Technical Resources

Learn to code for free. Covers HTML, CSS, JavaScript, React, Node.js, Python, data structures, algorithms, and machine learning. Earn certifications by completing projects.

A free, open-source full-stack web development curriculum. Covers HTML/CSS, JavaScript, Node.js, React, and Ruby on Rails with a hands-on project-based approach.

Free lecture notes, exams, and videos from MIT. Includes foundational CS courses like 6.006 (Algorithms), 6.824 (Distributed Systems), 6.034 (AI), and 6.046 (Design and Analysis of Algorithms).

Harvard's introduction to the intellectual enterprises of computer science. Covers C, Python, SQL, JavaScript, and web development. The most popular CS MOOC of all time.

The authoritative resource for web developers. Comprehensive documentation for HTML, CSS, JavaScript, Web APIs, and browser compatibility. Maintained by Mozilla with community contributions.

Combines multiple API documentations in one fast, searchable interface. Includes docs for React, Node.js, Python, Go, Rust, PostgreSQL, Redis, and 200+ more technologies. Works offline.

The official Rust programming language book. Covers ownership, borrowing, lifetimes, error handling, traits, generics, closures, and systems programming. Free to read online.

The world's largest code hosting platform. Collaborate on projects, contribute to open source, set up CI/CD workflows, manage issues and pull requests, and build your developer portfolio.

A virtual whiteboard for sketching hand-drawn like diagrams. Perfect for system design diagrams, architecture drawings, and technical communication. Collaborative and privacy-focused.

An interactive tool for learning, building, and testing regular expressions. Visualizes what each part of a regex pattern does with real-time highlighting, cheat sheets, and community patterns.

Create beautiful, shareable code screenshots with syntax highlighting, custom backgrounds, and themes. Perfect for sharing code snippets on social media and documentation.

The world's largest community for developers. Ask questions, share knowledge, and find answers to programming problems. The go-to place when you're stuck on a coding problem.

A constructive and inclusive social network for software developers. Share articles, tutorials, and discussions. Great for building in public and following emerging trends in the dev community.

Y Combinator's community for computer science and entrepreneurship news. High-signal discussions about technology, startups, programming languages, and research papers.

High-intensity code tutorials in 100 seconds. Covers the latest in web dev, frameworks, and developer culture with entertaining, information-dense short-form videos and deeper dives.

Full-stack web development with deep dives into TypeScript, React, Next.js, and the T3 stack. Known for opinionated, thoughtful takes on modern web development practices.

Backend engineering fundamentals with deep technical explanations. Covers database internals, networking, protocols (HTTP, WebSockets, gRPC), and backend system design in exceptional depth.

The platform for technical interview preparation. 3000+ coding problems categorized by difficulty, company, and topic. Includes contests, discussion forums, and editorial solutions.

Code practice and mentorship for 67 programming languages. Solve exercises and get feedback from experienced mentors. Perfect for learning a new language or deepening existing skills.

Community-curated roadmaps and learning paths for frontend, backend, DevOps, AI/ML, and more. Visual guides showing what to learn and in what order with resource recommendations.