Free
References · Documentation & Learning
The definitive reference for HTML, CSS and JavaScript, by Mozilla.
documentationhtmlcssjavascript
Discover the 25 best free tools for documentation & learning. Free-to-use, no credit card or subscription required. Curated, compared, and updated for developers.
| Tool | Pricing | Platforms | Top Strength | Link |
|---|---|---|---|---|
| MDN Web Docs | free | web | The definitive reference for HTML, CSS and JavaScript, by Mozilla. | Details → |
| DevDocs | free | web | 200+ official docs (MDN, languages, frameworks) in one fast, offline-capable UI | Details → |
| Stack Overflow | free | web | The largest Q&A community for programmers. | Details → |
| DEV Community | free | web | Community where developers write articles and share knowledge. | Details → |
| Hashnode | free | web | Blogging platform for developers with custom domains. | Details → |
| freeCodeCamp | free | web | Completely free, structured curriculum from HTML to full-stack projects | Details → |
| The Odin Project | free | web | Free, opinionated full-stack path (Ruby or JS) built around real projects | Details → |
| roadmap.sh | free | web | Best visual maps of what to learn (frontend, backend, DevOps, AI) and in what order | Details → |
| Exercism | free | web | Free coding practice and mentoring in 70+ languages. | Details → |
| Codewars | free | web | Community-driven coding kata platform across many languages. | Details → |
Showing top 10 of 25. Browse the full grid below.
References · Documentation & Learning
The definitive reference for HTML, CSS and JavaScript, by Mozilla.
References · Documentation & Learning
Fast, offline-capable API documentation browser combining 100+ references.
Communities · Documentation & Learning
The largest Q&A community for programmers.
Communities · Documentation & Learning
Community where developers write articles and share knowledge.
Communities · Documentation & Learning
Blogging platform for developers with custom domains.
Courses & Tutorials · Documentation & Learning
Non-profit curriculum with free courses and certifications.
Courses & Tutorials · Documentation & Learning
Free, open-source full-stack web development curriculum.
Courses & Tutorials · Documentation & Learning
Community-driven developer roadmaps, guides and skill assessments.
Practice & Challenges · Documentation & Learning
Free coding practice and mentoring in 70+ languages.
Practice & Challenges · Documentation & Learning
Community-driven coding kata platform across many languages.
Practice & Challenges · Documentation & Learning
Annual series of fun programming puzzles every December.
Practice & Challenges · Documentation & Learning
Mathematical and computational programming problems.
Courses & Tutorials · Documentation & Learning
Beginner-friendly web development tutorials with try-it editors.
Cheatsheets · Documentation & Learning
Rico's cheatsheets: concise cheatsheets for dozens of tools and languages.
Cheatsheets · Documentation & Learning
Collection of developer cheatsheets for many languages and tools.
Cheatsheets · Documentation & Learning
Clean, searchable cheat sheet collection for developers.
References · Documentation & Learning
Official repository of Internet RFC specifications.
Communities · Documentation & Learning
Y Combinator's tech news and discussion community.
Cheatsheets · Documentation & Learning
Community-maintained, practical examples for every CLI command.
References · Documentation & Learning
The Modern JavaScript Tutorial — the deepest free JS reference from basics to advanced browser APIs.
References · Documentation & Learning
The most-starred system design study guide — scalable architectures, trade-offs and exercises, free and open source.
Practice & Challenges · Documentation & Learning
Free, curated interview prep: algorithms study plans, behavioral questions and resume advice by ex-Facebook engineers.
References · Documentation & Learning
The largest curated directory of free public APIs — 1,400+ entries across 40 categories with auth requirements noted.
Courses & Tutorials · Documentation & Learning
Channel YouTube Sandhika Galih — tutorial web development berbahasa Indonesia paling populer, dari HTML sampai framework.
Courses & Tutorials · Documentation & Learning
Blog tutorial open-source berbahasa Indonesia — Linux, Python, JavaScript dan dasar pemrograman, gratis selamanya.