Skip to content
CornerTools

Background Remover

Remove the background from a photo — transparent PNG, white or any colour, at full resolution, free and without sign-up.

Drop images here or paste them, or

Nothing is uploaded unless you agree

Processed on your device where this browser can, otherwise on our server · JPG, PNG, WebP, GIF, BMP, AVIF or HEIC · up to 20 at a time

Background
Frame

Saved as PNG, which keeps the transparency.

Cuts the subject out of a photo and puts it on a transparent, white or coloured background, or over another picture, at the photo's own size. Product shots, profile pictures, stickers and slides are the usual uses. Add up to 20 photos at once and download them singly or as a ZIP; a brush fixes what the model gets wrong.

In a browser with WebGPU, such as Chrome or Edge on a computer, the model runs on your device and photos are not uploaded. Other browsers can use our server instead, if you agree: the photo is uploaded, processed and not kept.

How to use it

Background: Transparent (the default, saved as PNG), White, Colour (any colour you pick) or Image (a picture you choose, scaled to cover the frame and centred). Over a solid or image background the result is saved as JPG by default, or PNG or WebP.

Frame: Original keeps the photo's frame; Fit to subject crops to the subject with padding around it, from 0 to 20% of the subject's longer side (5% by default), within the photo's edges.

Edit on a result opens the brushes: Erase removes what the model kept, Restore brings back what it removed. The photo shows faintly under the cut-out, so erased parts can be found again. Strokes stay with the photo when you change the background, frame or format, and Undo and Redo step through them.

The result keeps the photo's size up to 24 MP on a computer and 12 MP on a phone or iPad, where browsers run out of memory sooner; a larger photo is made at the largest size that fits, and the result names both sizes. Photos are turned upright first, and the result carries no metadata. An animated image gives its first frame.

How the background is removed

A segmentation model, BiRefNet_lite, looks at the photo scaled to 1024 × 1024 pixels and gives each pixel a likelihood of belonging to the subject. That mask is then lifted to the photo's full size with a guided filter, which lines its edges up with the edges in the photo itself, so hair and fine outlines stay sharp rather than blocky.

Where hair or a soft edge is partly transparent, its colour is still mixed with the old background. The tool estimates the subject's own colour at each such pixel and keeps only that, so hair does not carry a fringe of the old background onto white or a new colour. Fine hair against a busy background can still need the brush.

On the device, the model and its runtime are a 60.22 MB download that starts with your first photo and can be cancelled; with the browser's data saver on, the tool asks first. It is made once: your browser keeps it, so later visits usually skip it, though a browser may clear stored data it has not used for a while. The model needs WebGPU with half-precision shaders, which recent Chrome and Edge have on most computers.

Elsewhere, the tool offers our server. It asks first, once per visit; nothing is uploaded unless you agree. The browser then sends a copy of the photo no larger than 1600 pixels on its longer side; Cloudflare Images finds the subject and sends back a cut-out, of which only the mask is used, on the full-size photo in your browser. The photo is not stored: the server keeps only a count of removals, for a limit of 30 a day per visitor and a monthly limit for the site.

Frequently asked questions

Those with WebGPU and half-precision shaders, such as recent Chrome and Edge on most computers, and Chrome on many Android phones from Android 12. The tool checks when the page opens: where either is missing, or the model fails to start, it offers the server instead, if you allow it.
Many passport authorities reject photos whose background was replaced. India's Passport Seva asks for photos “unaltered by computer software” ( Guidelines for ICAO Compliant Photographs for Passport Applications), and Korea's Ministry of Foreign Affairs refuses photos whose background was erased or replaced, or edited with AI (Passport photo (여권 사진)). Take the photo against a plain white wall instead, then size it with the Passport Photo Maker.
The model found no clear subject, which happens with landscapes, patterns and photos where everything is the same distance away. The result says so; Edit lets you brush the subject in or the background out.

See also