Auto caption generator for social video

Make short, punchy captions for social video free. AI writes timed SRT captions a few words at a time, in your browser, with no upload.

100% freeNo account neededNothing 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.

Most people watch social video with the sound off, so captions decide whether they keep watching. FreeTranscribe writes captions a few words at a time, the style that works on Reels, Shorts, and TikTok, and exports them as an SRT file.

This page starts in the Short caption style. Switch to Standard or Single line any time after transcribing.

Getting captions into your video

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, so no server ever sees your file.

  3. Copy or download

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

Frequently asked questions

How is the Short style timed?

Each spoken phrase is split into chunks of a few words, and each chunk gets its share of the phrase’s time, so captions change at a natural pace.

Can I style the captions (fonts, colors, animation)?

Styling happens in your video editor. FreeTranscribe gives you accurate, timed text; your editor makes it look good.

Is it free for commercial videos?

Yes. Use the captions anywhere, with no watermark or credit required.