Requirements for Supported Software
Requirements for Joomla! 4.x
| Software | Recommended | Minimum[7] | More Information |
|---|---|---|---|
| PHP | 8.0 | 7.2.5 | https://www.php.net |
| Supported Databases | |||
| MySQL | 5.6 + | 5.6 | https://www.mysql.com |
| PostgreSQL | 11.0 + | 11.0 | (ext/pgsql support in PHP has been removed. Now uses the PostgreSQL PDO Driver) |
| Supported Web Servers | |||
| Apache[3] | 2.4 + | 2.4 | (with mod_mysql, mod_xml, and mod_zlib) |
| Nginx | 1.18 + | 1.10 | https://www.nginx.com/resources/wiki/ |
| Microsoft IIS[6] | 10 + | 8 | https://www.iis.net |
Requirements for Joomla! 3.x
| Software | Recommended | Minimum | More Information |
|---|---|---|---|
| PHP[1] | 8.0 | 5.3.10 |
(Magic Quotes GPC, MB String Overload = off) (Zlib Compression Support, XML Support, INI Parser Support, JSON Support, MB Language = Default) |
| Supported Databases | |||
| MySQL[2] | 5.5.3 + | 5.1 | (InnoDB support required) |
| SQL Server | 10.50.1600.1 + | 10.50.1600.1 | https://www.microsoft.com/sql |
| PostgreSQL | 9.1 + | 8.3.18 | https://www.postgresql.org/ |
| Supported Web Servers | |||
| Apache[3] | 2.4 + | 2.0 | (with mod_mysql, mod_xml, and mod_zlib) |
| 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
| Software | Recommended | Minimum | More Information |
|---|---|---|---|
| PHP | 5.6 | 5.2.4 | https://www.php.net |
| Supported Databases | |||
| MySQL | 5.0.4 + | 5.0.4 | https://www.mysql.com |
| SQL Server[5] | 10.50.1600.1 + | 10.50.1600.1 | https://www.microsoft.com/sql |
| Supported Web Servers | |||
| Apache[3] | 2.2 + | 2.0 | (with mod_mysql, mod_xml, and mod_zlib) |
| 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
| Software | Recommended | Minimum | More Information |
|---|---|---|---|
| PHP[4] | 5.3 | 4.3.10 | https://www.php.net |
| Supported Databases | |||
| MySQL | 4.1.x + | 3.23 | https://www.mysql.com |
| Supported Web Servers | |||
| Apache[3] | 2.0 + | 1.3 | (with mod_mysql, mod_xml, and mod_zlib) |
| Microsoft IIS[6] | 7 | 6 | https://www.iis.net |
Requirements for Joomla! 1.0
| Software | Recommended | Minimum | More Information |
|---|---|---|---|
| PHP[4] | 5.3 | 4.3.10 | https://www.php.net |
| Supported Databases | |||
| MySQL | 4.1.x + | 3.23 | https://www.mysql.com |
| Supported Web Servers | |||
| Apache[3] | 2.0 + | 1.3 | (with mod_mysql, mod_xml, and mod_zlib) |
| 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:
- PHP - Installation instructions
- MySQL - Installation instructions
- Microsoft URL Rewrite Module - Required for SEO URLs only. For more information, click here. For information about using ISAPI, click here.
- FastCGI - Download for IIS6. Download for IIS7.
For further assistance using Microsoft IIS, visit the Joomla! IIS forum.
[7] This is the minimum version which is guaranteed to work, older versions may work but are not supported.
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 (Apple OS) - 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 or checking out our list of optional technical requirements.