diff --git a/__phutil_library_map__.php b/__phutil_library_map__.php
index e0514ac..9331a17 100644
--- a/__phutil_library_map__.php
+++ b/__phutil_library_map__.php
@@ -14,6 +14,9 @@
 		'AdminManageObjectsApplication' => 'src/admin/AdminManageObjectsApplication.php',
 		'GitHubAccountCustomField' => 'src/customfields/GitHubAccountCustomField.php',
 		'MediaWikiUserpageCustomField' => 'src/customfields/MediaWikiUserpageCustomField.php',
+		'MediaWikiLinksApplication' => 'src/mediawikilinks/MediaWikiLinksApplication.php',
+		'MediaWikiLinksConfigOptions' => 'src/mediawikilinks/MediaWikiLinksConfigOptions.php',
+		'MediaWikiLinksRemarkupRule' => 'src/mediawikilinks/MediaWikiLinksRemarkupRule.php',
 		'PhutilCustomProxy' => 'src/proxy/PhutilCustomProxy.php',
 		'PhabricatorMediaWikiAuthProvider' => 'src/oauth/PhabricatorMediaWikiAuthProvider.php',
 		'PhutilMediaWikiAuthAdapter' => 'src/oauth/PhutilMediaWikiAuthAdapter.php',
@@ -31,6 +34,9 @@
 		'AdminChangeFileVisibilityController' => 'PhabricatorController',
 		'GitHubAccountCustomField' => 'PhabricatorUserCustomField',
 		'MediaWikiUserpageCustomField' => 'PhabricatorUserCustomField',
+		'MediaWikiLinksApplication' => 'PhabricatorApplication',
+		'MediaWikiLinksConfigOptions' => 'PhabricatorApplicationConfigOptions',
+		'MediaWikiLinksRemarkupRule' => 'PhutilRemarkupRule',
 		'PhabricatorMediaWikiAuthProvider' => 'PhabricatorOAuth1AuthProvider',
 		'PhutilCustomProxy' => 'PhutilHTTPEngineExtension',
 		'PhutilMediaWikiAuthAdapter' => 'PhutilOAuth1AuthAdapter',
diff --git a/src/mediawikilinks/MediaWikiLinksApplication.php b/src/mediawikilinks/MediaWikiLinksApplication.php
new file mode 100644
index 0000000..013d55a
--- /dev/null
+++ b/src/mediawikilinks/MediaWikiLinksApplication.php
@@ -0,0 +1,33 @@
+<?php
+
+/**
+ * @license http://www.apache.org/licenses/ Apache License 2.0
+ */
+final class MediaWikiLinksApplication extends PhabricatorApplication {
+
+	public function getName() {
+		return pht( 'MediaWiki Links' );
+	}
+
+	public function getShortDescription() {
+		return pht( 'Use Wikitext Links' );
+	}
+
+	public function getIcon() {
+		return 'fa-link';
+	}
+
+	public function getTitleGlyph() {
+		return "\xEF\x83\x81";
+	}
+
+	public function getApplicationGroup() {
+		return self::GROUP_UTILITIES;
+	}
+
+	public function getRemarkupRules() {
+		return [
+			new MediaWikiLinksRemarkupRule(),
+		];
+	}
+}
diff --git a/src/mediawikilinks/MediaWikiLinksConfigOptions.php b/src/mediawikilinks/MediaWikiLinksConfigOptions.php
new file mode 100644
index 0000000..6aedf1a
--- /dev/null
+++ b/src/mediawikilinks/MediaWikiLinksConfigOptions.php
@@ -0,0 +1,38 @@
+<?php
+
+/**
+ * @license http://www.apache.org/licenses/ Apache License 2.0
+ */
+final class MediaWikiLinksConfigOptions
+	extends PhabricatorApplicationConfigOptions {
+
+	public function getName() {
+		return pht( 'MediaWiki Links' );
+	}
+
+	public function getDescription() {
+		return pht( 'Configure MediaWiki Links URLs.' );
+	}
+
+	public function getIcon() {
+		return 'fa-links';
+	}
+
+	public function getGroup() {
+		return 'utilities';
+	}
+
+	public function getOptions() {
+		return [
+			$this->newOption( 'mediawikilinks.base', 'string', null )
+				->addExample( 'https://www.mediawiki.org/wiki/', pht( 'MediaWiki wiki' ) )
+				->addExample( 'https://meta.miraheze.org/wiki/', pht( 'Miraheze Meta' ) )
+				->setDescription(
+					pht(
+						'URL prefix of where Wikitext-style links go to. The page will ' .
+						'be appended to the URL.'
+					)
+				),
+		];
+	}
+}
diff --git a/src/mediawikilinks/MediaWikiLinksRemarkupRule.php b/src/mediawikilinks/MediaWikiLinksRemarkupRule.php
new file mode 100644
index 0000000..cefea16
--- /dev/null
+++ b/src/mediawikilinks/MediaWikiLinksRemarkupRule.php
@@ -0,0 +1,95 @@
+<?php
+
+// Copied from https://we.phorge.it/source/phorge/browse/master/src/infrastructure/markup/markuprule/PhutilRemarkupDocumentLinkRule.php
+
+/**
+ * @license http://www.apache.org/licenses/ Apache License 2.0
+ */
+final class MediaWikiLinksRemarkupRule extends PhutilRemarkupRule {
+
+	public function getPriority(): float {
+		// Set to 200.0 since Phriction is set to 175.0: https://we.phorge.it/source/phorge/browse/master/src/applications/phriction/markup/PhrictionRemarkupRule.php;b9ea6f1ce823dcd83a431f5913d9b1fe29dd25bd$8
+		return 200.0;
+	}
+
+	public function apply( $text ) {
+		// Handle mediawiki-style links: [[ href | [name] ]]
+		$text = preg_replace_callback(
+			'@\B\\[\\[([^|\\]]+)(?:\\|([^\\]]*))?\\]\\]\B@U',
+			[ $this, 'markupDocumentLink' ],
+			$text
+		);
+
+		return $text;
+	}
+
+	protected function renderHyperlink( $link, $name ) {
+		$engine = $this->getEngine();
+
+		if ( $engine->isTextMode() ) {
+			if ( !strlen( $name ) ) {
+				return $link;
+			}
+
+			return $name . ' <' . $link . '>';
+		}
+
+		if ( $engine->getState( 'toc' ) ) {
+			return $name;
+		}
+
+		return phutil_tag(
+			'a',
+			[
+				'href' => $link,
+				'class' => $this->getRemarkupLinkClass( false ),
+				'target' => '_blank',
+				'rel' => 'noreferrer',
+			],
+			$name
+		);
+	}
+
+	protected function doPipeTrick( string $page ): string {
+		// Remove leading prefix (e.g. [[w:Egg]])
+		$page = preg_replace( '/^:?\\w+:/', '', $page );
+
+		$oldPage = $page;
+		// Remove parenthesis
+		$page = preg_replace( '/\(.+/', '', $page );
+
+		// Remove commas if parenthesis were not removed
+		if ( $oldPage === $page ) {
+			$page = preg_replace( '/,.+/', '', $page );
+		}
+
+		return trim( $page );
+	}
+
+	public function markupDocumentLink( array $matches ) {
+		$page = trim( $matches[1] );
+		$name = isset( $matches[2] ) ? trim( $matches[2] ) : null;
+
+		if ( !$this->isFlatText( $page ) ) {
+			return $matches[0];
+		}
+
+		if ( !$this->isFlatText( $name ) ) {
+			return $matches[0];
+		}
+
+		$urlPrefix = PhabricatorEnv::getEnvConfig( 'mediawikilinks.base' );
+		if ( !phutil_nonempty_string( $urlPrefix ) ) {
+			return $matches[0];
+		}
+
+		$url = $urlPrefix . str_replace( ' ', '_', $page );
+		if ( $name === null ) {
+			$name = $page;
+		} elseif ( $name === '' ) {
+			$name = $this->doPipeTrick( $page );
+		}
+
+		return $this->getEngine()->storeText( $this->renderHyperlink( $url, $name ) );
+	}
+}