Free browser workflow

Trim Video Online, Then Add Subtitles

Cut your clip with any free browser trimmer, then paste the transcript here for subtitles timed to the exact word.

Caption your clip free See the free trim options
Editing bay close-up of hands trimming a video clip on a laptop timeline
The right order

Why trim first, caption second

Trimming and captioning are two separate jobs. Doing them in this order saves you from re-timing captions after a later re-cut.

Cut it anywhere

Your phone's gallery editor, CapCut, or a browser trimmer, any tool that exports a shorter MP4 or MOV file works fine as the first step.

Get the length right first

Trim to the platform you're posting on before you caption. A shorter, tighter clip means shorter, more readable caption lines.

Paste, don't upload

Once your clip is cut, drop its transcript into SubsVideo. No file upload, no account, no render queue to sit and wait on.

Timed to the frame

The AI reads your script's rhythm and places each line on its own beat, not a flat few seconds per sentence regardless of pacing.

Style that matches your clip

Pick a caption look, set the position top, middle, or bottom, and see it on the frame before you export a single file.

Export where it plays

Download standards-compliant SRT or VTT, or copy the styled captions straight into YouTube, Premiere, CapCut, or your player.

The workflow

From long recording to posted clip

Four steps. Most of them are free and finished before you ever open SubsVideo.

  1. 1

    Trim the clip

    Cut your recording down with your phone's editor, CapCut, or any free browser trimmer, then export the shorter file.

  2. 2

    Copy the transcript

    Pull the script from your recording software, or write out what's said in the trimmed segment.

  3. 3

    Paste it into SubsVideo

    Drop the transcript in, pick a caption style, and watch the AI time each line to the audio's rhythm.

  4. 4

    Export and post

    Download SRT or VTT, or copy the styled captions straight into your editor before you publish.

Use case

A 40-minute webinar becomes a 90-second clip

A course creator pulls the strongest three minutes out of a live session and trims it down with a free browser tool. She pastes the trimmed segment's script into SubsVideo, and the captions land in place before the export finishes, ready for a landing page or a follow-up email.

  • Works from any transcript, not just a SubsVideo recording
  • No sign-up needed to try a single clip
  • Styled captions can match the original brand colors
Try it on your clip
Laptop screen showing a video editing timeline with a trimmed clip segment highlighted in coral
Use case

One long interview, five captioned shorts

A creator trims one recording into five short segments with CapCut, then runs each segment's transcript through SubsVideo on its own. Every clip gets its own timed captions in the same coral-accented style, ready for Reels, Shorts, or TikTok.

  • Reuse the same caption style across a whole batch of clips
  • Captions still read on mute, where most shorts get watched first
  • Translate the same script into 13 languages for wider reach
Caption your shorts
Home studio desk with a phone showing a short vertical video next to a laptop editing timeline
Common questions

Trimming and captioning, answered

Does SubsVideo trim or cut my video file?
No. SubsVideo works from a transcript and generates timed, styled captions, it doesn't shorten the video itself. Trim the clip first with your phone's editor, CapCut, or a free browser trimmer, then paste the script here.
What's the fastest free way to trim a video online?
Your phone's built-in editor or CapCut's free trim tool both handle a quick cut with no sign-up. For a browser-only option, most online editors offer a basic trim step before export.
Do I need to upload my video to SubsVideo?
No. You paste the transcript, and the styling and timing happen in the browser. The video file itself never has to leave your device.
What file formats does SubsVideo export?
Standards-compliant SRT or VTT, plus a copy option for pasting styled captions straight into an editor like Premiere or CapCut.
Can I caption a clip that's already been trimmed for TikTok or Reels?
Yes, that's the most common case. Paste the transcript for the trimmed segment and pick a caption style sized to read on mute.
Does trimming a clip change the reading speed of its captions?
It can. A shorter clip leaves less time per line, so keep sentences tight when you write the transcript for a fast-cut segment.
Is there a length limit on the transcript I can paste?
SubsVideo handles anything from a 15-second clip to a full webinar segment. Longer transcripts just take a little more scrolling to review.
Can I translate the captions after I trim and caption a clip?
Yes. Once your captions are timed, translate them into any of SubsVideo's 13 supported languages without redoing the timing.
What if I trim my video after I've already generated captions?
Re-paste the transcript for the new, shorter clip and generate again. Captions are timed to the text you paste, so a re-cut needs a fresh pass rather than a manual drag of the old timing.

Trim your clip, then caption it free

No sign-up, no upload. Paste the transcript from your trimmed video and get subtitles timed to the word.

Caption a video See how it works
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Caption a video