GFZRNX is a toolbox designed and created for the needs of the GNSS community. It supports RINEX observation, navigation and meteorological data.

The major tasks include checking, repairing and manipulating (sampling, selection of satellite systems and observation types) of RINEX files, splice/split operations, generation of statistics, metadata extraction, and many more.

You can find the software pages here: https://gnss.gfz.de/services/gfzrnx

The software is available for major platforms (Windows, Linux, Mac OS X, Sun OS) and free-of-charge for non-routine scientific and educational purposes.

If the software is used in a routine environment, the commercial license needs to be applied.