diff --git a/src/__phutil_library_map__.php b/src/__phutil_library_map__.php
--- a/src/__phutil_library_map__.php
+++ b/src/__phutil_library_map__.php
@@ -1842,6 +1842,7 @@
     'PhabricatorConfigOptionType' => 'applications/config/custom/PhabricatorConfigOptionType.php',
     'PhabricatorConfigPHIDModule' => 'applications/config/module/PhabricatorConfigPHIDModule.php',
     'PhabricatorConfigProxySource' => 'infrastructure/env/PhabricatorConfigProxySource.php',
+    'PhabricatorConfigPurgeCacheController' => 'applications/config/controller/PhabricatorConfigPurgeCacheController.php',
     'PhabricatorConfigRequestExceptionHandlerModule' => 'applications/config/module/PhabricatorConfigRequestExceptionHandlerModule.php',
     'PhabricatorConfigResponse' => 'applications/config/response/PhabricatorConfigResponse.php',
     'PhabricatorConfigSchemaQuery' => 'applications/config/schema/PhabricatorConfigSchemaQuery.php',
@@ -5743,6 +5744,7 @@
     'PhabricatorConfigOptionType' => 'Phobject',
     'PhabricatorConfigPHIDModule' => 'PhabricatorConfigModule',
     'PhabricatorConfigProxySource' => 'PhabricatorConfigSource',
+    'PhabricatorConfigPurgeCacheController' => 'PhabricatorController',
     'PhabricatorConfigRequestExceptionHandlerModule' => 'PhabricatorConfigModule',
     'PhabricatorConfigResponse' => 'AphrontStandaloneHTMLResponse',
     'PhabricatorConfigSchemaQuery' => 'Phobject',
diff --git a/src/applications/cache/management/PhabricatorCacheManagementPurgeWorkflow.php b/src/applications/cache/management/PhabricatorCacheManagementPurgeWorkflow.php
--- a/src/applications/cache/management/PhabricatorCacheManagementPurgeWorkflow.php
+++ b/src/applications/cache/management/PhabricatorCacheManagementPurgeWorkflow.php
@@ -6,7 +6,8 @@
   protected function didConstruct() {
     $this
       ->setName('purge')
-      ->setSynopsis(pht('Drop data from caches.'))
+      ->setSynopsis(pht('Drop data from caches. APC-based caches can be '.
+                        'purged from the web interface.'))
       ->setArguments(
         array(
           array(
diff --git a/src/applications/cache/spec/PhabricatorDataCacheSpec.php b/src/applications/cache/spec/PhabricatorDataCacheSpec.php
--- a/src/applications/cache/spec/PhabricatorDataCacheSpec.php
+++ b/src/applications/cache/spec/PhabricatorDataCacheSpec.php
@@ -119,4 +119,14 @@
     return $key;
   }
 
+  public function isClearable() {
+    return $this->getName() && $this->getIsEnabled();
+  }
+
+  public function clear() {
+    if ($this->getName() === pht('APC User Cache') ||
+        $this->getName() === pht('APCu')) {
+      apc_clear_cache();
+    }
+  }
 }
diff --git a/src/applications/cache/spec/PhabricatorOpcodeCacheSpec.php b/src/applications/cache/spec/PhabricatorOpcodeCacheSpec.php
--- a/src/applications/cache/spec/PhabricatorOpcodeCacheSpec.php
+++ b/src/applications/cache/spec/PhabricatorOpcodeCacheSpec.php
@@ -200,4 +200,15 @@
     }
   }
 
+  public function isClearable() {
+    return $this->getName() && $this->getIsEnabled();
+  }
+
+  public function clear() {
+    if ($this->getName() === pht('APC')) {
+      apc_clear_cache();
+    } else if ($this->getName() === pht('Zend OPcache')) {
+      opcache_reset();
+    }
+  }
 }
diff --git a/src/applications/config/application/PhabricatorConfigApplication.php b/src/applications/config/application/PhabricatorConfigApplication.php
--- a/src/applications/config/application/PhabricatorConfigApplication.php
+++ b/src/applications/config/application/PhabricatorConfigApplication.php
@@ -55,7 +55,10 @@
           '' => 'PhabricatorConfigIssueListController',
           '(?P<key>[^/]+)/' => 'PhabricatorConfigIssueViewController',
         ),
-        'cache/' => 'PhabricatorConfigCacheController',
+        'cache/' => array(
+          '' => 'PhabricatorConfigCacheController',
+          'purge/' => 'PhabricatorConfigPurgeCacheController',
+        ),
         'module/' => array(
           '(?P<module>[^/]+)/' => 'PhabricatorConfigModuleController',
         ),
diff --git a/src/applications/config/controller/PhabricatorConfigCacheController.php b/src/applications/config/controller/PhabricatorConfigCacheController.php
--- a/src/applications/config/controller/PhabricatorConfigCacheController.php
+++ b/src/applications/config/controller/PhabricatorConfigCacheController.php
@@ -39,8 +39,22 @@
 
     $this->renderCommonProperties($properties, $cache);
 
+    $purge_icon = id(new PHUIIconView())
+      ->setIconFont('fa-exclamation-triangle');
+
+    $purge_button = id(new PHUIButtonView())
+      ->setText(pht('Purge Caches'))
+      ->setHref('/config/cache/purge/')
+      ->setTag('a')
+      ->setWorkflow(true)
+      ->setIcon($purge_icon);
+
+    $header = id(new PHUIHeaderView())
+      ->setHeader(pht('Opcode Cache'))
+      ->addActionLink($purge_button);
+
     return id(new PHUIObjectBoxView())
-      ->setHeaderText(pht('Opcode Cache'))
+      ->setHeader($header)
       ->addPropertyList($properties);
   }
 
diff --git a/src/applications/config/controller/PhabricatorConfigPurgeCacheController.php b/src/applications/config/controller/PhabricatorConfigPurgeCacheController.php
new file mode 100644
--- /dev/null
+++ b/src/applications/config/controller/PhabricatorConfigPurgeCacheController.php
@@ -0,0 +1,54 @@
+<?php
+
+final class PhabricatorConfigPurgeCacheController
+  extends PhabricatorController {
+
+  public function shouldRequireAdmin() {
+    return true;
+  }
+
+  public function handleRequest(AphrontRequest $request) {
+    $viewer = $this->getViewer();
+
+    $code_cache = PhabricatorOpcodeCacheSpec::getActiveCacheSpec();
+    $data_cache = PhabricatorDataCacheSpec::getActiveCacheSpec();
+
+    if (!$code_cache->isClearable() && !$data_cache->isClearable()) {
+      return $this->newDialog()
+        ->setTitle(pht('No Caches to Reset'))
+        ->appendParagraph(
+          pht('None of the caches on this page can be cleared.'))
+        ->addCancelButton('/config/cache/');
+    }
+
+    if ($request->isDialogFormPost()) {
+      $code_cache->clear();
+      $data_cache->clear();
+
+      return id(new AphrontRedirectResponse())->setURI('/config/cache');
+    }
+
+    $caches = id(new PHUIPropertyListView())
+      ->setUser($viewer);
+
+    if ($code_cache->isClearable()) {
+      $caches->addProperty(
+        pht('Opcode'),
+        $code_cache->getName());
+    }
+
+    if ($data_cache->isClearable()) {
+      $caches->addProperty(
+        pht('Data'),
+        $data_cache->getName());
+    }
+
+    return $this->newDialog()
+      ->setTitle('Really Clear Cache?')
+      ->setShortTitle('Really Clear Cache')
+      ->appendParagraph(pht('The following caches will be cleared:'))
+      ->appendChild($caches)
+      ->addSubmitButton(pht('Clear'))
+      ->addCancelButton('/config/cache/');
+  }
+}