diff --git a/readme.md b/readme.md
index 5b342b9..212d4f7 100644
--- a/readme.md
+++ b/readme.md
@@ -358,6 +358,7 @@ See [plaintextaccounting.org](https://plaintextaccounting.org) for a great overv
 - [acmetool](https://github.com/hlandau/acmetool) - Automatic certificate acquisition for ACME (Let's Encrypt).
 - [certificate-ripper](https://github.com/Hakky54/certificate-ripper) - Extract server certificates.
 - [neoss](https://github.com/PabloLec/neoss) - User-friendly and detailed socket statistics.
+- [gg](https://github.com/mzz2017/gg) - A command-line tool for one-click proxy in your research and development without installing v2ray or anything else (only for linux).
 
 ### Theming and Customization