click to erase
☞ runs entirely in your browser — nothing is uploadedDrop your image here
or click to browse — JPG, PNG, WebP
Click a colour on the image to remove it
OneImageTool
Free Image Tools
click to erase
Click the colour you want gone and the matching area turns transparent. Tune the tolerance until the edge is right, then save a PNG.
or click to browse — JPG, PNG, WebP
Click a colour on the image to remove it
one click per colour, not one stroke per outline
A lasso asks you to trace the subject. That is the right tool when the edge is what defines the shape — hair against a busy street, a hand over a pattern. But most pictures people want cut out are not like that: a product on white, a logo on a flat panel, a screenshot on a solid fill. There the shape is already implied by the colour, and tracing it by hand is work a computer can do exactly. Click the background and every pixel close enough to what you clicked drops out.
Close enough is the tolerance. Set it low and only near-identical pixels go, which keeps a hard edge but leaves a rim of blended pixels behind; raise it and the rim goes too, until it starts eating into the subject. There is no correct number — a JPEG background needs more than a PNG one, because compression has already smeared one flat colour into hundreds of slightly different ones. Clicks stack, so a background with two shades takes two clicks, and either can be undone without starting over.
three steps
JPG, PNG and WebP are decoded in your browser. Nothing is uploaded — the picture and the result both stay on this device.
The matching area turns transparent straight away and the checkerboard shows what went. Click again for a second shade.
Slide the tolerance until the edge looks right, flip to keep-the-selection if you wanted the inverse, and download a PNG with real transparency.
quick answers
The freehand tool selects by shape — you trace the outline yourself. This one selects by colour: you click a pixel and everything close to it goes. Use the wand when the background is flat, the lasso when the edge is complicated.
It sets how far a pixel's colour may be from the one you clicked and still be removed. Low values keep a crisp edge but leave the blended rim; high values clear the rim and eventually start removing parts of the subject.
With it on, removal spreads out from the pixel you clicked and stops at the first edge, so the white inside a letter O survives. With it off, every pixel of that colour anywhere in the picture goes — which is what you want for a repeated watermark.
Because the edge pixels are a blend of subject and background, so they are not quite either colour. Raise the tolerance a little, or click one of the rim colours as a second pick.
Yes. Turn on keep the selection and the tool inverts: what you clicked stays and the rest becomes transparent. Handy for pulling one flat-coloured shape out of a picture.
On a photo shot against a plain backdrop, yes. On a photo with a busy background it will not, because there is no single colour to click. That case needs a model, and this tool deliberately has none — which is why nothing has to be uploaded.
PNG, always. JPG has no alpha channel, so anything removed would come back as a black or white block instead of transparency.
No. The image is decoded and edited inside your browser, and the download is built on this device. There is no server in this tool to receive an image.
Yes — free, with no watermark and no sign-up.