diff --git a/DEVTools.md b/DEVTools.md
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@@ -173,7 +173,7 @@
 ## ▷ Data Structures
 
 * ⭐ **[Leetcode](https://leetcode.com/)** - Coding Practice
-* ⭐ **Leetcode Tools** - [Discord](https://discord.com/invite/vAPMSZ5UwG) / [Solutions](https://walkccc.me/LeetCode/), [2](https://leetcode.ca/) / [Company Questions](https://github.com/MysteryVaibhav/leetcode_company_wise_questions), [2](https://docs.google.com/document/d/1icaNSRq6XcWO3EOycEP9F9P8SLerBanpY3Ni_ZzCfFA/edit) / [Animations](https://github.com/MisterBooo/LeetCodeAnimation) / [Anki Cards](https://github.com/fspv/leetcode-anki) / [Videos](https://github.com/fishercoder1534/Leetcode)
+* ⭐ **Leetcode Tools** - [Solutions](https://walkccc.me/LeetCode/), [2](https://leetcode.ca/) / [Company Questions](https://github.com/MysteryVaibhav/leetcode_company_wise_questions), [2](https://docs.google.com/document/d/1icaNSRq6XcWO3EOycEP9F9P8SLerBanpY3Ni_ZzCfFA/edit) / [Animations](https://github.com/MisterBooo/LeetCodeAnimation) / [Anki Cards](https://github.com/fspv/leetcode-anki) / [Videos](https://github.com/fishercoder1534/Leetcode)
 * [algorithms](https://prashantbarahi.com.np/docs/algorithms/intro) - Code Algorithms & Data Structures Tutorials
 * [VisualGo](https://visualgo.net/) - Data Structures & Algorithm Animations
 * [The Algorithms - C++](https://github.com/TheAlgorithms/C-Plus-Plus) - C++ Algorithms
@@ -568,7 +568,7 @@
 * [Accessibility Insights](https://accessibilityinsights.io/) - Fix Accessibility Issues
 * [Accessibility Cheatsheet](https://moritzgiessmann.de/accessibility-cheatsheet/) - Site Accessibility Guidelines
 * [Violating GDPR](https://www.violating-gdpr.com/) - GDPR Violation Test
-* [Color Oracle](https://colororacle.org/) or [Toptal](https://www.toptal.com/designers/colorfilter) - Color Blindness Simulator / Test
+* [Color Oracle](https://colororacle.org/), [WhoCanUse](https://www.whocanuse.com/) or [Toptal](https://www.toptal.com/designers/colorfilter) - Color Blindness Simulator / Tests
 * [Web Vitals Leaderboard](https://vitals-leaderboard.pazguille.me/) or [Lighthouse Metrics](https://lighthouse-metrics.com/) - Website Performance Tests
 * [Visual Mind AI](https://myraah.io/index.php/visualmind) - Site Visual Score
 * [Prometheus](https://prometheus.io/) - Site Metrics / [Setup](https://thanos.io/)