Web development resources for free

Mega Thread 🧵 👇🏻

1️⃣ Online learning platforms 📘

- Udemy
- FreeCodeCamp
- Treehouse
- Frontend masters
- Coursera
- Traversy media
- SoloLearn
- Codecademy
- Udacity
- Alison
- Code college
- LinkedIn Learning
- Skillshare
- EdX

2️⃣ Editors and share code snippets ✍🏻

- PlayCode
- JSFiddle
- CodePen
- StackBlitz
- JSBin
- Codesandbox
- Codeinterview .io
- godbolt .org
- wandbox .org
- carbon .now.sh
- pastebin .com
- ideone .com
- ide .judge0.com

3️⃣ Documentations and notes 📄

- w3 schools
- mdn
- Devdocs
- geeksforgeeks
- tutorialspoint
- javapoint

4️⃣ Competitive programming 👩‍💻

- CodeChef
- HackerEarth
- HackerRank
- AlgoExpert
- LeetCode
- TopCoder
- Codewars
- Codeforces
- Coderbyte
- Exercism