All recommended versions are based on the latest released version of each series.

Requirements for Supported Software

Requirements for Joomla! 3.x

Software Recommended Minimum More information
PHP[1]
(Magic Quotes GPC off)
5.6 or 7.0 + 5.3.10 http://www.php.net
Supported Databases:
MySQL[2]
(InnoDB support required)
5.5.3 + 5.1 http://www.mysql.com
SQL Server 10.50.1600.1 + 10.50.1600.1 https://www.microsoft.com/sql
PostgreSQL 9.1 + 8.3.18 http://www.postgresql.org/
Supported Web Servers:
Apache[3]
(with mod_mysql, mod_xml, and mod_zlib)
2.4 + 2.0 http://www.apache.org
Nginx 1.8 + 1.0 https://www.nginx.com/resources/wiki/
Microsoft IIS[6] 7 7 https://www.iis.net

Requirements for Unsupported Software

Requirements for Joomla! 1.6, 1.7, & 2.5 - Support ended on December 31, 2014

Software Recommended Minimum More information
PHP 5.6 5.2.4 http://www.php.net
Supported Databases:
MySQL 5.0.4 + 5.0.4 http://www.mysql.com
SQL Server[5] 10.50.1600.1 + 10.50.1600.1 https://www.microsoft.com/sql
Supported Web Servers:
Apache[3]
(with mod_mysql, mod_xml, and mod_zlib)
2.2 + 2.0 http://www.apache.org
Nginx 1.1 + 1.0 https://www.nginx.com/resources/wiki/
Microsoft IIS[6] 7 7 https://www.iis.net

Requirements for Joomla! 1.5 - Support ended on December 31, 2012

Software Recommended Minimum More information
PHP[4] 5.3 4.3.10 http://www.php.net
Supported Databases:
MySQL 4.1.x + 3.23 http://www.mysql.com
Supported Web Servers:
Apache[3]
(with mod_mysql, mod_xml, and mod_zlib)
2.0 + 1.3 http://www.apache.org
Microsoft IIS[6] 7 6 https://www.iis.net

Requirements for Joomla! 1.0 - Support ended on July 22, 2009

Software Recommended Minimum More information
PHP[4] 5.3 4.2 http://www.php.net
Supported Databases:
MySQL 4.1.x + 3.23 http://www.mysql.com
Supported Web Servers:
Apache[3]
(with mod_mysql, mod_xml, and mod_zlib)
2.x + 1.3 http://www.apache.org
Microsoft IIS[6] 7 6 https://www.iis.net

Footnotes

[1] PHP 5.3.1 is required for versions 3.0 through 3.2. At 3.3, the minimum is raised to PHP 5.3.10. Joomla! versions 3.5 and later are compatible with PHP 7.

[2] As of Joomla! 3.5, support for MySQL's `utf8mb4` character set is added and used by default by servers which support it

[3] In order to use SEO URLs, you will need to have the Apache mod_rewrite extension installed.

[4] Do not use PHP 4.3.9, 4.4.2 or 5.0.4. These releases have known bugs that will interfere with installation. Zend Optimizer 2.5.10 for PHP 4.4 also has serious bugs and you should ask your host to upgrade to a newer version. Joomla! versions 1.5.15 and later are compatible with PHP 5.3. Note that the OpenID library is not compatible with PHP 5.3.

[5] Support for Microsoft SQL Server was added for the 2.5 release; 1.6 and 1.7 do not have this support.

[6] For Microsoft IIS (depending on your setup) you may need the following:

For further assistance using Microsoft IIS, visit the Joomla! IIS forum.

Configuration Options

If installing on a local computer, there are a number of packages that will help you get set up quicker than individual installations:

  • LAMP (Linux) - Most Linux distributions come with a pre-configured LAMP server.
  • WAMP (Windows) - For more information, visit the WampServer homepage
  • MAMP (Macintosh) - For more information, visit the MAMP homepage
  • XAMPP (Multi-platform) - Not for live sites. For more information, visit the XAMPP homepage

If you need other options, we recommend visiting our installation forums for more information.