Natron is a cross-platform, open-source nodal compositing application. It is based on open source industry standards such as OpenFX, OpenEXR, OpenColorIO, and OpenImageIO. The feature set consists of realtime playback/RAM cache, multi-threaded rendering, 2d tracking, rotoscoping, grading, animation via f-curves, and OpenFX plugin support from third parties. All of this is contained within a user-friendly interface and an XML-based project file format.
In June of 2012, Alexandre Gauthier began Natron as a personal project. The project won the 2013 Boost Your Code competition hosted by Inria. The prize was a 12-month employment contract with the institute to develop Natron as a free and open-source software.
The first widely accessible public release was 0.92 on June 6, 2014, which included rotoscoping and chroma keying features. Additional features such as motion blur, color management via OpenColorIO, and video tracking were added in subsequent beta releases.