Change Photo Background Colour
Cut out the subject and put it on the colour you choose — white, blue, red, your brand colour — by a neural network on your device.
Background
Saves as JPEG on a solid colour — ideal for product listings.
About the model
ISNet (DIS) general-use segmentation, Apache-2.0, quantised to int8 (44 MB). Runs in a Web Worker with ONNX Runtime on your CPU. Inference at 1024×1024, result composited at your image's resolution (up to 4096px; Pro: 8192px). The model is cached on your device after the first download.
What this tool does
It separates the subject from the background with ISNet — a dichotomous image segmentation network, Apache-2.0 — running on your device in a Web Worker with ONNX Runtime. The 44 MB model downloads from this site once and is cached; your image never leaves your browser. Full-resolution output up to 4096 px, no credits, no watermark.
Typical uses
ID and visa photos that demand a plain white or light-blue background; employee headshots on a consistent company colour; product photos on a seasonal colour; marketplace images on pure white. Pick White, Black or a custom colour; the subject is cut out by the model and composited onto it, and the result is a JPEG (no transparency needed). For official photos check the specific requirement — many passport rules want off-white or light grey rather than pure white, and a plain expression and even lighting matter more than the background.
Edges against a new colour
Hair against a very different colour is where cut-outs show. Use Soft edge for portraits; it feathers the alpha so stray hairs blend instead of cutting off. For products and logos, Crisp.
Limits and honesty
- Fine hair, fur and transparent objects are the hard cases; use Soft edge and expect touch-ups for critical work.
- The model picks the most salient subject; busy scenes with several equal subjects may keep more than you want.
- Inference is at 1024×1024 and the mask is resampled to your image's size; extremely fine detail on very large images is interpolated.
The full tool with every option lives at Remove Background.
Frequently asked questions
Is my image uploaded?
No. The page is static and has no upload endpoint; your browser does the work on your own device and the result is saved straight back to your disk. The site's Content-Security-Policy only allows it to talk to its own origin, so it cannot send your file anywhere even by accident. Load the page, disconnect from the internet, and it still works.
Is this good enough for a passport photo?
For the background, yes — it produces a clean, even colour behind a head-and-shoulders portrait. The photo still has to meet the size, pose, lighting and expression rules of your country; check those separately and use the resizer for the exact pixel dimensions.
Can I use a gradient or a photo as the background?
Not here — solid colours only. Export a transparent PNG (choose None) and place it over anything in an editor or the OG image maker.
Why does it download 44 MB the first time?
That is the neural network itself — it has to be on your device to run there. It comes from ai-pix.co.uk, is cached by your browser, and is not fetched again until we ship a new version.
Is it free? Any limits or watermark?
Free, no account, no watermark, no daily quota. Because nothing runs on our servers there is nothing to meter. The only limits are your device's memory — anything up to roughly 50 megapixels is fine on a modern phone or laptop.
Does it work on my phone?
Yes on recent phones; the first load is heavier on mobile data (44 MB) and each image takes 5–15 seconds.