The Rx Open Tools Developer guide

All you need to know in order to code using our tools or contribute to existing tools, along with general tips, good practices and advices.


We always welcome new contributors! There’s a lot to do, not only writing some code, but also contributing to the documentation and guides, tutorials, translations, bug reports, feature request, communication and public relations… And of course we’re always in need for donations too (unfortunately…).

If you’d like to give a hand to improve our tools and try to make the world better too, head to our contributor’s guide.

The Contributor’s Guide


Become a member

Use or extend Rx Open Tools

All the RxOT are open source, and most of them come with an Application Programming Interface (API) to help you integrate them into your own tools and pipeline. These API are all documented, and available here.

Other resources

Funding & Support



The software this documentation is referring to is licensed under the GNU General Public License.

Copyright (C) 2020 Nicolas Dufresne and Contributors.
This program is free software; you can redistribute them and/or modify them under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program . If not, see


Icons and other graphical elements

All graphical elements, especially icons, are from RxUI by Nicolas Dufresne and RxLaboratory are licensed under CC BY-NC-SA 4.0.

Copyright (C) 2021 Nicolas Dufresne and Contributors.


This Documentation

Copyright (C) 2020 Nicolas Dufresne and Contributors.
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or any later version published by the Free Software Foundation;
with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled “Documentation License”.