Compatible video
Use MP4 clips with H.264 video, matching dimensions, orientation, and profile. Audio can be absent; when present, every clip needs matching AAC settings.
Free browser tool
Merge short MP4 clips into one video
Add your generated clips, put them in story order, and download one continuous MP4. The merge runs on this device and keeps the original encoded quality.
No video upload No watermark No re-encoding
Clip queue
The visible order becomes the finished video order.
No videos selected
Video bytes stay on this device. Processing and temporary output use browser storage.
The first release joins matching clips without re-encoding, so it is fast and preserves source quality.
Three simple steps
How it works
Turn a sequence of short generated clips into one continuous story, entirely inside your browser.
- 01
Add clips
Choose 2–20 compatible MP4 clips. Each file is checked locally before it joins the queue.
- 2–20 MP4 clips
- Up to 256 MB per clip
- 02
Arrange order
Preview, remove, and move clips until the visible queue matches the story you want to tell.
- Preview every clip
- The queue sets the final order
- 03
Merge & download
Join matching clips in your browser, then preview and download one continuous MP4.
- No re-encoding
- Preview and download the result
Good to know
Fast merging needs matching clips
Original quality
Matching encoded tracks can be joined without a long transcode or a second compression pass.
Local by design
Video bytes stay on this device. Temporary output uses private browser storage until the result is cleared or the site's data is removed.