Do you want to install Open Preprint Systems (OPS) on your server? Installing this program will allow you to host a preprint server. OPS can be used on a web server that is serving other functions, and requires very little in the way of system requirements.

System Requirements

To run the beta release of OPS 3.2, your web server will need:

If you do not understand these system requirements, consult your department’s technical administrator.

Legal Information

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation version 3 of the License.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA

Please read the software license for a summary of its terms and conditions. Please note that by installing and/or modifying this program, you are agreeing to the terms and conditions listed in the software license.

Download Instructions

For installation instructions, decompress the downloaded file and consult the README document. If you continue to have difficulty installing OPS, review these steps, and consult your technical administrator.

Current Production / Long-Term Support Release (October 4, 2022)

The 3.3.0 line of LTS releases will be supported until January 1st, 2025. Learn more about our Long Term Support (LTS) releases.

Previous OPS Releases

Beta OPS Releases (not formally supported)

Git Access

The source code for OPS is available on GitHub at

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