Split-screen Montage

How to use

1. Select four sources

   Select exactly four images or videos. Selection order becomes Slot 1–4 and the Stage order.

2. Check the Slots

   Replace or remove individual Slots as needed. The original title, cell placement, and animation of the video artifact remain unchanged.

3. Choose layout and output

   Choose landscape 16:9 or portrait 9:16, then set resolution and 30/60fps. Layout changes are locked during playback and export.

4. Preview or export

   Use Replay to verify the original timeline, then export MP4 when supported or WebM as the browser fallback.

Scope of the result

Exactly four image or video sources are required. Processing stays in the browser. The final container depends on MediaRecorder support; unsupported browsers can still preview.

Frequently asked questions

Are my images or videos sent to a server?

No. Loading, preview, and export run in the browser.

Do all sources need the same aspect ratio?

No. Each source is center-cropped with cover to fit its output cell.

What happens to video audio?

Each Stage uses its source video audio. Final montage audio can be a selected Video or no audio.

Can I make both landscape and portrait videos?

Yes. Switch between the original 2×2 landscape and 1×4 portrait layouts.