Merge MP4 Files
Add, remove, reorder, and merge multiple MP4 clips into one video.
How it works
Add at least two MP4 files, arrange them in the desired order, and start the merge. Clips are normalized before joining.
Result
One MP4 with consistent H.264 video and AAC audio, using the first clip as the output canvas size.
Limitations
Clips are re-encoded so files with different codecs, dimensions, or audio layouts can play consistently. Processing time grows with total duration.
Frequently asked questions
Can MP4 files with different resolutions be merged?
Yes. Each clip is fitted to the first clip’s canvas before the files are joined.
Can clips be reordered or removed?
Yes. Use the controls in the clip list before starting the merge.