Licences

Material on this site comes from several sources and is published under different terms. Please check the licence for anything you reuse.

RISC OS

RISC OS is an open source operating system owned by RISC OS Developments Ltd and licensed primarily under the Apache License, Version 2.0. Some components carry other licences; see the licence files in each component.

Programmer's Reference Manuals

The Library links to the RISC OS 5 Programmer's Reference Manuals published online by RISC OS Open Ltd. Those pages stay on RISC OS Open's site, under their terms.

Downloads

RISC OS One ROMs and disc images contain RISC OS 5 components under their own licences. NetSurf is licensed under the GNU GPL version 2; its source is available from netsurf-browser.org. Licence files are included in each download.

This website

The site runs on RISC OS Open Ltd's website applications from gitlab.riscosopen.org/website: Hub, Radiant, Beast, Instiki, Typo and Collaboa. Radiant, Typo, Collaboa and the Hub library are MIT-licensed; each application is used under its own licence.

The RISC OS One name, logo, Frosted artwork and site design are copyright RISC OS Technologies 2026.