Open source licences

This interface is built from 174 third-party packages. Each keeps its own licence, and those licences govern that code, not anything on this site.

Copyleft code is served to your browser

snarkjs (GPL-3.0) is a runtime dependency of this interface and is delivered to every visitor. A strong copyleft licence attaches conditions to distributing software that includes it, including making corresponding source available on the same terms. Anyone deploying this interface should take advice on whether they are meeting them.

1.This project

1.1

The source is published at https://github.com/cheq3/cheq3 under GPL-3.0-or-later. Nothing on this page changes that licence or any licence below.

2.What is in it

2.1

Counted from the installed dependency tree on 2026-09-23: 174 packages, 13 of them under a copyleft licence, 1 of those reaching the browser.

Licence	Packages
MIT	131
Apache-2.0	12
GPL-3.0	10
ISC	5
BSD-2-Clause	4
MPL-2.0	3
BSD-3-Clause	3
0BSD	2
LGPL-3.0-or-later	1
CC-BY-4.0	1
BSD	1
Unlicense	1

3.The packages

Showing the 22 that either reach your browser or carry a copyleft or unclear licence. The rest are build-time only.

Package	Version	Licence	Where
@iden3/bigarray	0.0.2	GPL-3.0	build
@iden3/binfileutils	0.0.12	GPL-3.0	build
@img/sharp-libvips-darwin-arm64	1.3.3	LGPL-3.0-or-later	build
@vercel/og	0.11.1	MPL-2.0	build
@zk-kit/lean-imt	2.2.5	MIT	browser
circomlib	2.0.5	GPL-3.0	build
fastfile	0.0.20	GPL-3.0	build
ffjavascript	0.3.0	GPL-3.0	build
ffjavascript	0.3.1	GPL-3.0	build
lightningcss	1.32.0	MPL-2.0	build
lightningcss-darwin-arm64	1.32.0	MPL-2.0	build
next	16.3.5	MIT	browser
poseidon-lite	0.3.0	MIT	browser
qrcode-generator	2.0.4	MIT	browser
r1csfile	0.0.48	GPL-3.0	build
react	19.3.0	MIT	browser
react-dom	19.3.0	MIT	browser
snarkjs	0.7.6	GPL-3.0	browser
tweetnacl	1.0.3	Unlicense	browser
viem	2.56.8	MIT	browser
wasmbuilder	0.0.16	GPL-3.0	build
wasmcurves	0.2.2	GPL-3.0	build

4.Getting a copy

4.1

Every licence above requires its own notice to travel with the code, and some require corresponding source to be available. The full licence text for each package is in that package’s own distribution, and in this repository under node_modules once dependencies are installed.

4.2

This list is regenerated from the installed tree with pnpm licences. If it looks stale, it is: rerun it after changing dependencies.

Last changed on 2026-09-23.