Speech to text, on your device

Transcribe anything, no minute limits

Transcription services meter you by the minute and want your recording on their servers. This one runs OpenAI's Whisper model inside your browser tab, so interviews, lectures and client calls are transcribed without ever leaving your device — and without a meter.

Preparing the transcriber…

Nothing uploaded

Confidential interviews and client calls stay on your machine.

Subtitles included

Export .srt with timestamps, ready for any video editor.

90+ languages

The multilingual model transcribes far beyond English.

How local transcription works

Why is there a download the first time?

The speech recognition model itself has to reach your device before it can run. It is fetched once, cached by your browser, and reused instantly on every later visit.

How long does a recording take?

Roughly real-time to a few times faster on a modern laptop with the fast model. Long recordings are processed in 30-second chunks, so progress is steady rather than all-at-once.

Which files can I transcribe?

Any audio or video your browser can decode — MP3, WAV, M4A, OGG, MP4, WebM and more. The audio track is extracted and resampled automatically.

How accurate is it?

Whisper is strong on clear speech and holds up well with accents. Heavy background noise, crosstalk and very quiet recordings are where any model, local or cloud, starts to struggle.

Safe data processing

Your files stay yours

AllConverter is built privacy-first: the entire pipeline is local, so sensitive documents, photos and recordings never leave your machine.

Processed on your device

Every conversion runs inside your browser tab using local WebAssembly engines.

No uploads, ever

Your files are never sent to a server, so there is nothing for us to store or lose.

Nothing retained

Results live in temporary memory and vanish the moment you close the tab.

No account required

No sign-up, no tracking of file contents, no limits placed on your work.