu</th>'.
-          '<th>Fri</th>'.
-          '<th>Sat</th>'.
-        '</tr>'.
-        '%s'.
-      '</table>',
-      $this->renderCalendarHeader($first),
-      phutil_implode_html("\n", $table));
+
+    $header = phutil_tag(
+      'tr',
+      array('class' => 'aphront-calendar-day-of-week-header'),
+      array(
+        phutil_tag('th', array(), pht('Sun')),
+        phutil_tag('th', array(), pht('Mon')),
+        phutil_tag('th', array(), pht('Tue')),
+        phutil_tag('th', array(), pht('Wed')),
+        phutil_tag('th', array(), pht('Thu')),
+        phutil_tag('th', array(), pht('Fri')),
+        phutil_tag('th', array(), pht('Sat')),
+      ));
+
+    $table = phutil_tag(
+      'table',
+      array('class' => 'aphront-calendar-view'),
+      array(
+        $this->renderCalendarHeader($first),
+        $header,
+        phutil_implode_html("\n", $table),
+      ));
 
     return $table;
   }
@@ -190,11 +193,14 @@
       $right_th = phutil_tag('th', array(), $next_link);
     }
 
-    return hsprintf(
-      '<tr class="aphront-calendar-month-year-header">%s%s%s</tr>',
-      $left_th,
-      phutil_tag('th', array('colspan' => $colspan), $date->format('F Y')),
-      $right_th);
+    return phutil_tag(
+      'tr',
+      array('class' => 'aphront-calendar-month-year-header'),
+      array(
+        $left_th,
+        phutil_tag('th', array('colspan' => $colspan), $date->format('F Y')),
+        $right_th,
+      ));
   }
 
   private function getNextYearAndMonth() {
Index: src/applications/conduit/controller/PhabricatorConduitAPIController.php
===================================================================
--- src/applications/conduit/controller/PhabricatorConduitAPIController.php
+++ src/applications/conduit/controller/PhabricatorConduitAPIController.php
@@ -423,7 +423,10 @@
       $value = $json->encodeFormatted($value);
     }
 
-    $value = hsprintf('<pre style="white-space: pre-wrap;">%s</pre>', $value);
+    $value = phutil_tag(
+      'pre',
+      array('style' => 'white-space: pre-wrap;'),
+      $value);
 
     return $value;
   }
Index: src/applications/conduit/query/PhabricatorConduitSearchEngine.php
===================================================================
--- src/applications/conduit/query/PhabricatorConduitSearchEngine.php
+++ src/applications/conduit/query/PhabricatorConduitSearchEngine.php
@@ -61,8 +61,9 @@
           ->setLabel('Applications')
           ->setName('applicationNames')
           ->setValue(implode(', ', $names))
-          ->setCaption(
-            pht('Example: %s', hsprintf('<tt>differential, paste</tt>'))));
+          ->setCaption(pht(
+            'Example: %s',
+            phutil_tag('tt', array(), 'differential, paste'))));
 
     $is_stable = $saved->getParameter('isStable');
     $is_unstable = $saved->getParameter('isUnstable');
Index: src/applications/config/controller/PhabricatorConfigEditController.php
===================================================================
--- src/applications/config/controller/PhabricatorConfigEditController.php
+++ src/applications/config/controller/PhabricatorConfigEditController.php
@@ -473,10 +473,10 @@
     }
 
     $table = array();
-    $table[] = hsprintf(
-      '<tr class="column-labels"><th>%s</th><th>%s</th></tr>',
-      pht('Example'),
-      pht('Value'));
+    $table[] = phutil_tag('tr', array('class' => 'column-labels'), array(
+      phutil_tag('th', array(), pht('Example')),
+      phutil_tag('th', array(), pht('Value')),
+    ));
     foreach ($examples as $example) {
       list($value, $description) = $example;
 
@@ -488,10 +488,10 @@
         }
       }
 
-      $table[] = hsprintf(
-        '<tr><th>%s</th><td>%s</td></tr>',
-        $description,
-        $value);
+      $table[] = phutil_tag('tr', array(), array(
+        phutil_tag('th', array(), $description),
+        phutil_tag('th', array(), $value),
+      ));
     }
 
     require_celerity_resource('config-options-css');
@@ -509,10 +509,10 @@
     $stack = $stack->getStack();
 
     $table = array();
-    $table[] = hsprintf(
-      '<tr class="column-labels"><th>%s</th><th>%s</th></tr>',
-      pht('Source'),
-      pht('Value'));
+    $table[] = phutil_tag('tr', array('class' => 'column-labels'), array(
+      phutil_tag('th', array(), pht('Source')),
+      phutil_tag('th', array(), pht('Value')),
+    ));
     foreach ($stack as $key => $source) {
       $value = $source->getKeys(
         array(
@@ -526,10 +526,10 @@
           $value[$option->getKey()]);
       }
 
-      $table[] = hsprintf(
-        '<tr><th>%s</th><td>%s</td></tr>',
-        $source->getName(),
-        $value);
+      $table[] = phutil_tag('tr', array('class' => 'column-labels'), array(
+        phutil_tag('th', array(), $source->getName()),
+        phutil_tag('td', array(), $value),
+      ));
     }
 
     require_celerity_resource('config-options-css');
Index: src/applications/conpherence/controller/ConpherenceNotificationPanelController.php
===================================================================
--- src/applications/conpherence/controller/ConpherenceNotificationPanelController.php
+++ src/applications/conpherence/controller/ConpherenceNotificationPanelController.php
@@ -72,8 +72,8 @@
       }
       $content = $view->render();
     } else {
-      $content = hsprintf(
-        '<div class="phabricator-notification no-notifications">%s</div>',
+      $content = phutil_tag_div(
+        'phabricator-notification no-notifications',
         pht('You have no messages.'));
     }
 
Index: src/applications/countdown/controller/PhabricatorCountdownDeleteController.php
===================================================================
--- src/applications/countdown/controller/PhabricatorCountdownDeleteController.php
+++ src/applications/countdown/controller/PhabricatorCountdownDeleteController.php
@@ -43,7 +43,7 @@
     $dialog = new AphrontDialogView();
     $dialog->setUser($request->getUser());
     $dialog->setTitle(pht('Really delete this countdown?'));
-    $dialog->appendChild(hsprintf('<p>%s</p>', $inst));
+    $dialog->appendChild(phutil_tag('p', array(), $inst));
     $dialog->addSubmitButton(pht('Delete'));
     $dialog->addCancelButton('/countdown/');
     $dialog->setSubmitURI($request->getPath());
Index: src/applications/countdown/view/PhabricatorCountdownView.php
===================================================================
--- src/applications/countdown/view/PhabricatorCountdownView.php
+++ src/applications/countdown/view/PhabricatorCountdownView.php
@@ -42,30 +42,31 @@
     }
 
 
-    $container = celerity_generate_unique_node_id();
-    $content = hsprintf(
-      '<div class="phabricator-timer" id="%s">
-        %s
-        <table class="phabricator-timer-table">
-          <tr>
-            <th>%s</th>
-            <th>%s</th>
-            <th>%s</th>
-            <th>%s</th>
-          </tr>
-          <tr>%s%s%s%s</tr>
-        </table>
-      </div>',
-      $container,
-      $header,
-      pht('Days'),
-      pht('Hours'),
-      pht('Minutes'),
-      pht('Seconds'),
+    $ths = array(
+      phutil_tag('th', array(), pht('Days')),
+      phutil_tag('th', array(), pht('Hours')),
+      phutil_tag('th', array(), pht('Minutes')),
+      phutil_tag('th', array(), pht('Seconds')),
+    );
+
+    $dashes = array(
       javelin_tag('td', array('sigil' => 'phabricator-timer-days'), '-'),
       javelin_tag('td', array('sigil' => 'phabricator-timer-hours'), '-'),
       javelin_tag('td', array('sigil' => 'phabricator-timer-minutes'), '-'),
-      javelin_tag('td', array('sigil' => 'phabricator-timer-seconds'), '-'));
+      javelin_tag('td', array('sigil' => 'phabricator-timer-seconds'), '-'),
+    );
+
+    $container = celerity_generate_unique_node_id();
+    $content = phutil_tag(
+      'div',
+      array('class' => 'phabricator-timer', 'id' => $container),
+      array(
+        $header,
+        phutil_tag('table', array('class' => 'phabricator-timer-table'), array(
+          phutil_tag('tr', array(), $ths),
+          phutil_tag('tr', array(), $dashes),
+        )),
+      ));
 
     Javelin::initBehavior('countdown-timer', array(
       'timestamp' => $countdown->getEpoch(),
Index: src/applications/differential/controller/DifferentialDiffViewController.php
===================================================================
--- src/applications/differential/controller/DifferentialDiffViewController.php
+++ src/applications/differential/controller/DifferentialDiffViewController.php
@@ -36,8 +36,9 @@
       // TODO: implement optgroup support in AphrontFormSelectControl?
       $select = array();
       $select[] = hsprintf('<optgroup label="%s">', pht('Create New Revision'));
-      $select[] = hsprintf(
-        '<option value="">%s</option>',
+      $select[] = phutil_tag(
+        'option',
+        array('value' => ''),
         pht('Create a new Revision...'));
       $select[] = hsprintf('</optgroup>');
 
Index: src/applications/differential/controller/DifferentialRevisionLandController.php
===================================================================
--- src/applications/differential/controller/DifferentialRevisionLandController.php
+++ src/applications/differential/controller/DifferentialRevisionLandController.php
@@ -49,7 +49,7 @@
             $ex->getMessage(),
             $ex->getPreviousException()->getMessage());
         } else {
-          $text = hsprintf('<pre>%s</pre>', $ex->getMessage());
+          $text = phutil_tag('pre', array(), $ex->getMessage());
         }
         $text = id(new AphrontErrorView())
            ->appendChild($text);
Index: src/applications/differential/render/DifferentialChangesetHTMLRenderer.php
===================================================================
--- src/applications/differential/render/DifferentialChangesetHTMLRenderer.php
+++ src/applications/differential/render/DifferentialChangesetHTMLRenderer.php
@@ -250,9 +250,7 @@
       }
     }
 
-    return hsprintf(
-      '<div class="differential-meta-notice">%s</div>',
-      $message);
+    return phutil_tag_div('differential-meta-notice', $message);
   }
 
   protected function renderPropertyChangeHeader() {
@@ -281,27 +279,21 @@
           $nval = phutil_escape_html_newlines($nval);
         }
 
-        $rows[] = hsprintf(
-          '<tr>'.
-            '<th>%s</th>'.
-            '<td class="oval">%s</td>'.
-            '<td class="nval">%s</td>'.
-          '</tr>',
-          $key,
-          $oval,
-          $nval);
+        $rows[] = phutil_tag('tr', array(), array(
+          phutil_tag('th', array(), $key),
+          phutil_tag('td', array('class' => 'oval'), $oval),
+          phutil_tag('td', array('class' => 'nval'), $nval),
+        ));
       }
     }
 
-    array_unshift($rows, hsprintf(
-      '<tr class="property-table-header">'.
-        '<th>%s</th>'.
-        '<td class="oval">%s</td>'.
-        '<td class="nval">%s</td>'.
-      '</tr>',
-      pht('Property Changes'),
-      pht('Old Value'),
-      pht('New Value')));
+    array_unshift(
+      $rows,
+      phutil_tag('tr', array('class' => 'property-table-header'), array(
+        phutil_tag('th', array(), pht('Property Changes')),
+        phutil_tag('td', array('class' => 'oval'), pht('Old Value')),
+        phutil_tag('td', array('class' => 'nval'), pht('New Value')),
+      )));
 
     return phutil_tag(
       'table',
Index: src/applications/differential/render/DifferentialChangesetOneUpRenderer.php
===================================================================
--- src/applications/differential/render/DifferentialChangesetOneUpRenderer.php
+++ src/applications/differential/render/DifferentialChangesetOneUpRenderer.php
@@ -27,19 +27,19 @@
             } else {
               $class = 'left';
             }
-            $out[] = hsprintf('<th>%s</th>', $p['line']);
-            $out[] = hsprintf('<th></th>');
-            $out[] = hsprintf('<td class="%s">%s</td>', $class, $p['render']);
+            $out[] = phutil_tag('th', array(), $p['line']);
+            $out[] = phutil_tag('th', array());
+            $out[] = phutil_tag('td', array('class' => $class), $p['render']);
           } else if ($type == 'new') {
             if ($p['htype']) {
               $class = 'right new';
-              $out[] = hsprintf('<th />');
+              $out[] = phutil_tag('th', array());
             } else {
               $class = 'right';
-              $out[] = hsprintf('<th>%s</th>', $p['oline']);
+              $out[] = phutil_tag('th', array(), $p['oline']);
             }
-            $out[] = hsprintf('<th>%s</th>', $p['line']);
-            $out[] = hsprintf('<td class="%s">%s</td>', $class, $p['render']);
+            $out[] = phutil_tag('th', array(), $p['line']);
+            $out[] = phutil_tag('td', array('class' => $class), $p['render']);
           }
           $out[] = hsprintf('</tr>');
           break;
Index: src/applications/differential/render/DifferentialChangesetTwoUpRenderer.php
===================================================================
--- src/applications/differential/render/DifferentialChangesetTwoUpRenderer.php
+++ src/applications/differential/render/DifferentialChangesetTwoUpRenderer.php
@@ -222,7 +222,7 @@
             $cov_class = $coverage[$n_num - 1];
           }
           $cov_class = 'cov-'.$cov_class;
-          $n_cov = hsprintf('<td class="cov %s"></td>', $cov_class);
+          $n_cov = phutil_tag('td', array('class' => "cov {$cov_class}"));
           $n_colspan--;
         }
 
@@ -240,7 +240,7 @@
           $n_classes = $n_class;
 
           if ($new_lines[$ii]['type'] == '\\' || !isset($copy_lines[$n_num])) {
-            $n_copy = hsprintf('<td class="copy %s"></td>', $n_class);
+            $n_copy = phutil_tag('td', array('class' => "copy {$n_class}"));
           } else {
             list($orig_file, $orig_line, $orig_type) = $copy_lines[$n_num];
             $title = ($orig_type == '-' ? 'Moved' : 'Copied').' from ';
@@ -283,29 +283,25 @@
         $n_id = null;
       }
 
+      // NOTE: This is a unicode zero-width space, which we use as a hint
+      // when intercepting 'copy' events to make sure sensible text ends
+      // up on the clipboard. See the 'phabricator-oncopy' behavior.
+      $zero_space = "\xE2\x80\x8B";
+
       // NOTE: The Javascript is sensitive to whitespace changes in this
       // block!
 
-      $html[] = hsprintf(
-        '<tr>'.
-          '%s'.
-          '<td class="%s">%s</td>'.
-          '%s'.
-          '%s'.
-          // NOTE: This is a unicode zero-width space, which we use as a hint
-          // when intercepting 'copy' events to make sure sensible text ends
-          // up on the clipboard. See the 'phabricator-oncopy' behavior.
-          '<td class="%s" colspan="%s">'.
-            "\xE2\x80\x8B%s".
-          '</td>'.
-          '%s'.
-        '</tr>',
+      $html[] = phutil_tag('tr', array(), array(
         phutil_tag('th', array('id' => $o_id), $o_num),
-        $o_classes, $o_text,
+        phutil_tag('td', array('class' => $o_classes), $o_text),
         phutil_tag('th', array('id' => $n_id), $n_num),
         $n_copy,
-        $n_classes, $n_colspan, $n_text,
-        $n_cov);
+        phutil_tag(
+          'td',
+          array('class' => $n_classes, 'colspan' => $n_colspan),
+          array($zero_space, $n_text)),
+        $n_cov,
+      ));
 
       if ($context_not_available && ($ii == $rows - 1)) {
         $html[] = $context_not_available;
@@ -328,29 +324,27 @@
               }
             }
           }
-          $html[] = hsprintf(
-            '<tr class="inline">'.
-              '<th />'.
-              '<td class="left">%s</td>'.
-              '<th />'.
-              '<td colspan="3" class="right3">%s</td>'.
-            '</tr>',
-            $comment_html,
-            $new);
+          $html[] = phutil_tag('tr', array('class' => 'inline'), array(
+            phutil_tag('th', array()),
+            phutil_tag('td', array('class' => 'left'), $comment_html),
+            phutil_tag('th', array()),
+            phutil_tag('td', array('colspan' => 3, 'class' => 'right3'), $new),
+          ));
         }
       }
       if ($n_num && isset($new_comments[$n_num])) {
         foreach ($new_comments[$n_num] as $comment) {
           $comment_html = $this->renderInlineComment($comment,
                                                      $on_right = true);
-          $html[] = hsprintf(
-            '<tr class="inline">'.
-              '<th />'.
-              '<td class="left" />'.
-              '<th />'.
-              '<td colspan="3" class="right3">%s</td>'.
-            '</tr>',
-            $comment_html);
+          $html[] = phutil_tag('tr', array('class' => 'inline'), array(
+            phutil_tag('th', array()),
+            phutil_tag('td', array('class' => 'left')),
+            phutil_tag('th', array()),
+            phutil_tag(
+              'td',
+              array('colspan' => 3, 'class' => 'right3'),
+              $comment_html),
+          ));
         }
       }
     }
@@ -395,40 +389,39 @@
     foreach ($this->getOldComments() as $on_line => $comment_group) {
       foreach ($comment_group as $comment) {
         $comment_html = $this->renderInlineComment($comment, $on_right = false);
-        $html_old[] = hsprintf(
-          '<tr class="inline">'.
-          '<th />'.
-          '<td class="left">%s</td>'.
-          '<th />'.
-          '<td class="right3" colspan="3" />'.
-          '</tr>',
-          $comment_html);
+        $html_old[] = phutil_tag('tr', array('class' => 'inline'), array(
+          phutil_tag('th', array()),
+          phutil_tag('td', array('class' => 'left'), $comment_html),
+          phutil_tag('th', array()),
+          phutil_tag('td', array('colspan' => 3, 'class' => 'right3')),
+        ));
       }
     }
     foreach ($this->getNewComments() as $lin_line => $comment_group) {
       foreach ($comment_group as $comment) {
         $comment_html = $this->renderInlineComment($comment, $on_right = true);
-        $html_new[] = hsprintf(
-          '<tr class="inline">'.
-          '<th />'.
-          '<td class="left" />'.
-          '<th />'.
-          '<td class="right3" colspan="3">%s</td>'.
-          '</tr>',
-          $comment_html);
+        $html_new[] = phutil_tag('tr', array('class' => 'inline'), array(
+          phutil_tag('th', array()),
+          phutil_tag('td', array('class' => 'left')),
+          phutil_tag('th', array()),
+          phutil_tag(
+            'td',
+            array('colspan' => 3, 'class' => 'right3'),
+            $comment_html),
+        ));
       }
     }
 
     if (!$old) {
-      $th_old = hsprintf('<th></th>');
+      $th_old = phutil_tag('th', array());
     } else {
-      $th_old = hsprintf('<th id="C%sOL1">1</th>', $vs);
+      $th_old = phutil_tag('th', array('id' => "C{$vs}OL1"), 1);
     }
 
     if (!$new) {
-      $th_new = hsprintf('<th></th>');
+      $th_new = phutil_tag('th', array());
     } else {
-      $th_new = hsprintf('<th id="C%sNL1">1</th>', $id);
+      $th_new = phutil_tag('th', array('id' => "C{$id}OL1"), 1);
     }
 
     $output = hsprintf(
Index: src/applications/differential/view/DifferentialAddCommentView.php
===================================================================
--- src/applications/differential/view/DifferentialAddCommentView.php
+++ src/applications/differential/view/DifferentialAddCommentView.php
@@ -181,16 +181,17 @@
 
     $warn = phutil_tag('div', array('id' => 'warnings'), $warning_container);
 
-    $preview = hsprintf(
-        '<div class="aphront-panel-preview aphront-panel-flush">'.
-          '<div id="comment-preview">'.
-            '<span class="aphront-panel-preview-loading-text">%s</span>'.
-          '</div>'.
-          '<div id="inline-comment-preview">'.
-          '</div>'.
-        '</div>',
+    $loading = phutil_tag(
+      'span',
+      array('class' => 'aphront-panel-preview-loading-text'),
       pht('Loading comment preview...'));
 
+    $preview = phutil_tag_div(
+      'aphront-panel-preview aphront-panel-flush',
+      array(
+        phutil_tag('div', array('id' => 'comment-preview'), $loading),
+        phutil_tag('div', array('id' => 'inline-comment-preview')),
+      ));
 
 
     $comment_box = id(new PHUIObjectBoxView())
Index: src/applications/differential/view/DifferentialChangesetListView.php
===================================================================
--- src/applications/differential/view/DifferentialChangesetListView.php
+++ src/applications/differential/view/DifferentialChangesetListView.php
@@ -246,19 +246,21 @@
       array('Changes discarded. ', $link));
 
     return array(
-      'l' => hsprintf(
-        '<table><tr>'.
-          '<th></th><td>%s</td>'.
-          '<th></th><td colspan="3"></td>'.
-        '</tr></table>',
-        $div),
-
-      'r' => hsprintf(
-        '<table><tr>'.
-          '<th></th><td></td>'.
-          '<th></th><td colspan="3">%s</td>'.
-        '</tr></table>',
-        $div),
+      'l' => phutil_tag('table', array(),
+        phutil_tag('tr', array(), array(
+          phutil_tag('th', array()),
+          phutil_tag('td', array(), $div),
+          phutil_tag('th', array()),
+          phutil_tag('td', array('colspan' => 3)),
+        ))),
+
+      'r' => phutil_tag('table', array(),
+        phutil_tag('tr', array(), array(
+          phutil_tag('th', array()),
+          phutil_tag('td', array()),
+          phutil_tag('th', array()),
+          phutil_tag('td', array('colspan' => 3), $div),
+        ))),
     );
   }
 
Index: src/applications/differential/view/DifferentialDiffTableOfContentsView.php
===================================================================
--- src/applications/differential/view/DifferentialDiffTableOfContentsView.php
+++ src/applications/differential/view/DifferentialDiffTableOfContentsView.php
@@ -136,7 +136,8 @@
       $pchar =
         ($changeset->getOldProperties() === $changeset->getNewProperties())
           ? null
-          : hsprintf('<span title="%s">M</span>', pht('Properties Changed'));
+          : phutil_tag('span', array('title' => pht('Properties Changed')), 'M')
+        ;
 
       $fname = $changeset->getFilename();
       $cov  = $this->renderCoverage($coverage, $fname);
@@ -152,28 +153,25 @@
           (isset($this->visibleChangesets[$id]) ? 'Loading...' : '?'));
       }
 
-      $rows[] = hsprintf(
-          '<tr>'.
-            '<td class="differential-toc-char" title="%s">%s</td>'.
-            '<td class="differential-toc-prop">%s</td>'.
-            '<td class="differential-toc-ftype">%s</td>'.
-            '<td class="differential-toc-file">%s%s</td>'.
-            '<td class="differential-toc-cov">%s</td>'.
-            '<td class="differential-toc-mcov">%s</td>'.
-          '</tr>',
-          $chartitle, $char,
-          $pchar,
-          $desc,
-          $link, $lines,
-          $cov,
-          $mcov);
+      $rows[] = phutil_tag('tr', array(), array(
+        phutil_tag(
+          'td',
+          array('class' => 'differential-toc-char', 'title' => $chartitle),
+          $char),
+        phutil_tag('td', array('class' => 'differential-toc-prop'), $pchar),
+        phutil_tag('td', array('class' => 'differential-toc-ftype'), $desc),
+        phutil_tag(
+          'td',
+          array('class' => 'differential-toc-file'),
+          array($link, $lines)),
+        phutil_tag('td', array('class' => 'differential-toc-cov'), $cov),
+        phutil_tag('td', array('class' => 'differential-toc-mcov'), $mcov),
+      ));
       if ($meta) {
-        $rows[] = hsprintf(
-          '<tr>'.
-            '<td colspan="3"></td>'.
-            '<td class="differential-toc-meta">%s</td>'.
-          '</tr>',
-          $meta);
+        $rows[] = phutil_tag('tr', array(), array(
+          phutil_tag('td', array('colspan' => 3)),
+          phutil_tag('td', array('class' => 'differential-toc-meta'), $meta),
+        ));
       }
       if ($this->diff && $this->repository) {
         $paths[] =
@@ -208,10 +206,9 @@
         ),
         pht('Show All Context'));
 
-    $buttons = hsprintf(
-      '<tr><td colspan="7">%s%s</td></tr>',
-      $editor_link,
-      $reveal_link);
+    $buttons = phutil_tag('tr', array(),
+      phutil_tag('td', array('colspan' => 7),
+        array($editor_link, $reveal_link)));
 
     $content = hsprintf(
       '%s'.
Index: src/applications/differential/view/DifferentialInlineCommentEditView.php
===================================================================
--- src/applications/differential/view/DifferentialInlineCommentEditView.php
+++ src/applications/differential/view/DifferentialInlineCommentEditView.php
@@ -60,17 +60,21 @@
         $this->renderBody(),
       ));
 
-    return hsprintf(
-      '<table>'.
-        '<tr class="inline-comment-splint">'.
-          '<th></th>'.
-          '<td class="left">%s</td>'.
-          '<th></th>'.
-          '<td colspan="3" class="right3">%s</td>'.
-        '</tr>'.
-      '</table>',
-      $this->onRight ? null : $content,
-      $this->onRight ? $content : null);
+    return phutil_tag('table', array(), phutil_tag(
+      'tr',
+      array('class' => 'inline-comment-splint'),
+      array(
+        phutil_tag('th', array()),
+        phutil_tag(
+          'td',
+          array('class' => 'left'),
+          $this->onRight ? null : $content),
+        phutil_tag('th', array()),
+        phutil_tag(
+          'td',
+          array('colspan' => 3, 'class' => 'right3'),
+          $this->onRight ? $content : null),
+      )));
   }
 
   private function renderInputs() {
Index: src/applications/differential/view/DifferentialInlineCommentView.php
===================================================================
--- src/applications/differential/view/DifferentialInlineCommentView.php
+++ src/applications/differential/view/DifferentialInlineCommentView.php
@@ -217,6 +217,11 @@
       $author = $handles[$inline->getAuthorPHID()]->getName();
     }
 
+    $line = phutil_tag(
+      'span',
+      array('class' => 'differential-inline-comment-line'),
+      $line);
+
     $markup = javelin_tag(
       'div',
       array(
@@ -224,18 +229,19 @@
         'sigil' => $sigil,
         'meta'  => $metadata,
       ),
-      hsprintf(
-        '<div class="differential-inline-comment-head">'.
-          '%s%s <span class="differential-inline-comment-line">%s</span> %s'.
-        '</div>'.
-        '<div class="differential-inline-comment-content">'.
-          '<div class="phabricator-remarkup">%s</div>'.
-        '</div>',
-        $anchor,
-        $links,
-        $line,
-        $author,
-        $content));
+      array(
+        phutil_tag_div('differential-inline-comment-head', array(
+          $anchor,
+          $links,
+          ' ',
+          $line,
+          ' ',
+          $author,
+        )),
+        phutil_tag_div(
+          'differential-inline-comment-content',
+          phutil_tag_div('phabricator-remarkup', $content)),
+      ));
 
     return $this->scaffoldMarkup($markup);
   }
@@ -248,17 +254,16 @@
     $left_markup = !$this->onRight ? $markup : '';
     $right_markup = $this->onRight ? $markup : '';
 
-    return hsprintf(
-      '<table>'.
-        '<tr class="inline">'.
-          '<th></th>'.
-          '<td class="left">%s</td>'.
-          '<th></th>'.
-          '<td class="right3" colspan="3">%s</td>'.
-        '</tr>'.
-      '</table>',
-      $left_markup,
-      $right_markup);
+    return phutil_tag('table', array(),
+      phutil_tag('tr', array(), array(
+        phutil_tag('th', array()),
+        phutil_tag('td', array('class' => 'left'), $left_markup),
+        phutil_tag('th', array()),
+        phutil_tag(
+          'td',
+          array('colspan' => 3, 'class' => 'right3'),
+          $right_markup),
+      )));
   }
 
 }
Index: src/applications/differential/view/DifferentialLocalCommitsView.php
===================================================================
--- src/applications/differential/view/DifferentialLocalCommitsView.php
+++ src/applications/differential/view/DifferentialLocalCommitsView.php
@@ -128,12 +128,10 @@
 
     $headers = phutil_tag('tr', array(), $headers);
 
-    $content = hsprintf(
-      '<div class="differential-panel">'.
-        '<table class="differential-local-commits-table">%s%s</table>'.
-      '</div>',
-      $headers,
-      phutil_implode_html("\n", $rows));
+    $content = phutil_tag_div('differential-panel', phutil_tag(
+      'table',
+      array('class' => 'differential-local-commits-table'),
+      array($headers, phutil_implode_html("\n", $rows))));
 
     return id(new PHUIObjectBoxView())
       ->setHeaderText(pht('Local Commits'))
Index: src/applications/differential/view/DifferentialRevisionCommentView.php
===================================================================
--- src/applications/differential/view/DifferentialRevisionCommentView.php
+++ src/applications/differential/view/DifferentialRevisionCommentView.php
@@ -87,9 +87,7 @@
         $comment,
         PhabricatorInlineCommentInterface::MARKUP_FIELD_BODY);
 
-      $content = hsprintf(
-        '<div class="phabricator-remarkup">%s</div>',
-        $content);
+      $content = phutil_tag_div('phabricator-remarkup', $content);
     }
 
     $inline_render = $this->renderInlineComments();
@@ -207,10 +205,9 @@
     }
 
     if (!$hide_comments) {
-      $xaction_view->appendChild(hsprintf(
-        '<div class="differential-comment-core">%s%s</div>',
-        $content,
-        $inline_render));
+      $xaction_view->appendChild(phutil_tag_div(
+        'differential-comment-core',
+        array($content, $inline_render)));
     }
 
     return $xaction_view->render();
Index: src/applications/differential/view/DifferentialRevisionUpdateHistoryView.php
===================================================================
--- src/applications/differential/view/DifferentialRevisionUpdateHistoryView.php
+++ src/applications/differential/view/DifferentialRevisionUpdateHistoryView.php
@@ -200,23 +200,25 @@
       phutil_tag('th', array(), pht('Unit')),
     )));
 
-    $content = hsprintf(
-      '<div class="differential-revision-history differential-panel">'.
-        '<form action="#toc">'.
-          '<table class="differential-revision-history-table">'.
-            '%s'.
-            '<tr>'.
-              '<td colspan="9" class="diff-differ-submit">'.
-                '<label>%s</label>'.
-                '<button>%s</button>'.
-              '</td>'.
-            '</tr>'.
-          '</table>'.
-        '</form>'.
-      '</div>',
-      phutil_implode_html("\n", $rows),
-      pht('Whitespace Changes: %s', $select),
-      pht('Show Diff'));
+    $label = pht('Whitespace Changes: %s', $select);
+
+    $content = phutil_tag_div(
+      'differential-revision-history differential-panel',
+      phutil_tag(
+        'form',
+        array('action' => '#toc'),
+        phutil_tag(
+          'table',
+          array('class' => 'differential-revision-history-table'), array(
+            phutil_implode_html("\n", $rows),
+            phutil_tag('tr', array(), phutil_tag(
+              'td',
+              array('colspan' => 9, 'class' => 'diff-differ-submit'),
+              array(
+                phutil_tag('label', array(), $label),
+                phutil_tag('button', array(), pht('Show Diff')),
+              )))
+          ))));
 
     return id(new PHUIObjectBoxView())
       ->setHeaderText(pht('Revision Update History'))
Index: src/applications/diffusion/controller/DiffusionCommitController.php
===================================================================
--- src/applications/diffusion/controller/DiffusionCommitController.php
+++ src/applications/diffusion/controller/DiffusionCommitController.php
@@ -744,21 +744,26 @@
       'inlineuri'  => '/diffusion/inline/preview/'.$commit->getPHID().'/',
     ));
 
-    $preview_panel = hsprintf(
-      '<div class="aphront-panel-preview aphront-panel-flush">
-        <div id="audit-preview">
-          <div class="aphront-panel-preview-loading-text">
-            Loading preview...
-          </div>
-        </div>
-        <div id="inline-comment-preview">
-        </div>
-      </div>');
+    $loading = phutil_tag_div(
+      'aphront-panel-preview-loading-text',
+      pht('Loading preview...'));
+
+    $preview_panel = phutil_tag_div(
+      'aphront-panel-preview aphront-panel-flush',
+      array(
+        phutil_tag('div', array('id' => 'audit-preview'), $loading),
+        phutil_tag('div', array('id' => 'inline-comment-preview'))
+      ));
 
     // TODO: This is pretty awkward, unify the CSS between Diffusion and
     // Differential better.
     require_celerity_resource('differential-core-view-css');
 
+    $anchor = id(new PhabricatorAnchorView())
+      ->setAnchorName('comment')
+      ->setNavigationMarker(true)
+      ->render();
+
     $comment_box = id(new PHUIObjectBoxView())
       ->setHeader($header)
       ->appendChild($form);
@@ -768,14 +773,9 @@
       array(
         'id' => $pane_id,
       ),
-      hsprintf(
-        '<div class="differential-add-comment-panel">%s%s%s</div>',
-        id(new PhabricatorAnchorView())
-          ->setAnchorName('comment')
-          ->setNavigationMarker(true)
-          ->render(),
-        $comment_box,
-        $preview_panel));
+      phutil_tag_div(
+        'differential-add-comment-panel',
+        array($anchor, $comment_box, $preview_panel)));
   }
 
   /**
Index: src/applications/diffusion/controller/DiffusionLintController.php
===================================================================
--- src/applications/diffusion/controller/DiffusionLintController.php
+++ src/applications/diffusion/controller/DiffusionLintController.php
@@ -69,25 +69,20 @@
 
       $total += $code['n'];
 
+      $href_lint = $drequest->generateURI(array(
+        'action' => 'lint',
+        'lint' => $code['code'],
+      ));
+      $href_browse = $drequest->generateURI(array(
+        'action' => 'browse',
+        'lint' => $code['code'],
+      ));
+      $href_repo = $drequest->generateURI(array('action' => 'lint'));
+
       $rows[] = array(
-        hsprintf(
-          '<a href="%s">%s</a>',
-          $drequest->generateURI(array(
-            'action' => 'lint',
-            'lint' => $code['code'],
-          )),
-          $code['n']),
-        hsprintf(
-          '<a href="%s">%s</a>',
-          $drequest->generateURI(array(
-            'action' => 'browse',
-            'lint' => $code['code'],
-          )),
-          $code['files']),
-        hsprintf(
-          '<a href="%s">%s</a>',
-          $drequest->generateURI(array('action' => 'lint')),
-          $drequest->getCallsign()),
+        phutil_tag('a', array('href' => $href_lint), $code['n']),
+        phutil_tag('a', array('href' => $href_browse), $code['files']),
+        phutil_tag('a', array('href' => $href_repo), $drequest->getCallsign()),
         ArcanistLintSeverity::getStringForSeverity($code['maxSeverity']),
         $code['code'],
         $code['maxName'],
Index: src/applications/diffusion/controller/DiffusionLintDetailsController.php
===================================================================
--- src/applications/diffusion/controller/DiffusionLintDetailsController.php
+++ src/applications/diffusion/controller/DiffusionLintDetailsController.php
@@ -15,22 +15,22 @@
 
     $rows = array();
     foreach ($messages as $message) {
-      $path = hsprintf(
-        '<a href="%s">%s</a>',
-        $drequest->generateURI(array(
+      $path = phutil_tag(
+        'a',
+        array('href' => $drequest->generateURI(array(
           'action' => 'lint',
           'path' => $message['path'],
-        )),
+        ))),
         substr($message['path'], strlen($drequest->getPath()) + 1));
 
-      $line = hsprintf(
-        '<a href="%s">%s</a>',
-        $drequest->generateURI(array(
+      $line = phutil_tag(
+        'a',
+        array('href' => $drequest->generateURI(array(
           'action' => 'browse',
           'path' => $message['path'],
           'line' => $message['line'],
           'commit' => $branch->getLintCommit(),
-        )),
+        ))),
         $message['line']);
 
       $author = $message['authorPHID'];
Index: src/applications/diffusion/view/DiffusionBrowseTableView.php
===================================================================
--- src/applications/diffusion/view/DiffusionBrowseTableView.php
+++ src/applications/diffusion/view/DiffusionBrowseTableView.php
@@ -74,12 +74,12 @@
 
     $lint = self::loadLintMessagesCount($drequest);
     if ($lint !== null) {
-      $return['lint'] = hsprintf(
-        '<a href="%s">%s</a>',
-        $drequest->generateURI(array(
+      $return['lint'] = phutil_tag(
+        'a',
+        array('href' => $drequest->generateURI(array(
           'action' => 'lint',
           'lint' => null,
-        )),
+        ))),
         number_format($lint));
     }
 
Index: src/applications/diffusion/view/DiffusionCommentView.php
===================================================================
--- src/applications/diffusion/view/DiffusionCommentView.php
+++ src/applications/diffusion/view/DiffusionCommentView.php
@@ -139,12 +139,12 @@
     if (!strlen($comment->getContent()) && empty($this->inlineComments)) {
       return null;
     } else {
-      return hsprintf(
-        '<div class="phabricator-remarkup">%s%s</div>',
+      return phutil_tag_div('phabricator-remarkup', array(
         $engine->getOutput(
           $comment,
           PhabricatorAuditComment::MARKUP_FIELD_BODY),
-        $this->renderInlines());
+        $this->renderInlines(),
+      ));
     }
   }
 
Index: src/applications/feed/builder/PhabricatorFeedBuilder.php
===================================================================
--- src/applications/feed/builder/PhabricatorFeedBuilder.php
+++ src/applications/feed/builder/PhabricatorFeedBuilder.php
@@ -47,8 +47,8 @@
 
       if ($date !== $last_date) {
         if ($last_date !== null) {
-          $null_view->appendChild(hsprintf(
-            '<div class="phabricator-feed-story-date-separator"></div>'));
+          $null_view->appendChild(
+            phutil_tag_div('phabricator-feed-story-date-separator'));
         }
         $last_date = $date;
         $header = new PhabricatorActionHeaderView();
Index: src/applications/feed/controller/PhabricatorFeedDetailController.php
===================================================================
--- src/applications/feed/controller/PhabricatorFeedDetailController.php
+++ src/applications/feed/controller/PhabricatorFeedDetailController.php
@@ -27,9 +27,7 @@
 
     $title = pht('Story');
 
-    $feed_view = hsprintf(
-      '<div class="phabricator-feed-frame">%s</div>',
-      $feed_view);
+    $feed_view = phutil_tag_div('phabricator-feed-frame', $feed_view);
 
     $crumbs = $this->buildApplicationCrumbs();
     $crumbs->addCrumb(
Index: src/applications/feed/controller/PhabricatorFeedListController.php
===================================================================
--- src/applications/feed/controller/PhabricatorFeedListController.php
+++ src/applications/feed/controller/PhabricatorFeedListController.php
@@ -32,9 +32,7 @@
     $builder->setUser($this->getRequest()->getUser());
     $view = $builder->buildView();
 
-    return hsprintf(
-      '<div class="phabricator-feed-frame">%s</div>',
-      $view);
+    return phutil_tag_div('phabricator-feed-frame', $view);
   }
 
 }
Index: src/applications/feed/controller/PhabricatorFeedPublicStreamController.php
===================================================================
--- src/applications/feed/controller/PhabricatorFeedPublicStreamController.php
+++ src/applications/feed/controller/PhabricatorFeedPublicStreamController.php
@@ -25,7 +25,8 @@
       ->setFramed(true)
       ->setUser($viewer);
 
-    $view = hsprintf('<div class="phabricator-public-feed-frame">%s</div>',
+    $view = phutil_tag_div(
+      'phabricator-public-feed-frame',
       $builder->buildView());
 
     return $this->buildStandardPageResponse(
Index: src/applications/feed/story/PhabricatorFeedStoryCommit.php
===================================================================
--- src/applications/feed/story/PhabricatorFeedStoryCommit.php
+++ src/applications/feed/story/PhabricatorFeedStoryCommit.php
@@ -37,13 +37,13 @@
     }
 
     if ($author) {
-      $title = hsprintf(
+      $title = pht(
         "%s committed %s (authored by %s)",
         $committer,
         $commit,
         $author);
     } else {
-      $title = hsprintf(
+      $title = pht(
         "%s committed %s",
         $committer,
         $commit);
Index: src/applications/harbormaster/view/ShellLogView.php
===================================================================
--- src/applications/harbormaster/view/ShellLogView.php
+++ src/applications/harbormaster/view/ShellLogView.php
@@ -61,15 +61,23 @@
 
       // TODO: Provide nice links.
 
+      $th = phutil_tag(
+        'th',
+        array(
+          'class' => 'phabricator-source-line',
+          'style' => 'background-color: #fff;',
+        ),
+        $content_number);
+
+      $td = phutil_tag(
+        'td',
+        array('class' => 'phabricator-source-code'),
+        $content_line);
+
       $rows[] = phutil_tag(
         'tr',
         $row_attributes,
-        hsprintf(
-          '<th class="phabricator-source-line" '.
-          'style="background-color: #fff;">%s</th>'.
-          '<td class="phabricator-source-code">%s</td>',
-          $content_number,
-          $content_line));
+        array($th, $td));
 
       if ($hit_limit) {
         break;
Index: src/applications/herald/controller/HeraldTestConsoleController.php
===================================================================
--- src/applications/herald/controller/HeraldTestConsoleController.php
+++ src/applications/herald/controller/HeraldTestConsoleController.php
@@ -94,8 +94,8 @@
 
     $form = id(new AphrontFormView())
       ->setUser($user)
-      ->appendChild(hsprintf(
-        '<p class="aphront-form-instructions">%s</p>', $text))
+      ->appendChild(
+        phutil_tag('p', array('class' => 'aphront-form-instructions'), $text))
       ->appendChild(
         id(new AphrontFormTextControl())
           ->setLabel(pht('Object Name'))
Index: src/applications/herald/controller/HeraldTranscriptController.php
===================================================================
--- src/applications/herald/controller/HeraldTranscriptController.php
+++ src/applications/herald/controller/HeraldTranscriptController.php
@@ -133,7 +133,7 @@
       $value = implode(', ', $value);
     }
 
-    return hsprintf('<span class="condition-test-value">%s</span>', $value);
+    return phutil_tag('span', array('class' => 'condition-test-value'), $value);
   }
 
   private function buildSideNav() {
@@ -306,13 +306,15 @@
       }
 
       if ($apply_xscript->getApplied()) {
-        $success = pht('SUCCESS');
-        $outcome =
-          hsprintf('<span class="outcome-success">%s</span>', $success);
+        $outcome = phutil_tag(
+          'span',
+          array('class' => 'outcome-success'),
+          pht('SUCCESS'));
       } else {
-        $failure = pht('FAILURE');
-        $outcome =
-          hsprintf('<span class="outcome-failure">%s</span>', $failure);
+        $outcome = phutil_tag(
+          'span',
+          array('class' => 'outcome-failure'),
+          pht('FAILURE'));
       }
 
       $rows[] = array(
@@ -366,23 +368,21 @@
       $cond_markup = array();
       foreach ($xscript->getConditionTranscriptsForRule($rule_id) as $cond) {
         if ($cond->getNote()) {
-          $note = hsprintf(
-            '<div class="herald-condition-note">%s</div>',
-            $cond->getNote());
+          $note = phutil_tag_div('herald-condition-note', $cond->getNote());
         } else {
           $note = null;
         }
 
         if ($cond->getResult()) {
-          $result = hsprintf(
-            '<span class="herald-outcome condition-pass">'.
-              "\xE2\x9C\x93".
-            '</span>');
+          $result = phutil_tag(
+            'span',
+            array('class' => 'herald-outcome condition-pass'),
+            "\xE2\x9C\x93");
         } else {
-          $result = hsprintf(
-            '<span class="herald-outcome condition-fail">'.
-              "\xE2\x9C\x98".
-            '</span>');
+          $result = phutil_tag(
+            'span',
+            array('class' => 'herald-outcome condition-fail'),
+            "\xE2\x9C\x98");
         }
 
         $cond_markup[] = phutil_tag(
@@ -398,18 +398,23 @@
       }
 
       if ($rule->getResult()) {
-        $pass = pht('PASS');
-        $result = hsprintf(
-          '<span class="herald-outcome rule-pass">%s</span>', $pass);
+        $result = phutil_tag(
+          'span',
+          array('class' => 'herald-outcome rule-pass'),
+          pht('PASS'));
         $class = 'herald-rule-pass';
       } else {
-        $fail = pht('FAIL');
-        $result = hsprintf(
-          '<span class="herald-outcome rule-fail">%s</span>', $fail);
+        $result = phutil_tag(
+          'span',
+          array('class' => 'herald-outcome rule-fail'),
+          pht('FAIL'));
         $class = 'herald-rule-fail';
       }
 
-      $cond_markup[] = hsprintf('<li>%s %s</li>', $result, $rule->getReason());
+      $cond_markup[] = phutil_tag(
+        'li',
+        array(),
+        array($result, $rule->getReason()));
       $user_phid = $this->getRequest()->getUser()->getPHID();
 
       $name = $rule->getRuleName();
@@ -420,11 +425,11 @@
           array(
             'class' => $class,
           ),
-          hsprintf(
-            '<div class="rule-name"><strong>%s</strong> %s</div>%s',
-            $name,
-            $handles[$rule->getRuleOwner()]->getName(),
-            phutil_tag('ul', array(), $cond_markup)));
+          phutil_tag_div('rule-name', array(
+            phutil_tag('strong', array(), $name),
+            ' ',
+            phutil_tag('ul', array(), $cond_markup),
+          )));
     }
 
     $panel = '';
Index: src/applications/maniphest/controller/ManiphestReportController.php
===================================================================
--- src/applications/maniphest/controller/ManiphestReportController.php
+++ src/applications/maniphest/controller/ManiphestReportController.php
@@ -252,7 +252,7 @@
         "of this project in the past but no longer is, it is not ".
         "counted at all.");
       $header = pht("Task Burn Rate for Project %s", $handle->renderLink());
-      $caption = hsprintf("<p>%s</p>", $inst);
+      $caption = phutil_tag('p', array(), $inst);
     } else {
       $header = pht("Task Burn Rate for All Tasks");
       $caption = null;
@@ -362,9 +362,9 @@
     $fmt = number_format($delta);
     if ($delta > 0) {
       $fmt = '+'.$fmt;
-      $fmt = hsprintf('<span class="red">%s</span>', $fmt);
+      $fmt = phutil_tag('span', array('class' => 'red'), $fmt);
     } else {
-      $fmt = hsprintf('<span class="green">%s</span>', $fmt);
+      $fmt = phutil_tag('span', array('class' => 'green'), $fmt);
     }
 
     return array(
Index: src/applications/maniphest/controller/ManiphestTaskDescriptionPreviewController.php
===================================================================
--- src/applications/maniphest/controller/ManiphestTaskDescriptionPreviewController.php
+++ src/applications/maniphest/controller/ManiphestTaskDescriptionPreviewController.php
@@ -18,9 +18,7 @@
       ManiphestTask::MARKUP_FIELD_DESCRIPTION,
       $request->getUser());
 
-    $content = hsprintf(
-      '<div class="phabricator-remarkup">%s</div>',
-      $output);
+    $content = phutil_tag_div('phabricator-remarkup', $output);
 
     return id(new AphrontAjaxResponse())
       ->setContent($content);
Index: src/applications/maniphest/controller/ManiphestTaskDetailController.php
===================================================================
--- src/applications/maniphest/controller/ManiphestTaskDetailController.php
+++ src/applications/maniphest/controller/ManiphestTaskDetailController.php
@@ -348,13 +348,14 @@
     $comment_header = id(new PHUIHeaderView())
       ->setHeader($is_serious ? pht('Add Comment') : pht('Weigh In'));
 
-    $preview_panel = hsprintf(
-      '<div class="aphront-panel-preview">
-        <div id="transaction-preview">
-          <div class="aphront-panel-preview-loading-text">%s</div>
-        </div>
-      </div>',
-      pht('Loading preview...'));
+    $preview_panel = phutil_tag_div(
+      'aphront-panel-preview',
+      phutil_tag(
+        'div',
+        array('id' => 'transaction-preview'),
+        phutil_tag_div(
+          'aphront-panel-preview-loading-text',
+          pht('Loading preview...'))));
 
     $timeline = id(new PhabricatorApplicationTransactionView())
       ->setUser($user)
Index: src/applications/notification/controller/PhabricatorNotificationListController.php
===================================================================
--- src/applications/notification/controller/PhabricatorNotificationListController.php
+++ src/applications/notification/controller/PhabricatorNotificationListController.php
@@ -45,14 +45,12 @@
       $builder = new PhabricatorNotificationBuilder($notifications);
       $view = $builder->buildView()->render();
     } else {
-      $view = hsprintf(
-        '<div class="phabricator-notification no-notifications">%s</div>',
+      $view = phutil_tag_div(
+        'phabricator-notification no-notifications',
         $no_data);
     }
 
-    $view = hsprintf(
-      '<div class="phabricator-notification-list">%s</div>',
-      $view);
+    $view = phutil_tag_div('phabricator-notification-list', $view);
 
     $panel = new AphrontPanelView();
     $panel->setHeader($header);
Index: src/applications/notification/controller/PhabricatorNotificationPanelController.php
===================================================================
--- src/applications/notification/controller/PhabricatorNotificationPanelController.php
+++ src/applications/notification/controller/PhabricatorNotificationPanelController.php
@@ -20,8 +20,8 @@
       $notifications_view = $builder->buildView();
       $content = $notifications_view->render();
     } else {
-      $content = hsprintf(
-        '<div class="phabricator-notification no-notifications">%s</div>',
+      $content = phutil_tag_div(
+        'phabricator-notification no-notifications',
         pht('You have no notifications.'));
     }
 
Index: src/applications/owners/controller/PhabricatorOwnersDeleteController.php
===================================================================
--- src/applications/owners/controller/PhabricatorOwnersDeleteController.php
+++ src/applications/owners/controller/PhabricatorOwnersDeleteController.php
@@ -29,9 +29,7 @@
     $dialog = id(new AphrontDialogView())
       ->setUser($user)
       ->setTitle('Really delete this package?')
-      ->appendChild(hsprintf(
-        '<p>%s</p>',
-        $text))
+      ->appendChild(phutil_tag('p', array(), $text))
       ->addSubmitButton(pht('Delete'))
       ->addCancelButton('/owners/package/'.$package->getID().'/')
       ->setSubmitURI($request->getRequestURI());
Index: src/applications/people/controller/PhabricatorPeopleEditController.php
===================================================================
--- src/applications/people/controller/PhabricatorPeopleEditController.php
+++ src/applications/people/controller/PhabricatorPeopleEditController.php
@@ -414,8 +414,8 @@
 
     if ($is_self) {
       $inst = pht('NOTE: You can not edit your own role.');
-      $form->appendChild(hsprintf(
-        '<p class="aphront-form-instructions">%s</p>', $inst));
+      $form->appendChild(
+        phutil_tag('p', array('class' => 'aphront-form-instructions'), $inst));
     }
 
     $form
@@ -473,8 +473,8 @@
     $form
       ->setUser($admin)
       ->setAction($request->getRequestURI())
-      ->appendChild(hsprintf(
-        '<p class="aphront-form-instructions">%s</p>', $inst));
+      ->appendChild(
+        phutil_tag('p', array('class' => 'aphront-form-instructions'), $inst));
 
     if ($user->getIsSystemAgent()) {
       $form
@@ -703,11 +703,10 @@
       ),
       pht('User Guide: Account Roles'));
 
-    $inst = pht('For a detailed explanation of account roles, see %s.',
-      $roles_link);
-    return hsprintf(
-      '<p class="aphront-form-instructions">%s</p>',
-      $inst);
+    return phutil_tag(
+      'p',
+      array('class' => 'aphront-form-instructions'),
+      pht('For a detailed explanation of account roles, see %s.', $roles_link));
   }
 
   private function processSetAccountPicture(PhabricatorUser $user) {
Index: src/applications/people/controller/PhabricatorPeopleProfileController.php
===================================================================
--- src/applications/people/controller/PhabricatorPeopleProfileController.php
+++ src/applications/people/controller/PhabricatorPeopleProfileController.php
@@ -127,10 +127,8 @@
     $builder->setShowHovercards(true);
     $view = $builder->buildView();
 
-    return hsprintf(
-      '<div class="profile-feed profile-wrap-responsive">
-        %s
-      </div>',
+    return phutil_tag_div(
+      'profile-feed profile-wrap-responsive',
       $view->render());
   }
 }
Index: src/applications/phame/controller/post/PhamePostEditController.php
===================================================================
--- src/applications/phame/controller/post/PhamePostEditController.php
+++ src/applications/phame/controller/post/PhamePostEditController.php
@@ -143,17 +143,14 @@
         ->addCancelButton($cancel_uri)
         ->setValue($submit_button));
 
-    $preview_panel = hsprintf(
-      '<div class="aphront-panel-preview">
-         <div class="phame-post-preview-header">
-           Post Preview
-         </div>
-         <div id="post-preview">
-           <div class="aphront-panel-preview-loading-text">
-             Loading preview...
-           </div>
-         </div>
-       </div>');
+    $loading = phutil_tag_div(
+      'aphront-panel-preview-loading-text',
+      pht('Loading preview...'));
+
+    $preview_panel = phutil_tag_div('aphront-panel-preview', array(
+      phutil_tag_div('phame-post-preview-header', pht('Post Preview')),
+      phutil_tag('div', array('id' => 'post-preview'), $loading),
+    ));
 
     require_celerity_resource('phame-css');
     Javelin::initBehavior(
Index: src/applications/phame/controller/post/PhamePostPreviewController.php
===================================================================
--- src/applications/phame/controller/post/PhamePostPreviewController.php
+++ src/applications/phame/controller/post/PhamePostPreviewController.php
@@ -23,7 +23,7 @@
       PhamePost::MARKUP_FIELD_BODY,
       $user);
 
-    $content = hsprintf('<div class="phabricator-remarkup">%s</div>', $content);
+    $content = phutil_tag_div('phabricator-remarkup', $content);
 
     return id(new AphrontAjaxResponse())->setContent($content);
   }
Index: src/applications/phame/skins/PhameBasicBlogSkin.php
===================================================================
--- src/applications/phame/skins/PhameBasicBlogSkin.php
+++ src/applications/phame/skins/PhameBasicBlogSkin.php
@@ -123,7 +123,7 @@
   }
 
   protected function render404Page() {
-    return hsprintf('<h2>404 Not Found</h2>');
+    return phutil_tag('h2', array(), pht('404 Not Found'));
   }
 
   final public function getResourceURI($resource) {
Index: src/applications/phpast/controller/PhabricatorXHPASTViewFramesetController.php
===================================================================
--- src/applications/phpast/controller/PhabricatorXHPASTViewFramesetController.php
+++ src/applications/phpast/controller/PhabricatorXHPASTViewFramesetController.php
@@ -14,15 +14,14 @@
 
     $response = new AphrontWebpageResponse();
     $response->setFrameable(true);
-    $response->setContent(hsprintf(
-      '<frameset cols="33%%, 34%%, 33%%">'.
-        '<frame src="/xhpast/input/%s/" />'.
-        '<frame src="/xhpast/tree/%s/" />'.
-        '<frame src="/xhpast/stream/%s/" />'.
-      '</frameset>',
-      $id,
-      $id,
-      $id));
+    $response->setContent(phutil_tag(
+      'frameset',
+      array('cols' => '33%, 34%, 33%'),
+      array(
+        phutil_tag('frame', array('src' => "/xhpast/input/{$id}/")),
+        phutil_tag('frame', array('src' => "/xhpast/tree/{$id}/")),
+        phutil_tag('frame', array('src' => "/xhpast/stream/{$id}/")),
+      )));
 
     return $response;
   }
Index: src/applications/phriction/controller/PhrictionDiffController.php
===================================================================
--- src/applications/phriction/controller/PhrictionDiffController.php
+++ src/applications/phriction/controller/PhrictionDiffController.php
@@ -174,15 +174,13 @@
           pht('Most Recent Change'));
       }
 
-      $navigation_table = hsprintf(
-        '<table class="phriction-history-nav-table">
-          <tr>
-            <td class="nav-prev">%s</td>
-            <td class="nav-next">%s</td>
-          </tr>
-        </table>',
-        $link_l,
-        $link_r);
+      $navigation_table = phutil_tag(
+        'table',
+        array('class' => 'phriction-history-nav-table'),
+        phutil_tag('tr', array(), array(
+          phutil_tag('td', array('class' => 'nav-prev'), $link_l),
+          phutil_tag('td', array('class' => 'nav-next'), $link_r),
+        )));
     }
 
 
Index: src/applications/phriction/controller/PhrictionNewController.php
===================================================================
--- src/applications/phriction/controller/PhrictionNewController.php
+++ src/applications/phriction/controller/PhrictionNewController.php
@@ -26,7 +26,7 @@
           ->setUser($user)
           ->appendChild(pht(
             'The document %s already exists. Do you want to edit it instead?',
-            hsprintf('<tt>%s</tt>', $slug)))
+            phutil_tag('tt', array(), $slug)))
           ->addHiddenInput('slug', $slug)
           ->addHiddenInput('prompt', 'yes')
           ->addCancelButton('/w/')
Index: src/applications/phriction/storage/PhrictionContent.php
===================================================================
--- src/applications/phriction/storage/PhrictionContent.php
+++ src/applications/phriction/storage/PhrictionContent.php
@@ -75,19 +75,15 @@
       $engine);
 
     if ($toc) {
-      $toc = hsprintf(
-        '<div class="phabricator-remarkup-toc">'.
-          '<div class="phabricator-remarkup-toc-header">%s</div>'.
-          '%s'.
-        '</div>',
-        pht('Table of Contents'),
-        $toc);
+      $toc = phutil_tag_div('phabricator-remarkup-toc', array(
+        phutil_tag_div(
+          'phabricator-remarkup-toc-header',
+          pht('Table of Contents')),
+        $toc,
+      ));
     }
 
-    return hsprintf(
-      '<div class="phabricator-remarkup">%s%s</div>',
-      $toc,
-      $output);
+    return phutil_tag_div('phabricator-remarkup', array($toc, $output));
   }
 
 
Index: src/applications/project/controller/PhabricatorProjectProfileController.php
===================================================================
--- src/applications/project/controller/PhabricatorProjectProfileController.php
+++ src/applications/project/controller/PhabricatorProjectProfileController.php
@@ -52,10 +52,9 @@
       ->addColumn($feed)
       ->setFluidLayout(true);
 
-    $content = hsprintf(
-      '<div class="phabricator-project-layout">%s%s</div>',
-        $tasks,
-        $content);
+    $content = phutil_tag_div(
+      'phabricator-project-layout',
+      array($tasks, $content));
 
     $header = id(new PHUIHeaderView())
       ->setHeader($project->getName())
@@ -109,17 +108,20 @@
     if ($affiliated) {
       $affiliated = phutil_tag('ul', array(), $affiliated);
     } else {
-      $affiliated = hsprintf('<p><em>%s</em></p>', pht(
-        'No one is affiliated with this project.'));
+      $affiliated = phutil_tag('p', array(),
+        phutil_tag('em', array(),
+          pht('No one is affiliated with this project.')));
     }
 
-    return hsprintf(
-      '<div class="phabricator-profile-info-group profile-wrap-responsive">'.
-        '<h1 class="phabricator-profile-info-header">%s</h1>'.
-        '<div class="phabricator-profile-info-pane">%s</div>'.
-      '</div>',
-      pht('People'),
-      $affiliated);
+    return phutil_tag_div(
+      'phabricator-profile-info-group profile-wrap-responsive',
+      array(
+        phutil_tag(
+          'h1',
+          array('class' => 'phabricator-profile-info-header'),
+          pht('People')),
+        phutil_tag_div('phabricator-profile-info-pane', $affiliated),
+      ));
   }
 
   private function renderFeedPage(
@@ -147,10 +149,8 @@
     $builder->setShowHovercards(true);
     $view = $builder->buildView();
 
-    return hsprintf(
-      '<div class="profile-feed profile-wrap-responsive">'.
-        '%s'.
-      '</div>',
+    return phutil_tag_div(
+      'profile-feed profile-wrap-responsive',
       $view->render());
   }
 
Index: src/applications/repository/controller/PhabricatorRepositoryArcanistProjectEditController.php
===================================================================
--- src/applications/repository/controller/PhabricatorRepositoryArcanistProjectEditController.php
+++ src/applications/repository/controller/PhabricatorRepositoryArcanistProjectEditController.php
@@ -87,8 +87,9 @@
         id(new AphrontFormTextControl())
           ->setLabel('Indexed Languages')
           ->setName('symbolIndexLanguages')
-          ->setCaption(
-            hsprintf('Separate with commas, for example: <tt>php, py</tt>'))
+          ->setCaption(pht(
+            'Separate with commas, for example: %s',
+            phutil_tag('tt', array(), 'php, py')))
           ->setValue($langs))
       ->appendChild(
         id(new AphrontFormTokenizerControl())
Index: src/applications/search/controller/PhabricatorSearchController.php
===================================================================
--- src/applications/search/controller/PhabricatorSearchController.php
+++ src/applications/search/controller/PhabricatorSearchController.php
@@ -252,18 +252,17 @@
           $results[] = $view->render();
         }
 
-        $results = hsprintf(
-          '<div class="phabricator-search-result-list">'.
-            '%s'.
-            '<div class="search-results-pager">%s</div>'.
-          '</div>',
+        $results = phutil_tag_div('phabricator-search-result-list', array(
           phutil_implode_html("\n", $results),
-          $pager->render());
+          phutil_tag_div('search-results-pager', $pager->render()),
+        ));
       } else {
-        $results = hsprintf(
-          '<div class="phabricator-search-result-list">'.
-            '<p class="phabricator-search-no-results">No search results.</p>'.
-          '</div>');
+        $results = phutil_tag_div(
+          'phabricator-search-result-list',
+          phutil_tag(
+            'p',
+            array('class' => 'phabricator-search-no-results'),
+            pht('No search results.')));
       }
       $results = id(new PHUIBoxView())
         ->addMargin(PHUI::MARGIN_LARGE)
Index: src/applications/settings/panel/PhabricatorSettingsPanelConduit.php
===================================================================
--- src/applications/settings/panel/PhabricatorSettingsPanelConduit.php
+++ src/applications/settings/panel/PhabricatorSettingsPanelConduit.php
@@ -67,11 +67,12 @@
     $cert_form = new AphrontFormView();
     $cert_form
       ->setUser($user)
-      ->appendChild(hsprintf(
-        '<p class="aphront-form-instructions">%s</p>',
+      ->appendChild(phutil_tag(
+        'p',
+        array('class' => 'aphront-form-instructions'),
         pht('This certificate allows you to authenticate over Conduit, '.
           'the Phabricator API. Normally, you just run %s to install it.',
-          hsprintf('<tt>%s</tt>', 'arc install-certificate'))))
+          phutil_tag('tt', array(), 'arc install-certificate'))))
       ->appendChild(
         id(new AphrontFormTextAreaControl())
           ->setLabel(pht('Certificate'))
@@ -90,8 +91,10 @@
       ->setUser($user)
       ->setAction($this->getPanelURI())
       ->setWorkflow(true)
-      ->appendChild(hsprintf(
-        '<p class="aphront-form-instructions">%s</p>', $regen_instruction))
+      ->appendChild(phutil_tag(
+        'p',
+        array('class' => 'aphront-form-instructions'),
+        $regen_instruction))
       ->appendChild(
         id(new AphrontFormSubmitControl())
           ->setValue(pht('Regenerate Certificate')));
Index: src/applications/settings/panel/PhabricatorSettingsPanelDisplayPreferences.php
===================================================================
--- src/applications/settings/panel/PhabricatorSettingsPanelDisplayPreferences.php
+++ src/applications/settings/panel/PhabricatorSettingsPanelDisplayPreferences.php
@@ -73,7 +73,7 @@
     $editor_instructions = pht('Link to edit files in external editor. '.
       '%%f is replaced by filename, %%l by line number, %%r by repository '.
       'callsign, %%%% by literal %%. For documentation, see: %s',
-      hsprintf('%s', $editor_doc_link));
+      $editor_doc_link);
 
     $form = id(new AphrontFormView())
       ->setUser($user)
Index: src/applications/settings/panel/PhabricatorSettingsPanelEmailAddresses.php
===================================================================
--- src/applications/settings/panel/PhabricatorSettingsPanelEmailAddresses.php
+++ src/applications/settings/panel/PhabricatorSettingsPanelEmailAddresses.php
@@ -301,9 +301,9 @@
       ->setUser($user)
       ->addHiddenInput('verify', $email_id)
       ->setTitle(pht("Send Another Verification Email?"))
-      ->appendChild(hsprintf(
-        '<p>%s</p>',
-        pht('Send another copy of the verification email to %s?', $address)))
+      ->appendChild(phutil_tag('p', array(), pht(
+        'Send another copy of the verification email to %s?',
+        $address)))
       ->addSubmitButton(pht('Send Email'))
       ->addCancelButton($uri);
 
@@ -342,10 +342,10 @@
       ->setUser($user)
       ->addHiddenInput('primary', $email_id)
       ->setTitle(pht("Change primary email address?"))
-      ->appendChild(hsprintf(
-        '<p>If you change your primary address, Phabricator will send'.
-          ' all email to %s.</p>',
-        $address))
+      ->appendChild(phutil_tag('p', array(), pht(
+        'If you change your primary address, Phabricator will send'.
+          ' all email to %s.',
+        $address)))
       ->addSubmitButton(pht('Change Primary Address'))
       ->addCancelButton($uri);
 
Index: src/applications/system/PhabricatorDebugController.php
===================================================================
--- src/applications/system/PhabricatorDebugController.php
+++ src/applications/system/PhabricatorDebugController.php
@@ -28,7 +28,7 @@
     $out = ob_get_clean();
 
     $response = new AphrontWebpageResponse();
-    $response->setContent(hsprintf('<pre>%s</pre>', $out));
+    $response->setContent(phutil_tag('pre', array(), $out));
     return $response;
   }
 
Index: webroot/index.php
===================================================================
--- webroot/index.php
+++ webroot/index.php
@@ -99,10 +99,15 @@
       phlog($unexpected_output);
 
       if ($response instanceof AphrontWebpageResponse) {
-        echo hsprintf(
-          '<div style="background: #eeddff; white-space: pre-wrap;
-                       z-index: 200000; position: relative; padding: 8px;
-                       font-family: monospace;">%s</div>',
+        echo phutil_tag(
+          'div',
+          array('style' =>
+            'background: #eeddff;'.
+            'white-space: pre-wrap;'.
+            'z-index: 200000;'.
+            'position: relative;'.
+            'padding: 8px;'.
+            'font-family: monospace'),
           $unexpected_output);
       }
     }