diff --git a/DEVTools.md b/DEVTools.md
index e67ffe1de..cc539a143 100644
--- a/DEVTools.md
+++ b/DEVTools.md
@@ -63,6 +63,7 @@
 * [LintCode](https://www.lintcode.com/) - Coding Practice 
 * [Coding Questions](https://platform.stratascratch.com/coding) - Coding Interview Questions 
 * [Code With Mosh Courses](https://www.reddit.com/r/FREEMEDIAHECKYEAH/wiki/base64#wiki_code_with_mosh_courses)
+* [picoCTF](https://picoctf.org/) or [CTFlearn](https://ctflearn.com/) - Cyber Security Lessons
 * [DefendTheWeb](https://defendtheweb.net/) - Cyber Security Challenges
 * [Leetcode](https://leetcode.ca/) - Code Solutions / [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)
 * [Awesome Cheatsheets](https://lecoupa.github.io/awesome-cheatsheets/), [HowDoI](https://github.com/gleitz/howdoi), [OverApi](https://overapi.com/) or [Cheat Sheets](http://www.cheat-sheets.org/) - Programming Cheat Sheets
@@ -819,7 +820,8 @@ Automated Incident Response and Forensics Framework
 * [Awesome CSS](https://github.com/awesome-css-group/awesome-css) - CSS Resources
 * [Cssgr](https://cssgr.id/), [BoxBox](https://seansleblanc.itch.io/boxboxhtml), [CSSGridGenerator](https://cssgrid-generator.netlify.app/) or [Layoutit Grid](https://grid.layoutit.com/) - CSS Grid Generators
 * [Pesticide for Chrome](https://chrome.google.com/webstore/detail/pesticide-for-chrome-with/neonnmencpneifkhlmhmfhfiklgjmloi) - CSS Element Outline Extension
-* [Water.css](https://watercss.kognise.dev/) - CSS Styles Collection
+* [Water.css](https://watercss.kognise.dev/) - CSS Styles
+* [Style Stage](https://stylestage.dev/) - Modern CSS Styles
 * [USA.css](https://bennettfeely.com/usacss/) - USA CSS Style
 * [Leon's CSS](https://leonarnott.neocities.org/) or [Wordart](https://codepen.io/kathykato/details/omxPap) - CSS Text Styles
 * [Hover.CSS](https://ianlunn.github.io/Hover/) - CSS Hover Effects