For creators editing on a deadline

An AI Video Editor Built for Captions

Every video editor AI toolkit promises speed. SubsVideo delivers it for the one editing job that actually eats your evening: subtitles.

Caption your clip free See how it fits your edit
Editor's hands on a laptop keyboard at night with a video timeline and caption track glowing on screen
What actually matters

Where a subtitle-first AI video editor wins

Full timelines are for the cut. This is for the part every video editor AI feature list buries on page three.

Paste, don't upload

Drop in a transcript and skip the render queue entirely. No file upload, no account, no waiting on a cloud job to finish.

Timed to the line

The AI reads your script's rhythm and sets each caption's duration to reading speed (cps), not a flat few seconds per sentence.

Breaks that respect the sentence

Line breaks land between ideas, not mid-thought. Two lines max, sized so a viewer finishes reading before the cut.

Style before you export

Pick a caption look and position, top, middle, or bottom, and see it sitting on your actual frame before committing to a file.

Export where it plays

Standards-compliant SRT or VTT, or copy the styled captions straight into CapCut, Premiere, or your player of choice.

Translate without re-timing

Once your captions are timed, carry them into another language without redoing the sync work from scratch.

How it fits your edit

Where SubsVideo sits in your existing cut

You're probably not replacing your video editor AI stack. You're adding the one step it still makes you do by hand.

  1. 1

    Finish the cut

    Trim and arrange your footage in whatever tool you already use, CapCut, Descript, Premiere, or a phone editor.

  2. 2

    Grab the transcript

    Export or copy the script from your recording software, or write out what's said in the finished cut.

  3. 3

    Paste it into SubsVideo

    No upload, no sign-up. The transcript goes in, timed captions come out in the browser.

  4. 4

    Review the timing

    The AI handles most of the line-breaking and pacing. Skim it once for the handful of lines worth adjusting by hand.

  5. 5

    Export and drop it back in

    Pull an SRT or VTT into your editor, or copy the styled captions straight into your publishing tool.

The job most editors treat as an afterthought

Captions built for reading speed, not a stopwatch

Most timelines let you drag a caption box and eyeball the duration. That works until a line flashes for eight-tenths of a second or lingers three beats past its sentence. SubsVideo reads the actual pacing of your script and sets duration by reading speed (cps), the number that decides whether a line gets finished before it disappears.

  • Line breaks that land between ideas, not mid-word
  • Minimum display duration enforced automatically
  • Two-line cap so nothing crowds the frame
Editor reviewing subtitle timing on a widescreen monitor in a small home studio
For the version that plays on mute

Readable with the sound off, first

A clip that gets cut down for social loses its sound by default. The caption is the only thing carrying the line. SubsVideo styles for that reality: high-contrast text, a size that survives a feed thumbnail, and positioning that clears whatever the platform stacks at the bottom of the frame.

  • Presets sized for TikTok, Reels, and Shorts safe zones
  • Contrast that holds up over busy footage
  • One style applied across a whole batch of clips
Woman watching a vertical video clip on her phone with the sound off in a busy coffee shop
Common questions

Video editor AI, and where SubsVideo fits

Is SubsVideo a full AI video editor, like CapCut or Descript?
No, and it doesn't try to be. SubsVideo doesn't cut footage, add effects, or manage a timeline. It does one job, turning a transcript into timed, styled captions, faster than a full editor's caption feature usually lets you.
Is it free to use?
The core captioning workflow is free, with no sign-up required to paste a transcript and get timed captions back. There's no account wall between you and a finished SRT or VTT file.
How accurate are the captions?
As accurate as the transcript you paste in. SubsVideo handles the timing, line breaks, and pacing; it doesn't guess at words the way auto-transcription can. Give it a clean script and the captions come out clean.
What's the learning curve like?
About one clip's worth. Paste a transcript, pick a style, check the preview, export. There's no timeline to learn and no settings menu to dig through before your first caption looks right.
What formats can I export?
Standards-compliant SRT and VTT, plus a copy option for pasting styled captions directly into an editor like Premiere or CapCut without a file round-trip.
Do I still need to review the AI's work?
Yes, and that's by design. The AI handles the bulk of timing and line-breaking; a quick read-through catches the handful of lines worth adjusting by hand before you export.
Can I use this alongside another AI video editor?
That's the common case. Finish your cut wherever you already work, then paste the transcript into SubsVideo for the captioning pass most editors handle as an afterthought.

Add the Captions Your Editor Skips

Paste a transcript, get timed captions back in seconds. No upload, no account, no render queue to wait on.

Caption your clip free Read the FAQ
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