Join sequential clips
Combine several recorded parts into one continuous video.
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Drop videos here or choose filesMP4, WebM or MOV · up to 10 filesAbout Merge Videos
Merge Videos joins multiple video clips into one continuous MP4. Arrange the clips in the order you want, and videos with different dimensions are fitted to the first video's frame size before they are joined.
Common use cases
Assemble social or presentation segments
Put short clips in a chosen order before final sharing.
Create one review file
Merge multiple camera exports or screen recordings into a single file for easier playback.
How it works
1
You select multiple videos and arrange them in the intended sequence.
2
The browser prepares each clip for the supported merge pipeline.
3
The clips are concatenated into a new output video in the chosen order.
Privacy & file handling
Video merging is local
The supported merge workflow processes selected clips in the browser instead of uploading them to Zavilo for assembly.
Limitations and important notes
- Clips with different codecs, frame sizes or frame rates may require re-encoding before they can be merged.
- Transitions are not automatically created; the default operation joins clips in sequence.
- Large combined duration can increase processing time, memory use and output size.
Merge vs trim video
| Feature | Operation | Use when |
|---|---|---|
| Merge Videos | Joins multiple clips | You want one longer video from several sources |
| Trim Video | Keeps only part of one clip | You want to shorten a single source video |
How to use Merge Videos
- 1
Choose two or more MP4, WebM or MOV videos.
- 2
Drag clips or use the arrow buttons to set the merge order.
- 3
Add more clips if needed, up to 10 videos.
- 4
Click Merge Videos and wait for the clips to be normalized and joined.
- 5
Preview and download the merged MP4.
Tips for better results
- Put the clip with your preferred final frame size first.
- Clips with different aspect ratios are fitted inside the first video's frame without stretching.
- Merging many long or high-resolution clips requires more processing time and memory.
Frequently asked questions
Can I merge videos with different resolutions?
Yes. Each clip is fitted to the first video's frame size before the clips are joined.
Can I change the video order?
Yes. Drag clips to reorder them or use the up and down buttons.
What format is the merged video?
The merged result is exported as an MP4 file.