Merge several videos into a single clip. Add files or pick clips you already edited, drag to reorder them, trim or crop each piece, choose which clip sets the output resolution, then export one MP4. Everything runs locally in your browser using WebCodecs — your file is never uploaded to a server, so it stays private and conversion starts instantly.
How to merge videos
- Add clips — drop new files or pick from your open sessions.
- Drag the clips to set the order they play in.
- Play a clip to trim or crop it, and pick which clip sets the output size.
- Click Create MP4 to download the merged video.
Frequently asked questions
- Can I reorder the clips?
- Yes — drag each clip up or down in the list to set playback order.
- Do the clips need the same size?
- No — pick which clip sets the output resolution and the others are fitted into it.
- Are my files uploaded?
- No. Everything runs locally in your browser using WebCodecs — your file is never uploaded to a server, so it stays private and conversion starts instantly.