Material UI: Comprehensive React component library that implements Google's Material Design. Free forever.

Set up a modern web app by running one command.

Promise based HTTP client for the browser and node.js

JavaScript 3D Library.

Makes your AI agent think like the laziest senior dev in the room. The best code is the code you never wrote.

Node.js JavaScript runtime ✨🐢🚀✨

Coding articles to level up your development skills

The React Framework

JavaScript Style Guide

Java 面试 & 后端通用面试指南，覆盖计算机基础、数据库、分布式、高并发、系统设计与 AI 应用开发

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

The agent harness performance optimization system. Skills, instincts, memory, security, and research-first development for Claude Code, Codex, Opencode, Cursor and beyond.

The library for web and native user interfaces.

Create polished demo videos without editing skills. Mac/Windows/Linux

The open-source alternative to Claude Cowork (powered by opencode)

One second to read GitHub code with VS Code.

The first open-source harness builder for AI coding. Make AI coding deterministic and repeatable.

The local-first database that runs on every JS runtime and replicates with your existing backend - no vendor, no lock-in - https://rxdb.info/

Official React bindings for Redux

Lightweight, user-friendly onboarding tour library

Modern and easy to use SQL client for MySQL, Postgres, SQLite, SQL Server, and more. Linux, MacOS, and Windows.

Mobile and Web client for Codex and Claude Code, with realtime voice, encryption and fully featured

7.4 billion tokens per month. 34 free LLM providers. 635 free model endpoints. All behind one /v1 endpoint, plus any custom OpenAI-compatible endpoint. Smart routing, automatic failover, encrypted keys. Personal experimentation only.

✍ It has never been so easy to document your things!

Dead simple Object schema validation