Don's Tools · Video · Merge Clips

Merge clips

Join your video clips into one, in the order you choose, right in your browser. Nothing is uploaded.

Output
Size
FPS
Quality
Audio
Joins matching clips instantly with no quality loss; re-encodes mixed clips to line them up. Uses a built-in engine that downloads about 31 MB the first time.
Heads up: everything runs on your device. All clips are held in memory while they are joined, so a large number of big clips can slow down or crash the tab, and re-encoding mismatched clips is much heavier than a plain join. You can merge up to 50 clips, each up to 1 GB. Keep this tab open and your device awake while it works.
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Drop video clips here
or tap to choose · 2 to 50 clips, 1 GB each · reorder with the arrows · stays on your device
Working...0%
Merge Clips is a free tool that combines several video clips into one video entirely in your browser, with nothing uploaded. Add clips, drag the arrows to put them in the order you want, and merge. When all your clips already share the same format, size and frame rate they are joined with no re-encoding and no quality loss; when they differ, each clip is scaled to fit a common frame and re-encoded so they play as one continuous video. You can keep the first clip's size or pick 1080p, 720p or 480p, set the frame rate, choose MP4 or WebM, and keep or drop the audio. It uses a built-in engine that downloads about 31 MB the first time. You can merge up to 50 clips, each up to 1 GB.

Frequently asked questions

How many clips can I merge, and will my device cope?

You can add up to 50 clips. Everything runs on your device and all clips are held in memory while they are joined, so a large number of big clips can slow down or crash the tab. If your clips do not match, they are re-encoded to line them up, which is much slower and heavier than a plain join. On a phone or older machine, merge fewer or shorter clips at a time.

Are my videos uploaded anywhere?

No. The clips are joined inside your browser on your device, and nothing is ever sent to a server.

Will merging lose quality?

If all your clips already share the same format, size and frame rate, they are joined with no re-encoding at all, so there is zero quality loss and it is fast. If they differ, they have to be resized to a common frame and re-encoded to line up, which costs a little quality and takes longer. That is true of any video merger.

What size will the merged video be?

By default it matches your first clip, and the other clips are scaled to fit inside that frame with black bars if their shape is different, so nothing is stretched. You can also pick 1080p, 720p or 480p, and choose the frame rate and format.

Do my clips need the same format?

No. You can mix MP4, MOV, WebM and other common files. When they differ, the tool normalizes them to one size, frame rate and format so they play back as one smooth video.

Why does it download about 31 MB?

Joining mixed clips reliably needs a full video engine, so this tool uses a built-in one that downloads about 31 MB the first time you merge. After that it is cached. Nothing about your videos leaves your device.