Background Remover

Cut the subject out of a photo

The Background Remover finds the main subject of a picture — a person, a product, a pet — and makes everything around it transparent. You can keep the transparent background or place the cut-out on white or a colour of your choice.

It uses a compact AI model called U²-Net that runs inside your browser. The first time you click Remove background, the page fetches the model file (about 4.6 MB) and the engine that runs it (about 14 MB) from Brisqnex itself, so expect around 19 MB on a slow or metered connection. Your photo is not part of that download: it never leaves your device.

How to remove a background from an image

1. Click the upload box or drag in a PNG, JPG or WebP image.
2. Click Remove background. On the first run, a progress bar shows the engine and model loading, then “Finding the subject…”.
3. Compare the result with the original in the two panes. The checkerboard pattern marks transparent areas.
4. Optionally choose a New background: Transparent, White or Custom colour…
5. Click Download PNG.

What you download

• Always a PNG, named after your file — portrait.jpg becomes portrait-no-background.png.
• Transparent or filled: the background you picked is what’s saved, so a white background is baked in rather than left see-through.
• Full size, within limits: the cut-out keeps your photo’s dimensions unless its longer side is over 4096 pixels, in which case it’s scaled down to that.

Where a cut-out comes in handy

• Product photos: put items on a plain white background for a shop listing or marketplace.
• Profile pictures: replace a messy room behind you with a solid colour.
• Slides and posters: drop a transparent PNG of a person or object onto your own design.

Getting a cleaner cut-out

• One clear subject against a plain, contrasting background works best; group shots and busy scenes are harder.
• Hair, fur and fine outlines often come out soft or partly see-through, so check the edges at full size.
• Transparent PNGs can be large. Shrink the cut-out with the Image Compressor and choose WebP to keep the transparency, or set exact dimensions with the Image Resizer.
• For a brand colour, find its hex code with the Color Picker, then enter it in the Custom colour chooser.

How the cut-out is made

A mask, not a selection

The model looks at a small 320 × 320 version of your photo and scores every point for how likely it is to belong to the main subject. That score map is stretched back to your photo’s full size and used as a transparency mask: confident subject areas stay solid, background disappears, and uncertain areas become partly see-through.

Because the mask is worked out at low resolution and then enlarged, edges are smooth rather than crisp, and very thin details can fade.

Background Remover: common questions