The toolbox
Video Trimmer
Video Trimmer snips the good part out of a video, right in your browser. Drop in a video, mark where the good part starts and ends, and download the cut.
Last updated October 27, 2026
How to use it
- Open Video Trimmer and drop in your video.
- Play it and mark the start and end of the part you want to keep.
- Trim it, preview the cut, and download.
Good to know
- One action per trim. Marking and previewing are free.
- Common video formats work; if your browser can play it, the trimmer can usually cut it.
- Rendering happens on your device, so very large files take a while and a strong sneeze of patience.
Your data
Your video never leaves your device. The trim happens in your browser and Bum Bum keeps no copy.
Tips
- Mark a little wide, then tighten. Cutting a second of dead air is easy; recovering a clipped first word is not.
- For a clip headed to social, trim to the moment itself. Context is what the caption is for.
Questions
Does my video upload anywhere? +
No. Everything happens in your browser.
What video formats work? +
The common ones your browser can play, like MP4 and WebM.