diff --git a/README.md b/README.md
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+++ b/README.md
@@ -231,6 +231,7 @@ No need to mention the author.
 - [MockingBot](https://modao.cc/) Mobile prototyping tool without headache.
 - [POP](https://marvelapp.com/pop/?popref=1) Transform pen and paper ideas into a real working prototype.
 - [Prott](https://prottapp.com/) Prototyping tool for Web, iOS, Android apps.
+- [ERD Lab](https://www.erdlab.io/) - Free cloud based entity relationship diagram (ERD) tool made for developers.
 
 ## Mockup