One catalog of everything installable: language runtimes, utility tools, local AI models and skills. Each entry installs into this browser and runs on your device rather than on a server.
Python, JavaScript, C, C++, Ruby, PHP, R, Lua, Clojure, SQL and more, each compiled to WebAssembly and cached after the first install. C and C++ compile and link in the browser through clang and wasm-ld before executing. Once installed, a runtime works offline.
Over 160 open models run on WebGPU through WebLLM. Weights download once into Cache Storage and the model is then usable with no network, no API key and no quota. Download progress is shown per model, and installed models appear in the normal model picker alongside hosted ones.
Utility tool plugins give the assistant exact functions to call rather than approximating them: regular expressions, diffing, JSON and CSV handling, hashing, identifiers, JWT decoding, colour and contrast, dates and unit conversion. Skills install from any public repository that publishes the standard marketplace manifest, and the full instruction file is shown before anything is installed.
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