diff --git a/inc/instance-config.php b/inc/instance-config.php
index df509b21..41407f0b 100644
--- a/inc/instance-config.php
+++ b/inc/instance-config.php
@@ -169,8 +169,6 @@
 
 	$config['syslog'] = true;
 
-	$config['wordfilters'][] = array('\rule', ''); // 'true' means it's a regular expression
-
 	$config['hour_max_threads'] = false;
 	$config['filters'][] = array(
 		'condition' => array(
@@ -204,6 +202,7 @@ $config['cron_bans'] = true;
 $config['mask_db_error'] = true;
 $config['ban_appeals'] = true;
 $config['show_sages'] = false;
+$config['katex'] = false;
 // 8chan specific mod pages
 require '8chan-mod-pages.php';
 	
diff --git a/settings.php b/settings.php
new file mode 100644
index 00000000..f50da306
--- /dev/null
+++ b/settings.php
@@ -0,0 +1,45 @@
+<?php
+include 'inc/functions.php';
+
+if (!isset($_GET['board']) || !preg_match("/{$config['board_regex']}/u", $_GET['board'])) {
+	http_response_code(400);
+	error('Bad board.');
+}
+if (!openBoard($_GET['board'])) {
+	http_response_code(404);
+	error('No board.');
+}
+
+header('Content-Type: text/json');
+$safe_config['country_flags'] = $config['country_flags'];
+$safe_config['field_disable_name'] = $config['field_disable_name'];
+$safe_config['enable_embedding'] = $config['enable_embedding'];
+$safe_config['force_image_op'] = $config['force_image_op'];
+$safe_config['disable_images'] = $config['disable_images'];
+$safe_config['poster_ids'] = $config['poster_ids'];
+$safe_config['show_sages'] = $config['show_sages'];
+$safe_config['auto_unicode'] = $config['auto_unicode'];
+$safe_config['allow_roll'] = $config['allow_roll'];
+$safe_config['image_reject_repost'] = $config['image_reject_repost'];
+$safe_config['early_404'] = $config['early_404'];
+$safe_config['allow_delete'] = $config['allow_delete'];
+$safe_config['anonymous'] = $config['anonymous'];
+$safe_config['blotter'] = $config['blotter'];
+$safe_config['stylesheets'] = $config['stylesheets'];
+$safe_config['default_stylesheet'] = $config['default_stylesheet'];
+$safe_config['captcha'] = $config['captcha'];
+$safe_config['force_subject_op'] = $config['force_subject_op'];
+$safe_config['tor_posting'] = $config['tor_posting'];
+$safe_config['new_thread_capt'] = $config['new_thread_capt'];
+$safe_config['hour_max_threads'] = $config['hour_max_threads'];
+$safe_config['disable_images'] = $config['disable_images'];
+$safe_config['locale'] = $config['locale'];
+$safe_config['allowed_ext_files'] = $config['allowed_ext_files'];
+$safe_config['allowed_ext'] = $config['allowed_ext'];
+$safe_config['user_flags'] = $config['user_flags'];
+$safe_config['wordfilters'] = $config['wordfilters'];
+$safe_config['latex'] = $config['katex'];
+$safe_config['code_tags'] = in_array('js/code_tags/run_prettify.js', $config['additional_javascript']);
+
+
+echo json_encode($safe_config);