diff --git a/TOOLSGuide.md b/TOOLSGuide.md
index 2a9958f6b..7638848d1 100644
--- a/TOOLSGuide.md
+++ b/TOOLSGuide.md
@@ -1201,6 +1201,7 @@ General Reading Sites*
 * [Dll Downloader](http://www.dlldownloader.com/) - *Download DLL Files for Windows* 
 * [sven dpi](https://www.sven.de/dpi/) - *DPI Calculator* 
 * [JScreenFix](https://www.jscreenfix.com/) - *Repair Stuck Pixels* 
+* [EIZO](https://www.eizo.be/monitor-test/) or [LCDTech](https://lcdtech.info/en/tests/) - *Display Performance Tests*
 * [NVDA](https://www.nvaccess.org/download/) - *Screen Reader / [Github](https://github.com/nvaccess/nvda)* 
 * [CrossOver](https://www.codeweavers.com/crossover) - *Run Windows Programs on Mac / Linux / Infinite Free Trials*
 * [Hosts File Editor](https://hostsfileeditor.com/) - *Windows Hosts File Editor*