Transcribe MKV video to text

Convert MKV video to text free. Works with OBS recordings and large MKV files — no upload, transcription runs locally in your browser.

100% free No account needed Nothing uploaded

Drop your video or audio file here

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MP4 · MOV · WebM · MKV · AVI · MP3 · WAV · M4A and more

🔒 100% private — transcription runs in your browser. Your file is never uploaded.

MKV is a favorite for OBS recordings and archived video, but most online transcription tools reject it or choke on the file size. FreeTranscribe handles MKV in your browser with a built-in decoder fallback — no conversion step needed.

And because there is no upload, multi-gigabyte-adjacent recordings don’t spend an hour on a progress bar before transcription even starts.

How it works

  1. Drop your file

    Nothing is uploaded — the file stays on your device the whole time.

  2. AI transcribes locally

    OpenAI’s Whisper model runs in your browser — no server ever sees your file.

  3. Copy or download

    Plain text, or timestamped SRT / VTT subtitles ready to use anywhere.

Frequently asked questions

Why do other sites reject MKV files?

MKV is a container many web tools never added support for. FreeTranscribe includes an FFmpeg-based decoder (running in your browser via WebAssembly) specifically for formats like MKV and AVI.

Can I transcribe OBS recordings?

Yes — OBS’s default MKV output works. Drop the file in and the audio track is extracted automatically.

Does it pick the right audio track?

The first audio track is used. If your recording has separate mic/desktop tracks, remux to a single track for best results.

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