Utilities
Everyday tools, right in your browser.
Convert and compress files, extract audio, subtitles and transcripts, and summarise text. Everything runs on your device — no uploads, no accounts and no paid cloud AI APIs.
Your file is processed entirely in this browser tab with ffmpeg.wasm. Nothing is uploaded to a server. The media engine (~32 MB) downloads once the first time you process a file. Limit: 320 MB.