Background eraser brush
Free, no signup, and your image never leaves your device.
Automatic removal gets most of the way on most images. The brush covers the rest: erase a patch it left behind, restore a piece of the subject it ate.
What it does
- Erase and restore with the same brush — one checkbox switches direction.
- Adjustable size and hardness, so a soft edge stays soft.
- Undo stroke by stroke, with the usual keyboard shortcut.
- Strokes survive every other adjustment, so you can keep tuning afterwards.
The part most tools get wrong
Strokes are stored where you drew them, not as pixels. The preview is a downscaled copy of your image, so a stroke recorded in preview pixels would land in the wrong place on a full-size export. Recording it in relative coordinates instead means the exported cut is exactly the one you were looking at.
Common questions
Do I lose my brushwork if I move a slider?
No. Strokes are kept separately and reapplied after every recompute, so you can paint first and keep adjusting the tolerance afterwards.
Is there an undo?
Yes — the undo button, or Ctrl+Z, removes the last stroke. "Clear strokes" removes all of them and leaves the automatic result.
Can I use it on a touchscreen?
Yes. The canvas handles touch and stylus input, and page scrolling is suppressed over it so a stroke does not drag the page instead.