Skip to the tool
ClipFlow

Trim Video Online

Set an exact start and end point while previewing the video, then download just that section.

Selected: 10.0s · Trim limit: 10 minutes

How to use it

  1. 1Choose your video — it previews instantly from your device.
  2. 2Set the start and end time in seconds.
  3. 3Start the job; we cut and encode exactly that range.
  4. 4Download the clip within 30 minutes.

What makes this one different

Preview before you commit

The video plays directly from your device before anything is uploaded, so you can find your in and out points without waiting on a round trip.

Frame-accurate cuts

We re-encode the selected range rather than cutting on keyframes only, so the clip starts exactly where you asked instead of up to several seconds early.

Clean output

Trimmed clips are written as H.264 at CRF 20 with AAC audio and faststart — high quality, and immediately playable everywhere.

Formats and technical details

Accepted input
MP4, MOV, WebM and similar, up to 500 MB
Maximum clip length
10 minutes on the free tier
Output
MP4, H.264 CRF 20, AAC 160 kbps
Cut accuracy
Frame accurate — the range is re-encoded
Retention
30 minutes, then deleted

What people use it for

  • Pulling a single highlight out of a long recording.
  • Cutting the dead air off the start and end of a screen capture.
  • Preparing a short section for a GIF or a social clip.

Limitations worth knowing

  • One continuous range per job — removing a section from the middle takes two passes.
  • Clips are limited to 10 minutes on the free tier.
  • Trimming re-encodes, so the clip is not byte-identical to the source.

Keyframe cuts versus re-encoded cuts

Fast trimming works by copying streams and can only cut at keyframes, which in typical footage appear every two to ten seconds. That is why some tools silently start your clip earlier than you asked.

Re-encoding the range costs processing time but gives you the exact frame. For short clips that difference is worth a few seconds of waiting.

Frequently asked questions

Is the cut exactly where I set it?

Yes. Because we re-encode the selected range, the clip begins at the second you specified rather than at the nearest preceding keyframe.

Can I cut a section out of the middle?

Not in a single job. Trim the part before and the part after separately; joining them is not supported yet.

Does trimming lose quality?

A little, since the range is re-encoded — but at CRF 20 the difference is very hard to see on normal footage.

How long can a trimmed clip be?

Up to 10 minutes on the free tier, and the source file must be under 500 MB.

Is my video uploaded before I finish choosing the times?

No. The preview plays locally from your device; the upload only starts when you press the button.

Related tools

What people usually do next.

Video to MP3 ConverterUpload a video and get its audio track as an MP3 — no account, no software to install.Remove Audio From VideoStrip the sound from a video and keep the picture exactly as it was.Crop Video for Social MediaReshape a video for a specific platform without stretching it or adding black bars.

Preview plays locally in your browser. Clips up to 10 minutes on the free tier.