Static @fit checks for ordinary TypeScript layout code

🛶 Run VS Code on any machine anywhere and access it in the browser (25MB npm pkg)

The fast all-in-one Node.js toolkit

Remote control for AI coding agents. Rust + GPUI + QUIC/UDP. Available on iOS/Android

Three voice-agent backends (LiveKit, OpenAI Realtime, Google ADK Live) sharing one console interface, each instrumented for LangSmith

Custom .af video format for WebCodecs: frame-accurate playback without a video tag or third-party decoders.

Semantic search over videos using Gemini Embedding 2 or Qwen3-VL.

A deepagent to witnessing slowdowns in your test runs.

Ponyfill of experimental React concurrent stores

Elegant HTTP Networking in Swift

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

Framework to build resilient language agents as graphs.

A modern version of Monaco Editor.

Readymade evaluators for your LLM apps

Low output latency streaming HTML parser/rewriter with CSS selector-based API

Merge Python and JS code into one file that can be run in both languages.

Staging repo for development of native port of TypeScript

"Superposition" between sync and async

A WebAssembly runtime implemented in TypeScript types

Scale computer-use 2.0 with open-source drivers, cross-OS fleets, and benchmarks for training, evaluation, and data generation.

A lightweight React Hook intended mainly for AI chat applications, for smoothly sticking to bottom of messages

A UI library to animate and style streaming LLM output

SDK for implementing Langgraph in your frontend in few seconds

Comparing WebSocket, WebRTC, and WebTransport under packet loss

A virtual monitor for screen sharing

Open GenAI Stack

Utilities for working with React Suspense

Things you can do with the token embeddings of an LLM