EZ-CORRIDORKEY

Free forever · Built by Ed Zisk of EZSCAPE

A full desktop app for CorridorKey, the AI chroma keyer by Corridor Digital. Hair, motion blur, and translucency survive the key.

No Python, no command line. Import a clip, generate an alpha hint, run inference, export production-ready mattes.

Download for Windows macOS View on GitHub

In February 2026, Niko Pueringer of Corridor Digital released CorridorKey, a chroma keyer that unmixes foreground from background instead of thresholding green pixels. The results were impressive and, best of all, the tool was free for everyone. The catch: it was a command line Python script that wanted a 24 GB GPU.

EZ-CorridorKey was born out of necessity. Seeing the model's potential, Ed built a GUI around it so anyone could use the underlying technology without touching a terminal. With the help of community members, the VRAM requirement dropped below 8 GB, enabling quality keying on ordinary hardware.

Months of iteration made EZ-CorridorKey the #1 CorridorKey fork on GitHub. Then Corridor noticed: Niko reached out, and his feature requests started landing in updates. It remains free, in the same spirit as the original release.

Corridor Digital's announcement

Corridor unveils the AI keyer and the research behind it. Niko later reached out to Ed, and his feature requests started landing in EZ-CorridorKey updates.

Built onCorridorKeyThe upstream model by Corridor DigitalView on GitHub

Four alpha generatorsGVM and BiRefNet are fully automatic. MatAnyone2 and VideoMaMa give you paint-and-track control. A built-in chroma keyer and SAM2 tracking round out the hint toolbox.

CorridorKey refinerThe neural unmixer sits downstream of whichever model you pick and cleans up the alpha. Green and blue screens, with automatic detection of which one you shot.

Real-time dual viewerSource on the left, alpha or composite on the right. A/B wipe, pan and zoom, channel switching, and live despill, refine, and despeckle sliders.

Job queueStack clips in a queue and let them process back to back. Live progress, sound cues, recent projects, and session save so you can quit and come back.

Production exportsEXR sequences (DWAB, PIZ, ZIP), PNG sequences, ProRes 4444, and VP9 with alpha. Bit depth preserved end to end, ready for your NLE or compositor.

Runs locallyYour footage never leaves your machine. No accounts, no telemetry, no cloud. 8 GB of VRAM covers most clips on an NVIDIA card.

Full walkthrough from install to final export.

2.1.2June 28, 2026Shipped

FFmpeg import fix: video import no longer fails with newer FFmpeg builds that removed the old -vsync option
Stable FFmpeg repair: fetches the latest stable release and restores the previous copy if repair is interrupted
Update button repositioned: no longer covers the VRAM meter
Ukrainian and Traditional Chinese: 16 interface languages total
Show update notifications toggle in Preferences
Update checks now read published releases instead of the development branch

2.1.0June 16, 2026Shipped

UI translated into 14 languages, picked in Preferences
Built-in MLX engine for Apple Silicon, roughly 2x faster inference
Apple Vision foreground hint on macOS 14+, no painting needed
Batch pipeline processes an entire folder of clips autonomously
Tandem pan and zoom keeps both viewers locked to the same region
Installer, updater, and HDR extraction fixes across the board

FreeWINDOWS

Full installer and portable exe on Gumroad. Free, donations welcome. Handles Python, CUDA, and model downloads for you.

Download installer

FreeMACOS

Full installer on Gumroad. For the latest version with all 16 languages, grab the release from GitHub.

Gumroad installer Latest on GitHub

SourceLINUX

Clone the repo and run the install script. One command sets up the environment, the models, and the app.

EZ-CorridorKey is built by Ed Zisk, the creator behind EZSCAPE, a workshop for creative tools like Soundpendium, Ditheron and CRTified.

The app is free forever, released under CC BY-NC-SA 4.0. If you build upon the UI, kindly link to EZSCAPE and credit Ed Zisk. Logo by Sara Ann Stewart.

If EZ-CorridorKey saves you a roto session, your support via an EZSCAPE purchase, Patreon subscription or Ko-fi tip jar is how the project stays funded.