Merge Videos
Add two or more video files, arrange them into the order you want, and merge them into one continuous video — done entirely in your browser via FFmpeg.wasm, with nothing uploaded to a server.
Your video is processed on your device and is never uploaded to our servers.
Only use this tool with files you own or have the right to process.
Merging requires every clip to have an audio track (even if silent) — if one clip has no audio, the merge may fail.
Drag several video clips here or choose them
They'll be merged in the order shown below
What this tool does
Joins several video clips into one in the order you arrange them, appending each after the last.
When to use it
- A recording came out as several files because of a camera's clip-length limit.
- You are assembling short clips into one continuous video.
- You are adding an intro or outro to a main clip.
How to use it
- Put your video files on the drop area or choose them.
- Order them with the move up and move down controls until the sequence is right.
- Run the merge and wait for processing.
- Download the merged video.
A practical example
Input
Three camera clips of three minutes each, in chronological order.
Output
One nine-minute clip running through all three without gaps.
Limitations
- Clips with different dimensions or frame rates may need normalising first to avoid an inconsistent result.
- There are no transitions between clips; the merge is a straight join.
- The total duration you can handle is bounded by your device's memory.
Privacy and processing
All the clips you add are joined on your device, and none of them is uploaded to our servers.
Technical notes
- Merging runs locally through FFmpeg.wasm inside a web worker.