Corridor Key
Browser-based AI video background removal and replacement
At a glance
- Editor scoreNot yet scored
- PricingFree plan
- Best forQuick free removal for short MP4 clips
- Free planYes
- Paid fromNone
- Facts checked20 Sep 2026
Where it wins
- Handles hair, glass, soft edges, and sheer fabric
- Replaces backgrounds with colors, images, or video
- No account, installation, or local GPU required
Where it doesn't
- Accepts MP4 input only
- Processing is limited to clips up to 8 seconds
- Video processing runs through a third-party Hugging Face Space
Our verdict on Corridor Key
Corridor Key is a free, browser-based AI video background removal tool for creators, marketers, and others who need to isolate subjects in short clips. Users upload an MP4, remove the existing background, choose a solid color, still image, or video replacement, and download an H.264 MP4. Access works through mobile, tablet, and desktop browsers, with no account, installation, or local GPU required. That makes it a practical choice for quick edits when a short clip is all you need.
Its strongest feature is the handling of difficult visual areas, including hair, soft edges, glass, and sheer fabric. Fast Mode and Full Mode provide two processing options, while the replacement workflow supports more than a simple transparent cutout. Corridor Key also states that uploaded clips and generated outputs are not stored on its own servers. The service processes video through a third-party Hugging Face Space, and its listed ecosystem connections include Hugging Face Spaces, Cloudflare, Google Analytics, and Microsoft Clarity.
The main trade-off is scope. Corridor Key supports MP4 uploads and H.264 MP4 exports, but the processing limit is eight seconds per clip. That keeps the tool focused on brief social, promotional, or preview footage rather than longer-form video work. It is a good fit for users who value immediate browser access, free processing, and background replacement without account setup. Choose another tool if you need longer clips, input formats beyond MP4, or a workflow that does not rely on third-party processing.
Corridor Key pricing
Corridor Key fact sheet
| Free plan | Yes |
|---|---|
| Paid from | None |
| Background replacement | Yes |
| Background blur | Not verified |
| Transparent video export | Not verified |
| Maximum resolution | Not verified |
| Maximum clip length | Not verified |
| Supported input formats | MP4 |
| Batch processing | Not verified |
| Deployment | Cloud |
| Platforms | Web |
| Support | |
| Built for | Solo, Small business (editorial estimate) |
| Integrations | 4 integrations: Hugging Face Spaces, Cloudflare, Google Analytics, Microsoft Clarity |
| Pricing | Free plan |
| Website | corridorkey.org |
| Facts checked | 20 Sep 2026 |
Corridor Key integrations
Corridor Key lists 4 integrations on its own site.
- Hugging Face Spaces
- Cloudflare
- Google Analytics
- Microsoft Clarity
Alternatives to Corridor Key
- AlphaCutA capable open-source choice for local, batch, and command-line background removal.—
- BGRemove.videoA free browser tool for removing video backgrounds and exporting transparent WebM clips.7.8
- EZ-CorridorKeyA free local matte-generation tool for filmmakers, editors, and visual-effects artists.6.8
See all Corridor Key alternatives →
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Reviewed by iTechGuides Editors · Editorial team · Updated Sep 2026
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