Download the PHP package composer/composer without Composer

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All versions of composer with dependencies

Informations about the package composer

Composer - Dependency Management for PHP

Composer helps you declare, manage, and install dependencies of PHP projects.

See for more information and documentation.

Continuous Integration

Installation / Usage

Download and install Composer by following the official instructions.

For usage, see the documentation.


Find packages on Packagist.


IRC channels are on #composer for users and #composer-dev for development.

For support, Stack Overflow also offers a good collection of Composer related questions.

Please note that this project is released with a Contributor Code of Conduct. By participating in this project and its community you agree to abide by those terms.


PHP 5.3.2 or above (at least 5.3.4 recommended to avoid potential bugs)


See also the list of contributors who participated in this project.

Security Reports

Please send any sensitive issue to [email protected] Thanks!


Composer is licensed under the MIT License - see the LICENSE file for details.


Requires php Version ^5.3.2 || ^7.0 || ^8.0
composer/ca-bundle Version ^1.0
composer/semver Version ^1.0
composer/spdx-licenses Version ^1.2
composer/xdebug-handler Version ^1.1
justinrainbow/json-schema Version ^5.2.10
psr/log Version ^1.0
seld/jsonlint Version ^1.4
seld/phar-utils Version ^1.0
symfony/console Version ^2.7 || ^3.0 || ^4.0 || ^5.0
symfony/filesystem Version ^2.7 || ^3.0 || ^4.0 || ^5.0
symfony/finder Version ^2.7 || ^3.0 || ^4.0 || ^5.0
symfony/process Version ^2.7 || ^3.0 || ^4.0 || ^5.0

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