diff --git a/inc/functions.php b/inc/functions.php
index 2473ed7c..830b9761 100755
--- a/inc/functions.php
+++ b/inc/functions.php
@@ -1501,53 +1501,62 @@ function checkMute() {
 function buildIndex($global_api = "yes") {
 	global $board, $config, $build_pages;
 
-	$pages = getPages();
-	if (!$config['try_smarter'])
-		$antibot = create_antibot($board['uri']);
+	if (!$config['smart_build']) {
+		$pages = getPages();
+		if (!$config['try_smarter'])
+			$antibot = create_antibot($board['uri']);
 
-	if ($config['api']['enabled']) {
-		$api = new Api();
-		$catalog = array();
+		if ($config['api']['enabled']) {
+			$api = new Api();
+			$catalog = array();
+		}
 	}
 
 	for ($page = 1; $page <= $config['max_pages']; $page++) {
 		$filename = $board['dir'] . ($page == 1 ? $config['file_index'] : sprintf($config['file_page'], $page));
+		$jsonFilename = $board['dir'] . ($page - 1) . '.json'; // pages should start from 0
 
-		if ((!$config['api']['enabled'] || $global_api == "skip") && $config['try_smarter'] && isset($build_pages)
-			 && !empty($build_pages) && !in_array($page, $build_pages) )
-			continue;
-		$content = index($page);
-		if (!$content)
-			break;
-
-		// json api
-		if ($config['api']['enabled']) {
-			$threads = $content['threads'];
-			$json = json_encode($api->translatePage($threads));
-			$jsonFilename = $board['dir'] . ($page - 1) . '.json'; // pages should start from 0
-			file_write($jsonFilename, $json);
-
-			$catalog[$page-1] = $threads;
-		}
-
-		if ($config['api']['enabled'] && $global_api != "skip" && $config['try_smarter'] && isset($build_pages)
-			&& !empty($build_pages) && !in_array($page, $build_pages) )
+		if ((!$config['api']['enabled'] || $global_api == "skip" || $config['smart_build']) && $config['try_smarter']
+			 && isset($build_pages) && !empty($build_pages) && !in_array($page, $build_pages) )
 			continue;
 
-		if ($config['try_smarter']) {
-			$antibot = create_antibot($board['uri'], 0 - $page);
-			$content['current_page'] = $page;
-		}
-		$antibot->reset();
-		$content['pages'] = $pages;
-		$content['pages'][$page-1]['selected'] = true;
-		$content['btn'] = getPageButtons($content['pages']);
-		$content['antibot'] = $antibot;
+		if (!$config['smart_build']) {
+			$content = index($page);
+			if (!$content)
+				break;
 
-		file_write($filename, Element('index.html', $content));
+			// json api
+			if ($config['api']['enabled']) {
+				$threads = $content['threads'];
+				$json = json_encode($api->translatePage($threads));
+				file_write($jsonFilename, $json);
+
+				$catalog[$page-1] = $threads;
+			}
+
+			if ($config['api']['enabled'] && $global_api != "skip" && $config['try_smarter'] && isset($build_pages)
+				&& !empty($build_pages) && !in_array($page, $build_pages) )
+				continue;
+
+			if ($config['try_smarter']) {
+				$antibot = create_antibot($board['uri'], 0 - $page);
+				$content['current_page'] = $page;
+			}
+			$antibot->reset();
+			$content['pages'] = $pages;
+			$content['pages'][$page-1]['selected'] = true;
+			$content['btn'] = getPageButtons($content['pages']);
+			$content['antibot'] = $antibot;
+
+			file_write($filename, Element('index.html', $content));
+		}
+		else {
+			file_unlink($filename);
+			file_unlink($jsonFilename);
+		}
 	}
 
-	if ($page < $config['max_pages']) {
+	if (!$config['smart_build'] && $page < $config['max_pages']) {
 		for (;$page<=$config['max_pages'];$page++) {
 			$filename = $board['dir'] . ($page==1 ? $config['file_index'] : sprintf($config['file_page'], $page));
 			file_unlink($filename);
@@ -1561,13 +1570,21 @@ function buildIndex($global_api = "yes") {
 
 	// json api catalog
 	if ($config['api']['enabled'] && $global_api != "skip") {
-		$json = json_encode($api->translateCatalog($catalog));
-		$jsonFilename = $board['dir'] . 'catalog.json';
-		file_write($jsonFilename, $json);
+		if ($config['smart_build']) {
+			$jsonFilename = $board['dir'] . 'catalog.json';
+			file_unlink($jsonFilename);
+			$jsonFilename = $board['dir'] . 'threads.json';
+			file_unlink($jsonFilename);
+		}
+		else {
+			$json = json_encode($api->translateCatalog($catalog));
+			$jsonFilename = $board['dir'] . 'catalog.json';
+			file_write($jsonFilename, $json);
 
-		$json = json_encode($api->translateCatalog($catalog, true));
-		$jsonFilename = $board['dir'] . 'threads.json';
-		file_write($jsonFilename, $json);
+			$json = json_encode($api->translateCatalog($catalog, true));
+			$jsonFilename = $board['dir'] . 'threads.json';
+			file_write($jsonFilename, $json);
+		}
 	}
 
 	if ($config['try_smarter'])