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GivenTool

Remove the background from an image

Cut the subject out of a photo and get a transparent PNG, or put it on white or any colour.

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Product listings, ID-style photos, slides and profile pictures often need the subject on a clean background. This tool runs a salient-object segmentation model (U²-Net-p, Apache-2.0 licensed) inside your browser with ONNX Runtime Web, so the photo is analysed on your device and never uploaded.

The model looks at a 320 × 320 copy of the photo, predicts how likely each area is to be the main subject, and that mask is scaled back up to your image. It works best when there is one clear subject such as a person, a product or an animal with reasonable contrast against the background. Fine hair, glass, smoke and busy scenes with several subjects can come out soft or incomplete, so check the result before using it anywhere important.

The first run downloads the model and runtime (about 19 MB) from this site and the browser caches them. Images larger than 4096 px on the longest side are processed at 4096 px to keep memory use safe.

How to use it

  1. Drop a photo (JPG, PNG, WebP, HEIC and more) or click to browse.
  2. Click Remove background. A progress bar shows the one-time model download, then the subject is detected in a background thread.
  3. Choose Transparent, White or a custom colour, and add a little edge feather if the outline looks too hard.
  4. Download the PNG. With a transparent background, the areas that were removed stay see-through.

Frequently asked questions

Is my photo uploaded to a server?

No. The model file is downloaded from this site to your browser, and the photo is processed locally in a Web Worker. Nothing about the image is sent anywhere.

Why are hair or fine edges a bit blurry?

The model is small (about 4.4 MB) so it can run in a browser, and it predicts the mask at 320 × 320 before scaling it up. Edges with fine detail therefore come out softer than with large server-side models. Photos with a plain, contrasting background give the cleanest edges.

Which model is used, and can it be used commercially?

U²-Net-p by Qin et al., released under the Apache License 2.0, exported to ONNX by the MIT-licensed rembg project. It runs with ONNX Runtime Web, which is MIT licensed. The licence files are served alongside the model in /bg-removal/.

Why is the output a PNG?

PNG keeps the transparency channel exactly. If you need a JPG on a white background, choose White here and convert the PNG with the PNG to JPG tool, or compress it afterwards.

What if it picks the wrong subject?

The model finds the most visually prominent object. Crop the photo around the subject you want first, then run the background remover on the cropped image.

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