Open Source realtime backend in 1 file

Multi-provider, hot self-mutating coding LLM CLI with async/detached tool calls and bidirectionally communicating recursive spawn built from a strongly typed Python-first API.

Headless flex layout engine for terminal UIs.

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

Pre-indexed code knowledge graph, auto syncs on code changes, for Claude Code, Codex, Gemini, Cursor, OpenCode, AntiGravity, Kiro, and Hermes Agent — fewer tokens, fewer tool calls, 100% local

SwiftUI component for displaying rich release notes inside an app

QuickLayout is a custom-built, declarative layout library for iOS designed to work seamlessly with UIKit.

Open-Source Frontier Voice AI

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

Replace port numbers with stable, named local URLs. For humans and agents.

The easiest way to turn SVGs into interactive React 3D components

fate is a modern data client for React.

Demo of using HDR colors in CSS

Create games for Playdate using Swift.

Permission dialog for accessibility settings as seen in Codex Computer Use https://x.com/lexrus/status/2044929029334245819

Native micro Web UI for scripts and agents — super fast OS native webview with bidirectional JSON communication for agents

An extremely fast Python package and project manager, written in Rust.

OBLITERATE THE CHAINS THAT BIND YOU

A terminal emulator for the web

WebGL effects made easy.

WebGPU physics engine based on the AVBD solver

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

AI enabled pair programmer for Claude, GPT, O Series, Grok, Deepseek, Gemini and 300+ models

A lightweight sandboxing tool for enforcing filesystem and network restrictions on arbitrary processes at the OS level, without requiring a container.

High performance UI layout library in C.

Open source Ghostty-based macOS terminal with vertical tabs and notifications. Built for AI coding agents and programmability.