How to do split screen on TikTok
TikTok has its own ways to show two videos at once — Duet, Green Screen and Overlay — and its sister editor CapCut adds more. Each is built for a slightly different job. Here's what each one can do, how they compare with a dedicated collage app, and how to post a split screen or video collage to TikTok.
TikTok, CapCut or a collage app?
| Video Grid Collage | TikTok app | CapCut | |
|---|---|---|---|
| Several of your own videos playing at once | Up to 9 at once in 100 layouts, up to 100 clips per collage | Duet: your video next to a posted TikTok. Overlay: one clip on top of another | Multi-track timeline: stack clips and size them by hand |
| Layouts | 100 ready-made grids, split screens and gradient blends | Duet: side by side, top and bottom, react, three screens | Templates, or arrange clips by hand |
| Trim and sync each clip | Each cell has its own timeline track | Trim clips in the editor | Full multi-track timeline |
| Captions and text | Auto Captions in dozens of languages, 20 fonts, animations | Auto captions, text and stickers | Auto captions and text styles |
| Background | Remove BG on any clip or photo | Green Screen: you in front of a photo or video | Automatic background removal |
| Music | Songs from your library or Files, volume and fades | TikTok's sound library | Music library and sound effects |
| Result | Video file up to 4K at 60 fps with HDR, 9 aspect ratios | Posts straight to TikTok | Video file up to 4K at 60 fps |
| Price | First project free with every feature, then Pro | Free | Free, with paid subscriptions |
| Best for | Grids and split screens in a few taps | Duets and reactions to other TikToks | Full video editing |
TikTok and CapCut features checked in September 2026. They change often — if something here is out of date, let us know.
When TikTok's own tools are enough
- Reacting to someone's TikTok: Duet puts your video next to theirs — side by side, top and bottom, react or three screens.
- Adding your take after someone's clip: Stitch plays a few seconds of their video, then yours.
- You in front of a photo or video: the Green Screen effect.
- One clip in a corner of another: Overlay in TikTok's editor.
- Several of your own videos side by side or in a grid, each trimmed to the right moment: that's the job of a collage app — the steps are below.
Step by step
Pick the TikTok format
Open Video Grid Collage (free on the App Store). In the Format section of the start screen, pick TikTok and then Video (9:16) — or start from any vertical template.
Add your videos and photos
Choose clips and photos from your library or Files — the grid fills itself. Side by side suits comparisons and duet-style videos, 2×2 grids suit recaps, stacked splits suit tutorial + result.
Make the first second count
TikTok viewers decide in the first second whether to keep watching. Trim every clip on the timeline so something moves immediately — no dead frames at the start.
Add a hook
Put a short title near the top with Text, or subtitles with Captions. Keep it clear of the right edge and the bottom, where TikTok's buttons and caption sit.
Export and upload
Export in high quality, then in TikTok tap +, choose Upload and pick the video. Add a sound from TikTok's library if you like, and post.
Can I post it on TikTok?
Yes. The collage is an ordinary video file in your Photos app, and it's yours: your free first project and every Pro project export without a watermark, and the app doesn't limit where you publish. TikTok accepts videos made in any app.
The only thing to check is what's inside. Your own footage is always fine; songs and other people's clips need the right to use them. For music, export the collage without it and add a sound from TikTok's library when you post — that's also how you ride a trending sound.
Collage formats that work on TikTok
- "Expectation vs reality" side-by-sides — the native fit for a two-frame layout.
- Multi-angle edits: the same moment from 3–4 phones in one grid reads as high-effort content.
- Recap dumps ("June in 9 clips") — a 3×3 grid where every tile moves is an instant scroll-stopper.
- Loop-friendly endings: trim the last clip so the collage ends where it began and the rewatch feels seamless.
Try it yourself — free
Video Grid Collage · 4.9 on the App Store · 100 layouts, up to 100 clips in one collage