Video Merger

Video Merger joins two or more video clips into a single file. Everything runs on this page - pick your clips, put them in order, and save the combined video.

Key features

• Add files one at a time or several at once; the order you add them is the order they play in the merged output.
• 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.
• Made a mistake? Remove any file from the queue before merging.
• The merge runs as a lossless copy rather than a re-encode, so there is no quality loss and no long wait.

All clips must share one format

Queue only files of the same type - for example, all .mp4 or all .webm. If the formats do not match, a clear message tells you to convert them first instead of producing a broken result.

Merge into one, or split into pieces

Combining clips into one file is the job of the tool above. Need the opposite - one video cut into pieces instead of several combined into one? Use the video splitter.

Your files never leave your device

Everything happens inside this browser tab via FFmpeg.wasm - your files are never uploaded anywhere, and nothing is retained once you leave the page.

When a lossless merge isn't enough

This page's lossless copy only works when every clip already shares one format and needs no other change. Once you need to combine clips of different formats, add a title or background music, caption the speech, or trim before joining, the video editor handles the same combine-clips job on a full multi-track timeline instead of a straight copy-merge.

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