Composer Developer(s) Nils Adermann, Jordi Boggiano Initial release March 1, 2012 (2012-03-01)[1] Stable release 1.6.2 / January 5, 2018 (2018-01-05)[2] Repository https://github.com/composer/composer Development status Active Written in PHP Operating system Cross-platform Type Package manager License MIT License Website getcomposer.org