Combine Videos joins several clips end to end into one continuous file. Use it to assemble a hook, demo, and call to action into a single ad, or to merge separate renders without leaving Krex AI.
What it does
It takes the clips you provide, lines them up in the order you set, and concatenates them into one video you can export. There's no re-prompting or re-rendering — your existing footage is stitched together as is, so the output matches what you put in. It's the quickest way to turn a set of short clips into a finished sequence.
How to use it
- Open the Editing tools and pick Combine Videos.
- Upload your clips, or pick them from a project you've already rendered.
- Drag the clips into the order you want them to play.
- Confirm the sequence reads the way you intend.
- Run the combine and wait for the joined video.
- Download the result, or send it on to another tool.
Tips
- Keep clips at the same aspect ratio so nothing gets cropped or letterboxed.
- Lead with your strongest hook clip — the first second decides whether viewers stay.
- Render variations separately, then combine the best takes into one cut.
- If a transition feels abrupt, reorder or trim the clips before combining.
Ready to assemble a sequence? Get started, or fine-tune the cut in the Timeline Editor.