Green Screen & Chroma Key — On Your Phone
Key out a green (or blue) screen on mobile with spill suppression and edge feathering for clean edges. No green screen? ExpoCut’s on-device AI removes ordinary backgrounds too.
Free plan available · runs on-device · your media never leaves your phone.
Quick answer: Yes — you can key out a green screen on your phone. ExpoCut’s chroma-key tool removes a green or blue screen with spill suppression and edge feathering, entirely on-device, and exports up to 4K on iPhone and Android. If you don’t have a green screen, its on-device AI background removal cuts the subject out of ordinary footage instead. ExpoCut offers a free plan.
| At a glance | Detail |
|---|---|
| Platforms | iOS, iPadOS, Android |
| Keying | Chroma key (green or blue) with spill suppression and edge feather |
| No green screen? | On-device AI background removal on ordinary footage |
| Privacy model | Keying and matting run on-device — footage never uploaded, works offline |
| Compositing | Layer subjects over video, photos, or generative backgrounds; 130+ visual effects |
| Export | Up to 4K on-device |
| Price | Free plan available |
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How to use green screen on mobile
Add your footage
Drop your green-screen clip on top of the background you want behind it.
Apply Chroma Key
Pick the key color (green or blue); ExpoCut removes it and reveals the layer beneath.
Refine the edges
Dial in spill suppression and edge feather so hair and edges look natural.
Export in 4K
Render on-device with your new background composited in.
Clean keys, two ways
Real chroma key
Spill suppression and feathering remove the green without a hard, cut-out look.
AI matting fallback
No green screen? On-device AI removes ordinary backgrounds frame by frame.
Composite freely
Layer your subject over video, photos, or generative backgrounds.
On-device & private
Everything keys on your phone — no upload.
Frequently asked questions
Can I do green screen on my phone?
Yes. ExpoCut’s chroma-key tool removes a green or blue screen with spill suppression and edge feathering, all on-device.
What if I don’t have a green screen?
Use AI background removal instead — it cuts the subject out of ordinary footage with no chroma backdrop required.
Does it work offline?
Yes. Keying and matting run on your phone, so they work without a connection and keep your footage private.
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Key it out on your phone
Chroma key plus AI matting, both on-device. Free plan available.