Books4820 dl
Free Programming Books — 300+ Languages
The EbookFoundation mega-list: thousands of legally free programming books, courses and cheat sheets in 30+ languages. Licence: CC BY 4.0.
Tool 07 · Assets
Free Drive Vault
UI kits, developer boilerplates, AI prompt megapacks and cheat sheets — all free, all hosted on Drive, no account required.
Books3611 dl
Project Gutenberg — 75,000 Free eBooks
Public-domain classics in EPUB, Kindle and plain text. No account, no paywall, fully legal to download and share.
Books2140 dl
OpenStax — Peer-Reviewed Textbooks
University-level textbooks (maths, physics, psychology, economics) free as PDF. Licence: Creative Commons Attribution.
Books2755 dl
MIT OpenCourseWare
Full MIT course materials — lecture notes, problem sets, exams and video lectures. Licence: CC BY-NC-SA.
Books1890 dl
arXiv — Open Research Preprints
Two million open-access papers in CS, AI, maths and physics. Download the PDF of almost any modern ML paper.
Dev5210 dl
System Design Primer
The most-starred system design study guide on GitHub: diagrams, flashcards and interview walkthroughs. Licence: CC BY 4.0.
Dev6402 dl
Developer Roadmaps
Step-by-step visual roadmaps for frontend, backend, DevOps, AI and more — the community standard for learning paths.
Dev4470 dl
Public APIs Directory
1,400+ free public APIs sorted by category with auth and CORS details — perfect fuel for side projects. Licence: MIT.
Dev2985 dl
The Odin Project — Full-Stack Curriculum
A complete, genuinely free full-stack curriculum with real projects. Open-source and community maintained.
Dev7130 dl
freeCodeCamp — Certifications
Thousands of hours of interactive coding lessons plus free verified certifications. Non-profit, open-source.
Dev5340 dl
MDN Web Docs
The reference for HTML, CSS, JavaScript and Web APIs. Content licensed CC BY-SA, usable offline via DevDocs.
Dev2260 dl
DevDocs — Offline API Documentation
Bundles 100+ documentation sets into one fast searchable offline app. Open-source (MPL 2.0).
Dev1970 dl
Node.js Best Practices
80+ battle-tested Node.js practices on error handling, security, testing and production readiness. Licence: CC BY-SA.
Dev1615 dl
web.dev — Performance Playbook
Google's official guides on Core Web Vitals, caching, image optimisation and Lighthouse scoring.
Design3980 dl
Lucide Icons — 1,500+ Icons
Clean, consistent open-source icon set with React, Vue and Svelte packages. Licence: ISC — free commercially.
Design3120 dl
Heroicons by Tailwind Labs
Hand-crafted outline and solid SVG icons built for Tailwind projects. Licence: MIT.
Design2410 dl
Phosphor Icons — 9,000 Variants
Six weights of a flexible icon family, downloadable as SVG or webfont. Licence: MIT.
Design2085 dl
Tabler Icons — 5,800 Free SVGs
Pixel-perfect stroke icons with a figma library and web font. Licence: MIT.
Design6890 dl
Google Fonts
1,700+ open-source font families (Space Grotesk, Inter, JetBrains Mono included) free for commercial work.
Design2740 dl
unDraw — Open Illustrations
Recolourable SVG/PNG illustrations, free for any use with no attribution required.
Design1930 dl
Coolors — Palette Generator
Generate, browse and export colour palettes as CSS, SVG or PDF. Free tier, no signup needed to browse.
Design1580 dl
Excalidraw — Whiteboard & Diagrams
Open-source hand-drawn style diagramming tool (MIT). Great for architecture sketches and exportable SVGs.
AI8240 dl
Awesome ChatGPT Prompts
The canonical curated prompt collection — hundreds of role-based prompts you can copy straight in. Licence: CC0.
AI3460 dl
OpenAI Cookbook
Official open-source recipes for embeddings, RAG, function calling and evaluation, with runnable notebooks. Licence: MIT.
AI5720 dl
Hugging Face — Models & Datasets
Hundreds of thousands of open-weight models and datasets, plus free inference playgrounds.
AI3010 dl
Ollama — Run LLMs Locally
One-command local model runner for Llama, Mistral, Gemma and more. Fully offline, MIT licensed.
AI4190 dl
Stable Diffusion WebUI
The most widely used open-source image-generation interface, with full ControlNet and LoRA support. Licence: AGPL.
AI1770 dl
Papers with Code
Every major ML paper paired with its open-source implementation and benchmark leaderboards.