diff --git a/docs/system-tools.md b/docs/system-tools.md
index 277615376..3e58ee111 100644
--- a/docs/system-tools.md
+++ b/docs/system-tools.md
@@ -327,6 +327,7 @@ ## ▷ Mouse / Keyboard
 * [Cosmos](https://ryanis.cool/cosmos/) - Create Custom Keyboards
 * [Keyboard Simulator](https://keyboardsimulator.xyz/) - Design & Test Virtual Keyboards
 * [Key Test](https://en.key-test.ru/) - Keyboard Tester
+* [Keyboard Tester](https://keyboardtester.pro/) - Free Online Keyboard Testing Tool
 
 ***