- 3-clause BSD (Retrotranslator license)
- Apache License, Version 2.0
- Creative Commons Attribution-ShareAlike 3.0 (CC BY-SA)
- Eclipse Distribution License - v 1.0
- Eclipse Public License - v 1.0
- GNU LESSER GENERAL PUBLIC LICENSE, Version 2.1
- GPL v.2
- Mozilla Public License Version 2.0
- Nux License
- The JSON License
- The MIT License (MIT)
