diff --git a/DEVTools.md b/DEVTools.md
index edbfd9acc..d15b3634c 100644
--- a/DEVTools.md
+++ b/DEVTools.md
@@ -1187,6 +1187,7 @@
 * [Brython](https://brython.info/) - Python 3 Web Scripting Language
 * [BuiltWith](https://builtwith.com/) - Find Out What Sites are Built With
 * [Bug](https://auz.github.io/Bug/) - Add Crawling Bugs to Website
+* [LibreCaptcha](https://github.com/librecaptcha/lc-core) or [mCaptcha](https://mcaptcha.org/) - Privacy-based Captcha Systems
 * [OneLinePlayer](https://onelineplayer.com/) - Vimeo / Dropbox Video Player
 * [SCM Music Player](https://www.scmplayer.net/), [WebAMP](https://webamp.org/), [cassette-yt](https://saint-images.github.io/player.html) or [webdeckplayer](https://webdeckplayer.neocities.org/) - Site Audio / Music Players
 * [Stream Defence](https://www.streamdefence.com/) - Website Video Backup System