Whisper is OpenAI's state-of-the-art speech recognition model, now running entirely in your browser. It supports 99 languages with automatic language detection, and produces highly accurate transcriptions with word-level timestamps.

Choose from three model sizes: Tiny (~40MB, fastest), Base (~76MB, good balance), or Small (~240MB, best quality). The model automatically uses WebGPU when available, falling back to WASM for broad compatibility. Audio is processed in a background thread so the UI stays responsive.

Audio never leaves your browser — all processing happens locally. Export transcriptions as plain text, SRT subtitles, or WebVTT captions.