Media trim

Trim

Set start and end seconds. Export only the segment you need.

Runs in your browser. Media is processed with FFmpeg WASM in this tab — nothing is uploaded to BrowserSpaces. The engine preloads in the background while you set up the tool.

Precise times

Start and end in seconds.

MP4 export

Accurate cuts via re-encode.

Local encode

FFmpeg in the tab.

Use the tool

Cuts are re-encoded to H.264/AAC for accurate start/end times (not stream-copy).

Media file

No file selected.

Start (seconds)End (seconds)

How it works

How trimming works

We pass -ss and -to to FFmpeg and re-encode to H.264/AAC so start and end times stay accurate (stream-copy would snap to keyframes).

Three steps

1
Load media
Any supported file.
2
Set range
Start and end times.
3
Export clip
Download the cut.