Press play and the head runs straight through both joins. Drag a clip to change the order.
Merge videos online by laying them out in the order they should play and exporting the result as one file. The sequence stays a timeline instead of collapsing into a queue, so a clip can be moved, trimmed at its join, or given a transition long after it was added. It runs in your browser and keeps the sources untouched.
How to merge videos in three steps
- 01
Drop the clips in
Bring in as many as the sequence needs, from as many sources as you like.
- 02
Put them in order
Drag them along the track until the sequence reads, and tidy each join.
- 03
Export one file
Render the whole sequence as a single MP4 up to 4K on your own machine.
What the video merger does
This is Compose V2, and it reaches workspaces one at a time.
Everything on one sequence
Clips from different cameras, a screen recording and a generated shot can share a track and a project. Nothing needs converting to match before it will sit next to something else.
Order you can keep changing
A sequence is not fixed at the moment you assemble it. Pull a clip out of the middle and the rest closes up behind it; drop one back in and the timeline makes room. The order is a decision you revisit, not an upload you redo, and someone else can be revisiting it beside you: several people hold the same timeline live on the Pro plan and above.
Joins that are not just cuts
Any join can take a treatment instead of a hard cut, a fade or a dip to black among them, and the audio crosses over on the same frame so the sound does not click where the picture changes.
Trim at the seam
The last second of one clip and the first of the next are usually what makes a join work. Both edges stay draggable after the sequence is built, so tightening a seam never means rebuilding what comes after it.
Assemble by asking
Copilot reads the timeline and can act across all of it at once, so putting a crossfade on every join is a single instruction. It lands atomically and comes back in one undo, however many joins it touched.
One file at the end
The sequence renders to a single MP4, at the project quality or one you choose, locally and without a queue. A marked span can leave on its own when you only want the middle.
Some sequences are missing a shot, not an edit, usually the one that bridges two others. Generate it here against the reference sheets the rest of the project already uses, picking from the whole model roster, and drop it into the join, where it matches the two clips either side instead of announcing itself. Seedance 2.5 is one of the video models on that roster.
Merge videos online
The reason to merge on a timeline is everything that happens after the merge. A converter answers the question once, hands you a file, and forgets; change your mind about the order and you start again from the original clips, if you still have them.
Here the sequence stays editable. Clips keep their identity after they are placed, so you can:
- Shorten the third without touching the six around it.
- Swap the fifth for a better take.
- Drop a title over the second.
The merge is not a step that closes. It is the shape the project has until you export it.
Combine videos that do not match
Most real merges are mismatched: a phone shot vertical, a camera shot widescreen, a screen recording at another frame rate, a still someone sent over. The usual advice is to normalise all of it first, which is an hour before the edit starts.
The project's own resolution and frame rate do that instead, and each clip decides how it sits inside the frame:
- Scaled to fill the frame.
- Left at its own size, with colour behind it.
- Repositioned so the part that matters is centred.
If the whole sequence needs to change shape afterwards, resize video online and all of them move together. Cameras that disagree about colour are the same problem one layer down, and color correction video online is where that gets levelled.
Join videos in the order that works
Order is worth treating as a draft. The sequence that seemed obvious from the filenames rarely survives watching it, and the fix is usually moving one clip.
Watch it through, find where attention drops, and move the clip that caused it. On a long pile of rushes you can ask instead: Copilot watches the clips in the chat and answers what is in them, so which take is cleaner is a question rather than a scrubbing session. It costs credits and reads several clips at a time. Because nothing is flattened, the move itself costs a drag. Once the order holds, one track running the length of the sequence is usually next, and you add audio to video on a layer of its own.
Related video tools
Online video editor
The full timeline: layers, titles, audio and colour around the sequence.
Video trimmer
Set each clip's in and out points before they meet at a join.
Add music to video
Run one track across the whole sequence, not clip by clip.
Resize video online
Give a sequence of mismatched sources a single frame to live in.
Change video speed
Even out clips that were shot at different paces before you join them.
AI montage maker
Have the sequence built to a track instead of assembled by hand.
Add text to video
Name each section once the running order has stopped moving.
B-roll generator
Make the bridging shot the sequence needs between two clips that clash.
