Everything in the catalog

Fine-grained authorization for apps, APIs and AI agents, with policy as code and an MCP gateway

Open-source web app that writes privacy policies and terms of use for mobile and web apps.

Open-source observability for LLM applications, built on OpenTelemetry

Write dated events in plain text and view them as a timeline, calendar or Gantt chart.

Typing practice that adapts lessons to your weakest keys as you type.

Block-based programming editor for making games, stories and animations, usable without logging in.

Shows what the compiler generates behind C++ features by expanding your code into explicit source.

Drag-and-drop section templates and a Markdown editor for assembling a project README.

Lints GitHub Actions workflow files in the browser using the WebAssembly build of actionlint.

Shows your public IP address with country, city and ASN details.

Playground for the Viz.js library that renders Graphviz DOT to SVG entirely with WebAssembly.

Converts ASCII art diagrams into clean SVG graphics.

Edit, simplify and convert geographic data such as Shapefile, GeoJSON and TopoJSON in the browser.

Open-source platform for building durable AI agents and workflows in TypeScript.

Turns a pasted GitHub repository URL into an interactive map of the code's architecture.

Opens 3D model files such as OBJ, STL, 3DS and glTF in the browser, with local processing noted on the page.

Single-file executable that bundles llama.cpp with Cosmopolitan Libc, so an LLM runs locally with no installation.

Stable Diffusion that runs completely in the browser through WebGPU, with no server-side inference.

Ambient sound mixer with rain, forest, cafe and noise loops for blocking distractions and relaxing.

HTML5 speed test for measuring download and upload speeds, also usable on a local network.

Image editor with layers, filters and basic drawing tools that runs as a static web page.

Converts a docker run command into docker-compose YAML.

Practise hiragana, katakana, kanji and vocabulary through short games with many themes.

Platform that turns PDFs, tables, forms and scans into structured, agent-ready data.