Agent Reinforcement Trainer: train multi-step agents for real-world tasks using GRPO. Give your agents on-the-job training. Reinforcement learning for Qwen2.5, Qwen3, Llama, Kimi, and more!

MLT Multimedia Framework

Autonomous coding agent right in your IDE, capable of creating/editing files, executing commands, using the browser, and more with your permission every step of the way.

Kimi K2 is the large language model series developed by Moonshot AI team

Runtime Agnostic JS utils

🧵 String Case Utils

🌆 Elegant CLI Builder

Generate QR Code universally, in any runtime, to ANSI, Unicode or SVG.

👂 Elegant HTTP Listener

🚇 Tunnel your local HTTP(s) server to the world! powered by Cloudflare Quick Tunnels.

🎨 Easily generate color shades for themes

Debounce promise-returning & async functions.

🔗 URL utils for humans

Generate types and markdown from a config object.

📦 A unified JavaScript build system

🌊 Assign default properties recursively

😱 A better fetch API. Works on node, browser and workers.

🐨 Elegant Console Logger for Node.js and Browser

Runtime TypeScript and ESM support for Node.js

What if Cursor, Github Copilot and Windsurf could actually interact with your browser? 💬 Comment on any DOM element 🧠 We send the real context to Windsurf ⚡ Save time manually selecting files Setup…

Open source virtual desktops for AI agents

Secure AI-powered meeting notetaker that runs on your device and keeps your data private.

A tunneling client for Pangolin

Use tRPC with bun and fun

🔥 Open Source Browser API for AI Agents & Apps. Steel Browser is a batteries-included browser instance that lets you automate the web without worrying about infrastructure.

Magnitude achieves SOTA 94% on WebVoyager benchmark

An image processing library written entirely in JavaScript for Node, with zero external or native dependencies.

Resize image in browser with high quality and high speed

Record LLM calls and play them back during tests (BAML, python, pytest)