add captions to video

Add captions to video online

Creator-style captions for silent scrolling. Use SubtitleRocket to add bold creator captions to a video in a browser editor. Review each caption line, try a visual template, and export social captions with emphasis, outlines, or stacked text. You can download a watermarked result for free before choosing Pro or Max.

Open the editorBrowse tools

Drop a video here

MP4, MOV, or WebM · up to 15 min free

Your video stays in the browser. Only the extracted audio is sent for transcription.

Free: 720p MP4 with a small watermark, 90 transcription minutes/month, no signup to start. Pro from $7/month: clean 1080p, SRT/VTT export. Your video file never leaves the browser - only the extracted audio is sent for transcription.

Best for
  • vertical video hooks
  • silent autoplay feeds
  • creator-style subtitle templates
  • small businesses and social media managers
Not built for
  • closed-caption compliance review
  • advanced motion graphics
How it works
Inputs: MP4 video, MOV video, WebM video, spoken audio inside the uploaded clip.
Outputs: social captions with emphasis, outlines, or stacked text, editable caption segments, free 720p watermarked download, 1080p clean export with a membership.
  1. Upload an MP4, MOV, or WebM file. The editor opens without forcing an account first.
  2. Use SubtitleRocket to add bold creator captions to a video, then review the generated caption lines.
  3. Adjust wording, timing, and visual style before exporting.
  4. Download social captions with emphasis, outlines, or stacked text. Free exports include a small watermark; clean exports need a membership.
What you get
Concrete inputs, outputs, and export limits for this workflow.
AreaDetails
InputMP4 video, MOV video, WebM video, spoken audio inside the uploaded clip
Editable resultGenerated caption segments that can be corrected before export
Free export720p captioned MP4 with a small watermark
Clean export1080p no-watermark MP4 with a Pro or Max membership
Best format fitsocial captions with emphasis, outlines, or stacked text

FAQ

You can open the editor, generate captions, edit text, preview styles, and export with a watermark for free. A clean no-watermark 1080p export needs a Pro or Max membership.

No. You can start in the editor first. Sign in with a one-time email code when you want a membership, account recovery, or a clean export.

SubtitleRocket is built for MP4, MOV, and WebM short clips up to 15 minutes. The workflow is tuned for TikTok, Reels, Shorts, podcast clips, and talking-head videos.

Yes. Generated caption lines are editable, and you can switch visual templates before downloading the final video.

It covers the caption side completely: generate the text from speech, edit every line, pick a visual template, and export the captioned MP4. What it deliberately leaves out is general video editing; cuts, transitions, and music belong in your editor of choice.

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