Licenses

CleanBG itself is a website that ships MIT-licensed machine-learning models to your browser. A few supporting libraries have their own terms. Everything listed here runs on your device; nothing is a server-side dependency.

MIT models

These weights are downloaded to your browser and remain under their original MIT licenses. See also the model credits.

• BEN2 — PramaLLC, github.com/PramaLLC/BEN2
• BiRefNet — Zheng Peng et al., github.com/ZhengPeng7/BiRefNet
• Transformers.js — Hugging Face (Apache-2.0)
• ONNX Runtime Web — Microsoft (MIT)

HEIC decoding (LGPL-3.0)

iPhone photos are often saved as HEIC. Safari can decode them natively, so this extra code never loads there.

On browsers that cannot decode HEIC, CleanBG lazily loads heic-to (LGPL-3.0). That package embeds libheif (strukturag/libheif, LGPL-3.0) and converts the file in memory in your tab. The image is not uploaded.

LGPL-3.0 is a weak copyleft license. You can:

• Read the full license text we ship at /licenses/heic-to-LGPL-3.0.txt
• Get the corresponding source for heic-to at github.com/hoppergee/heic-to and for libheif at github.com/strukturag/libheif
• Replace the library in your own copy of this site: the decoder is dynamically imported from the heic-to npm package and is not statically linked into the inference engine

If you never open a HEIC/HEIF file, this library is not downloaded at all.

Other notices

Icons in the interface come from Lucide (ISC). Fonts are Inter and Libre Baskerville (OFL).