Best free coding resources in 2026: freeCodeCamp (3,000+ hours, HTML/CSS/JS/Python, project-based, completely free), The Odin Project (full-stack web dev zero to job-ready), CS50P Harvard (most rigorous free Python course, via edX/YouTube), Automate the Boring Stuff with Python (free at automatetheboringstuff.com), Kaggle Learn (Python/SQL/ML micro-courses), CS50x Harvard (most widely taken CS course globally, free to audit), javascript.info (comprehensive JS resource), MDN Web Docs (definitive HTML/CSS/JS reference). One resource, finish it, build something with each skill.