freeCodeCamp.org's open-source codebase and curriculum. Learn math, programming, and computer science for free.

Learn how to design large-scale systems. Prep for the system design interview. Includes Anki flashcards.

The library for web and native user interfaces.

📝 Algorithms and data structures implemented in JavaScript with explanations and links to further readings

A book series (2 published editions) on the JS language.

The React Framework

💯 Curated coding interview preparation materials for busy software engineers

A list of SaaS, PaaS and IaaS offerings that have free tiers of interest to devops and infradev

Clean Code concepts adapted for JavaScript

web development for the rest of us

The Patterns of Scalable, Reliable, and Performant Large-Scale Systems

A long list of (advanced) JavaScript questions, and their explanations ✨

Everything you need to know to get the job.

Curated list of design and UI resources from stock photos, web templates, CSS frameworks, UI libraries, tools and much more

💻 A fully functional local AWS cloud stack. Develop and test your cloud & Serverless apps offline

A JS library for predictable global state management

A list of helpful front-end related questions you can use to interview potential candidates, test yourself or completely ignore.

The best React-based framework with performance, scalability and security built in.

Declarative routing for React

The repository for high quality TypeScript type definitions.

⭐️ Companies that don't have a broken hiring process

⏰ Day.js 2kB immutable date-time library alternative to Moment.js with the same modern API

Cheatsheets for experienced React developers getting started with TypeScript

👩‍💻👨‍💻 Awesome cheatsheets for popular programming languages, frameworks and development tools. They include everything you should know in one single file.

📋 React Hooks for form state management and validation (Web + React Native)

The zero configuration build tool for the web. 📦🚀

🍃 JavaScript library for mobile-friendly interactive maps 🇺🇦

React Hooks — 👍

🌐 Front End interview preparation materials for busy engineers (updated for 2025)

Flight rules for git