diff --git a/resources/celerity/map.php b/resources/celerity/map.php
--- a/resources/celerity/map.php
+++ b/resources/celerity/map.php
@@ -13,7 +13,7 @@
     'core.pkg.js' => '5d80e0db',
     'darkconsole.pkg.js' => '1f9a31bc',
     'differential.pkg.css' => '45951e9e',
-    'differential.pkg.js' => '414ada25',
+    'differential.pkg.js' => 'b71b8c5d',
     'diffusion.pkg.css' => 'a2d17c7d',
     'diffusion.pkg.js' => '6134c5a1',
     'favicon.ico' => '30672e08',
@@ -398,7 +398,7 @@
     'rsrc/js/application/dashboard/behavior-dashboard-query-panel-select.js' => '453c5375',
     'rsrc/js/application/dashboard/behavior-dashboard-tab-panel.js' => 'd4eecc63',
     'rsrc/js/application/diff/DiffChangeset.js' => '99abf4cd',
-    'rsrc/js/application/diff/DiffChangesetList.js' => 'cb1570cb',
+    'rsrc/js/application/diff/DiffChangesetList.js' => '8f1cd52c',
     'rsrc/js/application/diff/DiffInline.js' => 'e83d28f3',
     'rsrc/js/application/diff/behavior-preview-link.js' => '051c7832',
     'rsrc/js/application/differential/behavior-comment-preview.js' => '51c5ad07',
@@ -778,7 +778,7 @@
     'phabricator-darkmessage' => 'c48cccdd',
     'phabricator-dashboard-css' => 'fe5b1869',
     'phabricator-diff-changeset' => '99abf4cd',
-    'phabricator-diff-changeset-list' => 'cb1570cb',
+    'phabricator-diff-changeset-list' => '8f1cd52c',
     'phabricator-diff-inline' => 'e83d28f3',
     'phabricator-drag-and-drop-file-upload' => '58dea2fa',
     'phabricator-draggable-list' => 'bea6e7f4',
@@ -1567,6 +1567,10 @@
     '8e1baf68' => array(
       'phui-button-css',
     ),
+    '8f1cd52c' => array(
+      'javelin-install',
+      'phuix-button-view',
+    ),
     '8ff5e24c' => array(
       'javelin-behavior',
       'javelin-stratcom',
@@ -1950,10 +1954,6 @@
     'cae95e89' => array(
       'syntax-default-css',
     ),
-    'cb1570cb' => array(
-      'javelin-install',
-      'phuix-button-view',
-    ),
     'ccf1cbf8' => array(
       'javelin-install',
       'javelin-dom',
diff --git a/src/applications/differential/view/DifferentialChangesetListView.php b/src/applications/differential/view/DifferentialChangesetListView.php
--- a/src/applications/differential/view/DifferentialChangesetListView.php
+++ b/src/applications/differential/view/DifferentialChangesetListView.php
@@ -298,6 +298,9 @@
         'Show All Inlines' => pht('Show All Inlines'),
 
         'List Inline Comments' => pht('List Inline Comments'),
+
+        'Hide or show all inline comments.' =>
+          pht('Hide or show all inline comments.'),
       ),
     ));
 
diff --git a/webroot/rsrc/js/application/diff/DiffChangesetList.js b/webroot/rsrc/js/application/diff/DiffChangesetList.js
--- a/webroot/rsrc/js/application/diff/DiffChangesetList.js
+++ b/webroot/rsrc/js/application/diff/DiffChangesetList.js
@@ -190,6 +190,10 @@
 
       label = pht('Collapse or expand inline comment.');
       this._installKey('q', label, this._onkeycollapse);
+
+      label = pht('Hide or show all inline comments.');
+      this._installKey('A', label, this._onkeyhideall);
+
     },
 
     isAsleep: function() {
@@ -448,6 +452,15 @@
       this._warnUser(pht('You must select a comment to hide.'));
     },
 
+    _onkeyhideall: function() {
+      var inlines = this._getInlinesByType();
+      if (inlines.visible.length) {
+        this._toggleInlines('all');
+      } else {
+        this._toggleInlines('show');
+      }
+    },
+
     _warnUser: function(message) {
       new JX.Notification()
         .setContent(message)
@@ -1701,6 +1714,10 @@
       this._dropdownMenu.close();
       e.prevent();
 
+      this._toggleInlines(type);
+    },
+
+    _toggleInlines: function(type) {
       var inlines = this._getInlinesByType();
 
       // Clear the selection state since we end up in a weird place if the