GRMHD_con2prim is a general-purpose framework that comes with various methods for the recovery of primitive variables from conservative variables in general-relativistic magnetohydrodynamics (GRMHD) with dynamical spacetimes. GRMHD_con2prim is available at the Zenodo repository with DOI 10.5281/zenodo.1213306. A separate updated development version is available at https://bitbucket.org/dsiegel/grmhd_con2prim. The associated detailed methods paper is: Siegel, D., Moesta, P., Desai, D., Wu, S. (2018), "Recovery schemes for primitive variables in general-relativistic magnetohydrodynamics", ApJS accepted, https://arxiv.org/abs/1712.07538. The DOI of the Zenodo repository (and the url of the development repository if appropriate) as well as the paper mentioned above should be cited in any academic work that uses GRMHD_con2prim or is based on GRMHD_con2prim, i.e., the code published in this repository. While this code is free to use (see license), we ask everyone who uses it to report bugs and to share further development based on this code, for the benefit of everyone else.