Video tools

Video Caption Editor

Generate English captions for a short clip, edit the timing and download an SRT subtitle file.

Open the editor ↓
Video Caption Editor visual example: Generate English captions for a short clip, edit the timing and download an SRT subtitle file.
An illustrated example of what you can make with this tool.
01 · VIDEO & PREVIEW

Choose a video

Up to 60 MB and 120 seconds. Caption editing happens in your browser.

Auto captions support English speech in files up to 30 seconds. About 65 MB of model and runtime files load on demand.

02 · EDIT & DOWNLOAD

Edit caption timings

Set start and end times in seconds. Play the video to preview your captions.

SRT is a separate subtitle file. Import it into a compatible video editor or player.

Captioned video

Make the text part of the picture. Up to 30 seconds, 540 pixels wide and 24 fps.

Generate English captions, fix the timing and download SRT

For a short clip with English speech, generate draft captions on your device. Review the words and timing, then download an SRT sidecar or encode the captions directly into a supported video export.

Open the editor ↑

Steps

  1. Choose the source and caption method

    Open an MP4 or WebM the browser can decode. Use automatic English captions for a clip of 30 seconds or less, or pause the preview and add a cue at the playhead.

  2. Check each cue against the audio

    Correct names, numbers and punctuation. Play across the start and end of each line. Move a cue if it appears early or covers a different speaker, and keep each line short enough to read.

  3. Choose SRT or a captioned video

    Download SRT when the player supports a separate subtitle file. For always-visible captions, burn them into an eligible clip and play the final video to check caption placement and sound.

File and export limits

Input up to 60 MB and 120 seconds. Automatic English speech recognition and caption burn-in each support clips up to 30 seconds. Manual editing supports up to 100 cues. Encoding support and audio preservation depend on the browser.

Common questions

Do the translated tool pages change the recognition language?

Automatic recognition is English. You can type captions in other languages using the manual editor.

Should I keep the SRT after exporting a video?

Yes if you may need to correct captions later or offer a selectable subtitle track. Burned captions become part of the picture.

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