404 FORUM

=== General Programming (Multiple Languages) ===

1. freeCodeCamp – https://www.freecodecamp.org/
2. The Odin Project – https://www.theodinproject.com/
3. Codecademy (Free Courses) – https://www.codecademy.com/catalog/all?filter=free
4. CS50 by Harvard (edX) – https://cs50.harvard.edu/x/
5. MIT OpenCourseWare (Computer Science) – https://ocw.mit.edu/courses/electrical-engineering-and-computer-science/

=== Python ===

1. Python for Beginners (official) – https://www.python.org/about/gettingstarted/
2. Real Python (Free Tutorials) – https://realpython.com/
3. LearnPython – https://www.learnpython.org/
4. Programiz Python – https://www.programiz.com/python-programming
5. Google's Python Class – https://developers.google.com/edu/python

=== Web Development ===

1. Mozilla Developer Network (MDN) – https://developer.mozilla.org/en-US/
2. W3Schools – https://www.w3schools.com/
3. HTML Dog – https://htmldog.com/
4. Frontend Masters (Free Intro Courses) – https://frontendmasters.com/learn/
5. Scrimba (Free Web Dev Path) – https://scrimba.com/learn/frontend

=== JavaScript / Frontend ===

1. JavaScript.info – https://javascript.info/
2. Eloquent JavaScript (book online) – https://eloquentjavascript.net/
3. JavaScript30 by Wes Bos – https://javascript30.com/
4. Codewell (HTML/CSS projects) – https://www.codewell.cc/
5. CSS Tricks – https://css-tricks.com/

=== Practice & Challenges ===

1. Exercism – https://exercism.org/
2. HackerRank – https://www.hackerrank.com/domains/tutorials/10-days-of-javascript
3. Codewars – https://www.codewars.com/
4. LeetCode – https://leetcode.com/problemset/all/
5. Project Euler – https://projecteuler.net/