Remove a green screen without uploading anything
Most online green screen removers ask you to send the file to their server first. This one does not. The keying happens inside the browser tab you already have open, and the file never leaves your machine.
Why "no upload" is the whole point
Uploading a clip to a stranger's server means three things you usually did not agree to: your footage sits on someone else's disk, it gets processed by a queue you cannot see, and the export is often capped unless you pay. For a client's unreleased product video, a take with a person's face in it, or anything under an NDA, that is a problem before you even get to the quality of the key.
Running locally removes all of it. There is no upload step, so there is nothing to delete afterwards. There is no queue, so a 500 MB file is as fast as your own processor allows. And there is no account, so there is nothing to sign in to.
What you can do here
- Photos — drop a still shot on a green or blue backdrop and download a transparent PNG.
- Video — key a clip frame by frame and export a transparent WebM, or a ZIP of PNG frames if you need a sequence for an editor.
- Green or blue — the key colour is a parameter, not a hard-coded assumption, so a blue screen works the same way.
- Check your result — toggle a checkerboard behind the output so you can actually see the holes before you export.
What will not work, honestly
A colour-distance key separates pixels by how far they sit from the key colour. That has limits, and it is worth knowing them before you blame the tool:
- Shadowed backdrops. A dark patch on the screen sits further from the key colour than the lit part. Raise the tolerance and it comes back; raise it too far and parts of the subject start to disappear.
- Sheer or motion-blurred edges. A pixel that is half backdrop and half hair is genuinely ambiguous. Softening the edge helps; nothing will make it perfect.
- Spill on bright, thin subjects. Green light bouncing off the screen lands on hair and light clothing. The spill control pulls most of it back out, but heavy spill needs a dedicated despill pass.
- White walls. A white backdrop has almost no colour in it, so there is no chroma to key on. The tool falls back to luminance in that case, which is the best available option and still imperfect.
Getting a clean result
- Light the screen evenly. This matters more than any slider. A flat, evenly lit backdrop keys at a low tolerance; a shadowed one needs a high tolerance that starts eating the subject.
- Leave the default tolerance first. It is tuned for a normal green screen. Only move it if you actually see leftover patches or missing edges.
- Use the checker toggle. Transparent areas look like nothing. Checkerboard makes them obvious.
- Shoot a bit wider than you need. Keying trims the fringe; having margin means you keep the subject's outline.
Does anything get sent anywhere?
No. The page loads once and then works offline if you keep it open. There is no analytics script on the tool page, no account to create, and no watermark on the export. The full detail is on the privacy page.