Open source

Open-source licences

Last updated 29 October 2026

The Tunnelz Mac app includes software from other authors. Tunnelz is a separate program: it starts that software as its own process and talks to it only through a configuration file and a local connection. The same notices are in the app, under Settings › Acknowledgements…

sing-box 1.14.2

Included as the unmodified official macOS release build. Copyright © 2022 nekohasekai. It is free software under the GNU General Public License, version 3 or later, with this additional term from its authors: no derivative work may use the name or imply association with the application without prior consent. Tunnelz is not made, endorsed or supported by its authors.

Source code of the exact version in Tunnelz:

• sing-box-1.14.2-source.tar.gz, published with every Tunnelz download
• Upstream: github.com/SagerNet/sing-box (v1.14.2)

China rule sets

The lists of Chinese sites and addresses that Smart mode sends direct (geosite-cn, geoip-cn) are rule sets built from community-maintained domain and IP lists; see their source projects for authorship and licences.

Sparkle 2.9.6

Included as the unmodified official framework, which checks for and installs Tunnelz updates. Copyright © 2006–2013 Andy Matuschak and the other Sparkle authors. Under the MIT licence, with the licences of the code it includes. Source: github.com/sparkle-project/Sparkle (2.9.6).

Questions about any of this: hello@tunnelz.app.