Merge Videos Online

Merge videos online for free: join clips in any order, add transitions between them and export one MP4. Runs in your browser — nothing is uploaded.

Open the tool — free

Combine several clips into one video. Put them in order on the timeline, add a transition if you like, and export a single MP4 — free, in your browser, with nothing uploaded.

How to merge videos

1. Click Open the tool above and import all your clips. You can select several files at once.
2. Drag the clips onto the timeline, one after another, in the order you want.
3. To reorder, drag a clip to a new place. To close a gap, right-click it ▸ Ripple Delete Gap.
4. Optional: drag a transition from Effects ▸ Video Transitions (for example Cross Dissolve) onto the cut between two clips.
5. Click Export.

Merging clips of different sizes

The first video you add sets the frame size. Clips with a different shape are centred in the frame. Select one and use Effect Controls ▸ Motion ▸ Scale to fill the frame, or apply Background Blur Fill from Effects ▸ Creative Effects to fill the sides with a blurred copy.

Make the joins smooth

• Add Constant Power from Effects ▸ Audio Transitions to fade the sound across a cut.
• Use Clip ▸ Normalize Loudness… so every clip is equally loud.
• Keep transitions short (about half a second) so the video keeps moving.

Questions

Can I merge videos with different formats?

Yes. MP4, MOV, WebM and MKV can be combined on one timeline, and the export is a single MP4 or WebM.

Is there a limit to how many videos I can merge?

No fixed limit. Long 4K projects are smoother on a computer with plenty of memory.

Will my videos be uploaded?

No. Everything happens on your device.

More: Timeline basics and Transitions.