Contribute to Wikimedia open source

Help build the Wikimedia ecosystem with open source software.

Learn how contributing works

Get the basics of how to contribute to MediaWiki and other Wikimedia open source projects.

Nach Thema beitragen

Find ways to contribute, and connect with others with shared interests.

Nach Programmiersprache beitragen

Choose a project to contribute to based on programming language.

Alle Projekte durchsuchen

Search all Wikimedia open source software projects.