Upload all input files; the order in the picker is the order of the output.
Video Merger
Add your video files one at a time, or several at once - the order you add them is the order they play in the merged output. Made a mistake? Remove any file from the queue before merging. The Merge Videos button stays disabled until at least two files are queued, so there is no risk of "merging" a single file into itself by accident.
All queued files must share the same format (for example, all .mp4 or all .webm) - if they do not, a clear message tells you to convert them first instead of producing a broken result. The merge itself runs as a lossless copy rather than a re-encode, so there is no quality loss and no long wait. Everything happens inside this browser tab via FFmpeg.wasm - your files are never uploaded anywhere, and nothing is retained once you leave the page.
Need the opposite - one video cut into pieces instead of several combined into one? Use the video splitter.
Frequently Asked Questions
What does Video Merger do?
Merge multiple video pieces into a single output.
When should I reach for video merger?
One-click download of the merged result.
What complementary tools work well alongside video merger?
For the reverse direction, see the related splitter.