Kanboard Documentation

Requirements and Prerequisites

Prerequisites to install and use Kanboard.

Server Side

Compatible Operating Systems

  • Alpine Linux
  • Linux Ubuntu
  • Linux RHEL (RedHat, Centos, Oracle Linux, RockyLinux, etc)
  • Linux Debian
  • FreeBSD
  • Microsoft Windows
The recommended operating system is GNU/Linux (Debian/Ubuntu/RHEL/Alpine Linux).

Compatible Databases

  • Sqlite >= 3.7
  • Mysql >= 5.6
  • MariaDB >= 10
  • Postgresql >= 9.4
  • Microsoft SQL Server (experimental - available since v1.2.25)

Which database to choose?

  • Sqlite: Single user or small team (almost no concurrency)
  • Mysql/Postgres: Larger team, high-availability configuration
  • The recommended database is Postgresql.
  • Do not use Sqlite with NFS or with Docker.

Compatible Web Servers

  • Apache HTTP Server
  • Nginx
  • Microsoft IIS
  • Caddy Server

Kanboard is pre-configured to work with Apache (URL rewriting).

  • Kanboard is NOT compatible with Apache mod_security.
  • If you use Apache, you must have the module mod_version.

PHP Versions

  • PHP >= 7.4
  • PHP 8.x
  • Since version 1.2.22, Kanboard requires at least PHP 7.4
  • Since version 1.2.13, Kanboard requires at least PHP 7.2
  • The latest version of PHP is recommended.

PHP Extensions Required

  • pdo_sqlite (Only if you use Sqlite)
  • pdo_mysql (Only if you use Mysql/MariaDB)
  • pdo_pgsql (Only if you use Postgres)
  • gd
  • mbstring
  • openssl
  • json
  • hash
  • ctype
  • session
  • filter
  • xml
  • SimpleXML
  • dom

Optional PHP extensions

  • zip: Used to install plugins from web ui
  • ldap: Only for LDAP integration
  • curl: Use cURL as HTTP client


  • Modern Linux or Unix operating system with the latest version of PHP.
  • Best performances are obtained with the latest version of PHP with OpCode caching activated.

Client Side


Always use a modern browser with the latest version if possible:

  • Safari
  • Google Chrome
  • Mozilla Firefox
  • Microsoft Edge
The recommended browsers are Mozilla Firefox or Google Chrome.
Microsoft Internet Explorer is not supported since Kanboard version 1.2.11.


  • Laptop or desktop with a screen resolution >= 1366 x 768
  • Tablet with a screen resolution >= 1024 x 768

Note that using Kanboard with a smartphone should work, but using the board on a small screen is not always pratical.