diff --git a/org-tools/index.org b/org-tools/index.org
index 53a0196..3b6a503 100644
--- a/org-tools/index.org
+++ b/org-tools/index.org
@@ -111,6 +111,17 @@ org-js is a javascript parser and converter for org-mode
 For a working example of an interactive editor, see
 http://mooz.github.com/org-js/editor/.
 
+** [[https://github.com//xiaoxinghu/orgajs][orga]] by Xiaoxing Hu
+
+Orga is a flexible org-mode syntax parser. It parses org content into
+AST (Abstract Syntax Tree).
+
+** [[https://pandoc.org][pandoc]]
+
+Pandoc is the Swiss-army knife to convert files from one markup format
+into another, it can convert documents from many source format,
+including Org-Mode, to many other.
+
 * Specific purpose tools
 
 ** orgmode for drupal