Remove the background from any photo
Choose a photo and the background disappears by itself. Keep it clear, or put white, any colour, a soft blur or another photo behind. The AI runs on your own device, so your picture never leaves it.
Free forever · Runs on your device · 0 bytes uploaded
Speed depends on your device; big files on phones take longer. Slow or not working? Report it on GitHub
How to remove Background
- Choose a photo. The background is removed straight away.
- Pick what goes behind: nothing, a colour, a blur or your own photo. Touch up any spot if needed.
- Choose the size, then click “Download image”.
Also good for
- remove background from image free
- make background transparent
- change photo background to white
- remove bg online without uploading
- background eraser for photos
Private by design — and you can check
Your files are never uploaded, because there is nowhere to upload them to.
- No upload step existsFiles are read and written inside this browser tab. There is no server that could receive them.
- The browser enforces itThis page’s Content Security Policy only allows connections back to this site, which serves nothing but the app itself.
- See for yourselfOpen developer tools, watch the Network tab and run a job: no request carries your document.
- Open sourceEvery line is on GitHub, built on qpdf, pdf.js & pdf-lib.
Frequently asked questions
Are my files uploaded anywhere?
No. Fizzdoc does the work inside your browser tab, using open-source engines compiled to WebAssembly and JavaScript. Your file is read from your device, processed locally, and the result is saved straight back to your device. You can check this yourself: open your browser’s developer tools, go to the Network tab, and run a job — no request carries your file.
Will my picture lose quality?
No. The cut-out keeps your photo’s full resolution, with no size cap from Fizzdoc. Hair and fur edges are cleaned up at full size, so they look natural on any new background. You can also save a smaller copy.
How does it work without uploading?
An open-source AI model (BiRefNet) runs inside your browser, on your graphics chip when the device has one. It downloads once, about 110 MB, and then works even offline. Phones with little memory use a smaller model (U²-Net).
Is Fizzdoc free?
Yes, and it stays free: no sign-up, no watermark, no daily limit and no premium tier. Fizzdoc is open source under the Apache-2.0 license, so anyone can run their own copy.
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