diff --git a/docs/devtools.md b/docs/devtools.md
index 15e7e23e3..9b1c261f1 100644
--- a/docs/devtools.md
+++ b/docs/devtools.md
@@ -1158,3 +1158,4 @@
 * [zio-json](https://zio.dev/zio-json) - JSON Library
 * [Mock Turtle](https://mockturtle.net/) - Generate Mock JSON Data
 * [JSON Bin](https://jsonbin.io/) - JSON Host
+* [JSONGuide](https://jsonguide.com) [Json formatter](https://www.jsonguide.com/jsonformatter) - Online Json formatter and validator