Code Crunch Labs Tutor

About

Code Crunch Labs Tutor is a private, on-device language coach. Hold the button, speak, and the tutor talks back — explaining in your own language and pronouncing new words in a native voice.

Everything runs inside your browser using WebGPU. Your speech is transcribed, understood, and answered entirely on your device. No audio, no text, and no conversation ever leaves your computer, and there is no account or server.

HOW IT WORKS
• Speech recognition turns what you say into text — locally.
• A language model plays the tutor and replies — locally, on your GPU.
• An LLM voice speaks the answer, using the right voice for each language 

FEATURES
• Pick "I speak" and "learning" — the tutor explains in your language and speaks the target-language words in a native-sounding voice.
• Fully offline after the one-time model download.
• Private by design: nothing is uploaded, ever.
• Supported languages: English, Spanish, French, Italian, Portuguese.

NOTE: The first time you use it, the on-device models download once (about 1.3 GB) and are cached in your browser. After that it loads in seconds. Requires a desktop browser with WebGPU (Chrome/Edge 121+).