Which videos can I trim?

This tool accepts video files supported by the bundled ffmpeg build. The file never leaves your device, so there is no upload limit — the only ceiling is what your browser can hold in memory.

What is the difference between fast and precise trimming?

Fast mode copies streams and can begin near the requested keyframe rather than the exact instant. Precise mode re-encodes video as H.264 and audio as AAC in MP4 for more accurate boundaries.

Why is the page called a cropper if it selects time?

This implementation trims the video timeline; it does not crop the visible frame dimensions. Start and end choose the segment to keep.

Does precise mode change quality?

Yes. Precise mode re-encodes the media, so generation loss and a different file size are possible. Fast mode avoids that re-encode when the streams are compatible.

Video Trimmer / Cropper

LocalFree

Cut a video down to just the part you need. Set a start and end, preview, and export the clip — processed right in your browser with ffmpeg.

or drop it here

Choose a video to trim.

About the video trimmer

Choose a video and set the segment to keep. Fast mode copies streams and may cut near a keyframe; precise mode re-encodes H.264 video and AAC audio into MP4 for more exact boundaries.

How to use Video Trimmer & Cutter

1Select one video and set the start and end of the clip.
2Leave fast mode selected for a stream-copy cut, or enable precise mode to re-encode an exact MP4 cut.
3Select Trim video, preview the clip, then download it.

Frequently asked questions

Which videos can I trim?: This tool accepts video files supported by the bundled ffmpeg build. The file never leaves your device, so there is no upload limit — the only ceiling is what your browser can hold in memory.
What is the difference between fast and precise trimming?: Fast mode copies streams and can begin near the requested keyframe rather than the exact instant. Precise mode re-encodes video as H.264 and audio as AAC in MP4 for more accurate boundaries.
Why is the page called a cropper if it selects time?: This implementation trims the video timeline; it does not crop the visible frame dimensions. Start and end choose the segment to keep.
Does precise mode change quality?: Yes. Precise mode re-encodes the media, so generation loss and a different file size are possible. Fast mode avoids that re-encode when the streams are compatible.