Language: English

Remove image background, privately

  1. Choose file
  2. Set options
  3. Get result

200 MB · 100 MP

The photo stays in this tab. Only the model file is fetched from the network.. The photo stays in this tab. Only the model file is fetched from the network.

Drop a JPG, PNG or WebP photo, click Remove background, and download a PNG with transparency. The AI model loads only when you run it. Your file never leaves this tab.

How it works

GustKit runs BiRefNet lite with Transformers.js in a Web Worker. The first run downloads the model from Hugging Face into the browser cache. Later runs reuse it. Only GET requests leave your tab, for the library and weights, not your photo.

Best results

Clear subject and contrast with the background work best. Hair and fine edges get soft transparency. Files over the size or megapixel limit shown above the drop area are refused with an error; GustKit does not shrink them for you.

How to check the PNG before you send it

  1. If the photo is HEIC, convert it first with HEIC to JPG.
  2. Download the PNG and open it on a checkerboard or gray background.
  3. Zoom hair and edges; soft alpha is normal.
  4. If you need a smaller file, run it through Compress image after.

Your photo stays in this tab. The first run downloads BiRefNet lite; later runs in the same browser reuse the cache.

Frequently asked questions

Is my photo uploaded?

No. Processing runs in this browser tab. The image bytes are not sent to GustKit servers.

Why does the first run take longer?

The BiRefNet model downloads once, then the browser caches it. Your photo is not part of that download.

What format do I get?

A PNG with an alpha channel, at the same width and height as your original. The removed area is transparent.

Can I use an iPhone HEIC photo?

Not directly. This page reads JPG, PNG and WebP. Convert the HEIC to JPG first, then drop the JPG here.

Does this work on product photos?

BiRefNet handles many subjects, but busy scenes can leave small background patches. Crop or touch up if the edge matters.