1. Tommaso Grassi
  2. KROME



This is the KROME repository

KROME is a nice and friendly package to model chemistry and microphysics for a wide range of astrophysical simulations. Given a chemical network (in CSV-like format) it automatically generates all the routines needed to solve the kinetic of the system, modelled as system of coupled Ordinary Differential Equations. It provides different options which make it unique and very flexible. Any suggestions and comments are welcomed. KROME is an open-source package, GNU-licensed, and any improvements provided by the users is well accepted. See disclaimer below and GNU License in gpl-3.0.txt.

KROME is available on


You can quickly clone this repository by typing

git clone https://bitbucket.org/tgrassi/krome.git

To get support or receive news about KROME please refer to our user mailing list:

More information on the wiki

Additional material can be found in the Computational Astrochemistry Schools website

Written and developed by Tommaso Grassi

 Starplan, Copenhagen
 Niels Bohr Institute, Copenhagen

and Stefano Bovino

 Hamburger Sternwarte, Hamburg

Contributors: D. Galli, F.A. Gianturco, T.Haugbølle, A. Lupi, J. Prieto, J. Ramsey, D.R.G. Schleicher, D. Seifried, E. Simoncini, E. Tognelli

KROME is provided "as it is", without any warranty. The Authors assume no liability for any damages of any kind (direct or indirect damages, contractual or non-contractual damages, pecuniary or non-pecuniary damages), directly or indirectly derived or arising from the correct or incorrect usage of KROME, in any possible environment, or arising from the impossibility to use, fully or partially, the software, or any bug or malfunction. Such exclusion of liability expressly includes any damages including the loss of data of any kind (including personal data)

Additional notes: this version of KROME is a developer version, while the stable version has been dropped. For this reason we warmly recommend to check the status of the release by using the test website http://kromepackage.org/test/

More information on the "tested" version here https://bitbucket.org/tgrassi/krome/wiki/stable_version