What is a Video Joiner?
This tool joins multiple videos into one MP4 in the order you set. When codecs and resolution match, it merges with a lossless stream copy (fast, no quality loss); otherwise it automatically falls back to re-encoding.
How to use
Done in three steps:
- Upload two or more videos (multi-select or add repeatedly).
- Reorder clips with the up/down buttons and remove any you don't need.
- Click “Join Videos” and download the merged MP4 when done.
Tips
- Videos with the same codec and resolution (e.g. clips exported from the same app) join fastest with no quality loss.
- Videos with different codecs automatically take the re-encode path with a small quality loss.
- All processing happens in your browser — nothing is uploaded.