📘 dict subclass with keylist/keypath support, built-in I/O operations (base64, csv, html, ini, json, pickle, plist, query-string, toml, xls, xml, yaml), s3 support and many utilities.

Modern UI Library for Video Players in React. @shaka-project for player engine and @shadcn-ui for installation. Beautifully designed & accessible components, packed with hooks.

Scalable open-source game backend server: multiplayer, matchmaking, leaderboards, chat, and social features for games.

An agent-first linter for Tailwind design systems. Write design system rules that agents can verify.

cn is a new engine for Tailwind class merging and conflict resolution. It replaces tailwind-merge and clsx. Same APIs. Full parity. And it is 30× faster.

Pure-Crystal implementation of gRPC

A next generation HTTP client for Python. 🦋

Roda-inspired HTTP framework for Crystal, providing routing, sessions, forms, etc

The Python implementation of Connect: Protobuf RPC that works.

JavaScript/TypeScript-native, low-boilerplate, object-capability RPC system

The fastest memoizing and caching Python library written in Rust.

Use your most capable model to audit your codebase and write plans for cheaper models to execute.

Main Liquibase Source

In-memory fake Redis for Python tests: a drop-in replacement for redis-py and valkey-py, with no server to run. Emulates Redis, Valkey, DragonflyDB, KeyDB and KiviDB.

⏰ 🔥 A TCP proxy to simulate network and system conditions for chaos and resiliency testing

A fast, simple and lightweight Bloom filter library for Python, implemented in Rust.

Runtime TypeScript and ESM support for Node.js

Incredibly fast JavaScript runtime, bundler, test runner, and package manager – all in one

The Programming Language for Agents

A task runner that works well with poetry or uv.

Ultra-fast networking with Kernel TLS support for asyncio and Python

dev tools, env vars, task runner

Open-Source Frontier Voice AI

An open-source cross-platform alternative to AirDrop

Console-based GLSL Sandbox for 2D/3D shaders

🚚 Video.js v10 has moved to videojs/video.js

Fast, accurate & comprehensive text measurement & layout

Turn detection for full-duplex dialogue communication

Voice Activity Detector (VAD) : low-latency, high-performance and lightweight

Open-source framework for conversational voice AI agents