Web server

Bitrix24 requires a web server with PHP support.

Supported servers

• Apache 2.4.x or later - recommended.
• nginx 1.16.x or later - requires manual configuration.

PHP requirements

Use a PHP version supported by your hosting provider or matching your local environment. For best performance and security, use the latest stable PHP release.

Required PHP extensions

• GD – used to generate images, graphs, and charts. Required for the Statistics, Advertising, and Helpdesk modules. Also used for CAPTCHA.
• PHP XML – required for the update system. Included in the standard PHP installation. XML support is built in on Windows.
• FreeType – required for CAPTCHA.
• Regular Expression support (POSIX and Perl compatible) – required by the system core.
• Zlib compression – required for data compression and system updates.

We recommend using a PHP accelerator such as OPcache or XCache to improve performance. OPcache is included in PHP 5.5 and later.

mbstring.func_overload=0
default_charset=UTF-8

Additional PHP settings

The following PHP parameters are required:

• Memory limit
• File uploads
• PHP sessions

Memory limit

Set the maximum memory available to PHP:

memory_limit = 256M;

You can configure this value in several ways:

• Edit the php.ini file.
• Set the value in a script using:
  

  ini_set("memory_limit", "256M");

  During installation, this value is added to:
  

  /bitrix/php_interface/dbconn.php

• Add the directive to the .htaccess file:
  

  php_value memory_limit 256M

This method works only if:
• You use Apache (or a compatible server).
• The server allows .htaccess overrides (AllowOverride is not set to None in httpd.conf).
• PHP runs as an Apache module.
• Set the value in httpd.conf:
  

  php_admin_value memory_limit 256M

File uploads

Enable file uploads:

file_uploads = On;

Configure the following parameters:

upload_tmp_dir = <directory path>
     upload_max_filesize = <required file size limit>
     

PHP sessions

Correct session configuration is required.

To prevent the PHPSESSID parameter from appearing in URLs:

• Add the following setting to php.ini
  

  session.use_trans_sid = 0[/c

• Add the following directive to .htaccess:
  php_flag session.use_trans_sid off The demo site already includes this line in the .htaccess file. Uncomment it if needed.

Database requirements

We recommend using MySQL 8.x (Percona Server).

Make sure MySQL support is enabled in PHP.

Disk space

You need at least 10 GB of free disk space for the initial installation. If you store many files or documents, additional space may be required.

RAM

• Minimum requirement: 1 GB RAM
• If you use Push&Pull server: at least 2 GB RAM

Recommended server configurations

Approximate hardware configurations based on the number of users:

• Up to 50 users
  Intel Xeon E3-1230v5 3.4 GHz (4 cores)
  2 × 2 TB HDD for files
  2 × 256 GB SSD for database
  16 GB DDR4 RAM
• 50–100 users
  Intel Xeon E3-1230v5 3.4 GHz (4 cores)
  2 × 2 TB HDD for files
  2 × 256 GB SSD for database
  24 GB DDR4 RAM
• 100–500 users
  Intel Xeon E3-1230v5 3.4 GHz (4 cores)
  2 × 2 TB HDD for files
  2 × 256 GB SSD for database
  32 GB DDR4 RAM
• 500–1000 users
  Intel Xeon E5-1650v4 3.6 GHz (6 cores)
  2 × 4 TB HDD for files
  2 × 480 GB SSD for database
  64 GB DDR4 RAM
• 1000–5000 users
  Intel Xeon E5-1650v4 3.6 GHz (6 cores)
  2 × 4 TB HDD for files
  2 × 480 GB SSD for database
  128 GB DDR4 RAM
• 5000+ users
  Two Intel Xeon E5-1650v4 3.6 GHz servers (6 cores each)
  2 × 4 TB HDD for files
  2 × 480 GB SSD for database
  128 GB DDR4 RAM

Supported browsers

Bitrix24 supports the latest versions of major browsers:

• Chrome 92 or later
• Edge 92 or later
• Firefox 90 or later
• Opera 77 or later
• Safari 12 or later
• Safari for iOS 12 or later
• Chrome for Android 93 or later
• Firefox for Android 92 or later