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How to Make a Split-Screen & Collage Video on Phone

Published June 28, 2026 Updated September 15, 2026 6 min read By the ExpoCut team

Split screens do a lot of work: comparisons, reactions, multi-cam, before/after. ExpoCut has ready-made layouts so you just drop a clip into each slot — no fiddly resizing.

Quick answer

To make a split-screen or collage video in ExpoCut: tap the big + and choose Collage on the Add Layer sheet, pick a layout family — Grid (2×2, 3×3, 2×3, 3×2, Triple), Mosaic (Feature + 4, Spotlight, L-Shape, Pinterest, Hero + 2), Diamond, Freeform or Shape (Heart, Circle) — then tap each numbered slot on the Customize screen and pick a photo or video. The Style tab sets the background and border width/colour. Tap Add to Timeline and the whole grid lands as one Collage clip you can trim, move and label.

  • Collage is a tile on the Add Layer sheet (big + button), between Brush and Lower Third.
  • Five layout families: Grid, Mosaic, Diamond, Freeform, Shape — from 2 to 9 tiles, sizing done for you.
  • The Customize screen previews the grid live; every numbered slot takes a photo or a video from your library.
  • Style tab = background swatch + border width (0–12) and colour.
  • The finished collage is a single clip on its own row (C1), 10 s by default — trim, keyframe or transition it like any clip.

A single frame can hold more than one story. Split screens and collages let you compare two takes, react to a clip, show four angles at once, or build a before/after — and ExpoCut’s ready-made layouts mean you never have to eyeball the sizing.

What you can build

  • Reaction — the source clip big, you small in a corner.
  • Comparison / before-after — two tiles, side by side.
  • Multi-cam — three or four angles in a grid.
  • Stylized split — diamond or mosaic for a designed look.

Step 1 — Pick a layout

  1. Tap + ▸ Collage

    The Add Layer sheet has a Collage tile. Choose a family — Grid, Mosaic, Diamond, Freeform (place tiles anywhere) or Shape (Heart, Circle) — and a layout.

  2. Drop a clip into each tile

    On Customize, tap each numbered slot and pick a video or photo; ExpoCut handles the sizing and position. The preview updates as you go.

  3. Style it and add it

    The Style tab sets the background and the border. Tap Add to Timeline — the grid lands as one Collage clip.

The Add Layer sheet with tiles Text, Image, Video, Audio, Shape, Brush, Collage, Lower Third, 3D Object, Widget, Logo and Shader. Collage
The big + opens Add Layer; Collage sits in the second row.
The Choose Layout screen with family chips Grid (selected), Mosaic, Diamond and Freeform, showing 2×2 Grid, 3×3 Grid, 2×3 Grid, 3×2 Grid and Triple with clip counts. Grid · Mosaic · Diamond · Freeform · Shape 2 to 9 tiles — sizing done for you
Ready-made layouts from 2 to 9 tiles. Grid for clean splits; Mosaic (Feature + 4, Spotlight, L-Shape, Pinterest, Hero + 2) and Diamond for a designed look; Shape for a heart or circle of tiles.
The Customize screen: a live 2×2 preview with blossom, hands, flowers and waterfall clips, 4 of 4 clips added, Media and Style tabs, four numbered slots with green ticks, and an Add to Timeline button. Live preview Tap each numbered slot Add to Timeline
Fill each slot with a video or photo from your library — the preview fills in as you go. Tap a filled slot to swap it.
The Customize screen's Style tab: Background swatches (transparent, white outline, black, cream, sand, navy, red, blue) and a Border section with Width 0/2/4/6/8/12 and colour swatches. Background Border width + colour
Style: a background behind the tiles and a border (width 0–12, any colour) between them.
A 2×2 collage filling the 9:16 canvas — blossom, hands holding a seedling, pink flowers and a waterfall — with a Collage — 2×2 Grid clip of 10 seconds on row C1. Four clips, one grid — playing together One Collage clip on C1
The finished split: four clips in one collage layer, each playing at once. Trim the C1 clip to set how long the grid stays up.

Step 2 — Make it move

A static split is fine; a moving one is better. The collage is one clip, so you can:

  • Start full-screen and transition into the split.
  • Keyframe a tile sliding in from the edge.
  • Animate a comparison wipe between before and after.

Step 3 — Add labels

Split screens almost always want labels — “Before / After”, names, or camera tags. Drop a title or a lower third on each tile so viewers know what they’re looking at.

Mind the safe area. On a 9:16 split, keep faces and key action away from the center seam and the platform’s UI zone at the bottom.

Where to go next

Pick a layout, fill the tiles, label them — and you’ve turned one frame into a comparison, a reaction, or a four-angle show.

Frequently asked questions

How do I put two videos side by side?

Add a collage or layout preset, pick a two-up split, and drop a clip into each tile. ExpoCut sizes and positions them for you, so you get a clean side-by-side without manually scaling each video.

Which layout should I use for a reaction video?

A two-tile split (or a small picture-in-picture) works best: the thing you're reacting to in the big tile, you in the smaller one. For multi-cam or comparisons, use a grid; for a stylized look, try mosaic or diamond.

Can I animate the split?

Yes — each tile is a layer, so you can keyframe a tile sliding in, or transition from full screen into a split. Freeform layouts let you place and size each clip exactly where you want.

Two videos, one screen

Grid, mosaic, diamond and freeform layouts for split-screens, reactions and multi-cam. Drop a clip in each tile — done.

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