Code typing practice, quick races and multiplayer rooms.
The 1st Collaborative AI Design Agent Workspace. Local-first and open source. Create motion, prototypes, websites, apps, dashboards, presentations, images, and videos with your team and AI agents. Share work, exchange feedback, and iterate together in one workspace.
The repository for high quality TypeScript type definitions.
The most customizable typing website with a minimalistic design and a ton of features. Test yourself in various modes, track your progress and improve your speed.
Mockoon is the easiest and quickest way to run mock APIs locally. No remote deployment, no account required, open source.
Create beautiful diagrams just by typing notation in plain text.
TypeScript's 1:1 validator, optimized from editor to runtime
The smartest way to learn touch typing and improve your typing speed.
pyright fork with various type checking improvements, improved vscode support and pylance features built into the language server
nw_wrld is an event-driven sequencer for triggering visuals using web technologies. It enables users to scale up audiovisual compositions for prototyping, demos, exhibitions, and live performances. Users code their own visual modules, then orchestrate them using the project's native UI composer.
Type-safe FFmpeg bindings for Python & TypeScript β filters, typing, and docs
Node Rest and Http Clients with typings for use with TypeScript
Up to date Discord API Typings, versioned by the API version
TypeScript bot detection: catch WebDriver, headless Chrome, Playwright/Puppeteer, robotic mouse/typing, datacenter IPs, JA3 TLS mismatch & timezone spoofing β browser + Node.
AI-native infinite-canvas design tool: describe an app, get multi-screen HTML designs on an infinite canvas, click through them as a prototype, and let your local coding agent read and write the canvas over MCP.
Wireframing tool where real UI components render as hand-drawn sketches
Games above the Claude Code prompt: snake, Tetris, 2048, Minesweeper, Flappy, Pong, a typing test and Space Invaders, plus a pet that grows as Claude tests, commits and edits
Fake REST APIs with live JSON. Docs, playground, and ready-to-use endpoints for frontend prototyping.
An open source prototype sandbox for designers and product managers who build.