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

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; either version 2 of the License, or (at your option) any later version.

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.

Contacting Us

Technical Questions/Support: Visit our online Bug Report System and Support Forum
General Information about PKP: Contact the Public Knowledge Project Team

Download Instructions

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

OJS 3.X

System Requirements

To run OJS 3.x, your web server will need:

PHP 5.3.x or later with MySQL or PostgreSQL support
A database server: MySQL 4.1 or later OR PostgreSQL 9.1.5 or later
UNIX-like OS recommended (such as Linux, FreeBSD, Solaris, Mac OS X, etc.)

If you do not understand these system requirements, consult your department’s technical administrator. If you are looking for OJS hosting support, PKP Publishing Services offers a full range of hosting and consultation services.

Current Production Release (August 31, 2016)

Getting Ready for OJS 3.0: When Should I Upgrade?

Download OJS 3.0.0 (.tar.gz) (18 MB)

Previous Development Release (August 13, 2013)

Download OJS 3.0 Beta 1 (.tar.gz) (30 MB) This is a development release and not intended for production use
Download OJS 3.0 Alpha 1 (.tar.gz) (10 MB) This is a development release and not intended for production use

OJS 2.X

System Requirements

To run OJS 2.x, your web server will need:

PHP 4.2.x or later (including PHP 5.x) with MySQL or PostgreSQL support
A database server: MySQL 4.1 or later OR PostgreSQL 8.0 or later
UNIX-like OS recommended (such as Linux, FreeBSD, Solaris, Mac OS X, etc.). OJS 2.0.2 and above supports Windows servers (including IIS).

Current Stable Release (August 3, 2016)

Download OJS 2.4.8-1 (.tar.gz) (18 MB)
Download patch from past OJS versions:
- 2.4.8
- 2.4.7-1
- 2.4.7
- 2.4.6
- 2.4.5
- 2.4.4-1
- 2.4.4-0
- 2.4.3
- 2.4.2
- 2.4.1
- 2.4.0
- 2.3.8
- 2.3.7
- 2.3.6
- 2.3.5
- 2.3.4
- 2.3.3-3
- 2.3.3-2
- 2.3.3-1
- 2.3.3
- 2.3.2-1
- 2.3.2
- 2.3.1-2
- 2.3.1-1
- 2.3.1
- 2.3
- 2.2.4
- 2.2.3
- 2.2.2
- 2.2.1
- 2.2
- 2.1.1
- 2.1.0-1
- 2.0.2-1
- 2.0.2
- 2.0.1
- 2.0
See Recommended Patches
View information on upgrading from a previous release

Previous Releases
Note: PKP has discovered a security flaw affecting OJS 2.3.0 to 2.3.6. It is strongly suggested that users upgrade their installations to the most recent release of OJS, or apply the patches from the following Bugzilla entries to correct the problem: Bug 7207.

Note: PKP has discovered a security flaw affecting OJS 2.2.1 to 2.3.5. It is strongly suggested that users upgrade their installations to the most recent release of OJS, or apply the patches from the following Bugzilla entries to correct the problem: Bug 6689, Bug 6696.

Note: PKP has discovered a security flaw affecting OJS 2.3.0.x and 2.3.1.x. It is strongly suggested that users upgrade their installations to the most recent release of OJS, or apply the patches linked from this Bugzilla entry to correct the problem.

Note: PKP has discovered a security flaw affecting all versions of OJS 2.x prior to OJS 2.1. It is strongly suggested that users upgrade their installations to the most recent release of OJS, or apply this patch to correct the problem.

Download OJS 2.4.8 (.tar.gz) (18 MB)
Download OJS 2.4.7-1 (.tar.gz) (18 MB)
Download OJS 2.4.7 (.tar.gz) (18 MB)
Download OJS 2.4.6 (.tar.gz) (17 MB)
Download OJS 2.4.5 (.tar.gz) (16 MB)
Download OJS 2.4.4-1 (.tar.gz) (14 MB)
Download OJS 2.4.4-0 (.tar.gz) (14 MB)
Download OJS 2.4.3 (.tar.gz) (14 MB)
Download OJS 2.4.2 (.tar.gz) (13 MB)
Download OJS 2.4.1 (.tar.gz) (13 MB)
Download OJS 2.4.0 (.tar.gz) (13 MB)
Download OJS 2.3.8 (.tar.gz) (12 MB)
Download OJS 2.3.7 (.tar.gz) (12 MB)
Download OJS 2.3.6 (.tar.gz) (11 MB)
Download OJS 2.3.5 (.tar.gz) (11 MB)
Download OJS 2.3.4 (.tar.gz) (11 MB)
Download OJS 2.3.3-3 (.tar.gz) (11 MB)
Download OJS 2.3.3-2 (.tar.gz) (11 MB)
Download OJS 2.3.3-1 (.tar.gz) (11 MB)
Download OJS 2.3.3 (.tar.gz) (12 MB)
Download OJS 2.3.2-1 (.tar.gz) (11 MB)
Download OJS 2.3.2 (.tar.gz) (10352 KB)
Download OJS 2.3.1-2 (.tar.gz) (10364 KB)
Download OJS 2.3.0 (.tar.gz) (7968 KB)
Download OJS 2.2.4 (.tar.gz) (7144 KB)
Download OJS 2.2.3 (.tar.gz) (6608 KB)
Download OJS 2.2.2 (.tar.gz) (5520 KB)
Download OJS 2.2.1 (.tar.gz) (5776 KB)
Download OJS 2.2 (.tar.gz) (4976 KB)
Download OJS 2.1.1 (.tar.gz) (2468 KB)
Download OJS 2.1 (.tar.gz) (2469 KB)
Download OJS 2.0.2-1 (.tar.gz) (1712 KB)
Download OJS 2.0.1 (.tar.gz) (1464 KB)
Download OJS 2.0 (.tar.gz) (1256 KB)

OJS 1.x

OJS 1.x contains a mild security flaw allowing readers to access the abstract, title, and authorship information of declined and unpublished submissions. If you use OJS 1.x, please apply this patch to correct the problem.

The OJS 1.x line is no longer supported and is not recommended for new installations. Users of OJS 1.x are encouraged to upgrade as soon as possible to the OJS 2.x line, as PKP will eventually drop support for the 1.x -> 2.x migration tools currently included with OJS 2.x.

Previous Releases