Does trimming re-encode my video?

Yes — the trimmed section is always re-encoded to MP4 (H.264/AAC), which keeps the result compatible regardless of your source video's original format.

How precise is the trim?

The timeline lets you pick your start and end to a tenth of a second. For very precise cuts, zoom in using your browser's video preview to confirm the exact frame.

Is there a file size limit?

Yes, 100MB, to keep processing reliable on typical laptops and phones.

Video Trim & Speed Changer

Trim a video to a start and end point and speed it up or slow it down.

Runs entirely on your device— nothing is uploaded, so processing uses your own CPU and memory. Large files can take a while (don't worry, it hasn't frozen), and very large files may be slow or crash the tab on phones — for big files, use a desktop or laptop.

Want to combine this with other edits? Try the full Video Editor

Processed 100% in your browser — nothing you enter here is ever uploaded.

Common use cases

Fitting a long clip into a 60s Short

Trim a longer recording down to the exact window you want, then export straight to MP4.

Speeding up a long tutorial for Reels

Cut down dead air and speed up the remaining footage to 1.5x–2x for a punchier short-form edit.

Slowing down a clip for emphasis

Drop the speed to 0.5x on a key moment for a slow-motion effect without any extra software.

How to use the Video Trimmer

Drop in a video — once it loads, drag the two handles on the timeline to set your start and end points.

Pick a playback speed if you want to speed up or slow down the clip (0.5x–3x). Leave it at 1x for a straight trim.

Click Trim video and wait for processing to finish.

Preview and download the result as an MP4.