Licenses and attribution

What this site ships

Inter Tight

SIL Open Font License 1.1. The licence text ships beside the font file at assets/fonts/OFL-Inter-Tight.txt. The font is self-hosted and is not fetched from a content delivery network.

Everything else

Hand-written HTML, CSS and JavaScript. No framework, no component library, no icon package, no analytics, no font service, no tag manager. The arrow and tick glyphs on this site are drawn here.

Planned, and why the licence matters

One of the planned free utilities removes the background from an image. Several obvious ways to build that are traps, so the choice is recorded before the build rather than after it.

Approved: rembg, pinned to BiRefNet

rembg's own code is MIT and BiRefNet is MIT, so both are usable commercially. The pin has to be enforced by a test rather than by a comment.

Blocked: rembg's default model

rembg defaults to a model released under a licence that requires a paid agreement for commercial use. Running the tool with no flags therefore produces output from a model this project is not licensed to use. A free page on a site that also sells a paid tier is still commercial use.

Avoided: AGPL-3.0 browser libraries

The most convenient in-browser option is AGPL-3.0. Its network clause can oblige the operator to offer the corresponding source of the service, which is a commercial decision rather than a dependency choice. Not shipping it.

Safe fallback: U-2-Net

Apache-2.0. Blockier edges than BiRefNet and no licence risk. Apache-2.0 also asks that an existing NOTICE file be preserved, which this page is where it would go.

Attribution requests

BiRefNet's authors ask for a citation of their paper rather than only a licence notice. When the tool using it ships, the citation goes here with it.

Corrections

If something on this page is wrong or missing an attribution it is owed, that is worth reporting and will be fixed. The Contact page names the route.