MediaWiki is a free server-based software, licensed under the GNU General Public License (GPL). It’s designed to run on a large server farm for a website that gets millions of hits per day.
MediaWiki is an extremely powerful, scalable software and a feature-rich wiki implementation that uses PHP to process and display data stored in a database, such as MySQL.
Pages use MediaWiki’s wikitext format so that users without knowledge of HTML or CSS can edit them easily.
When a user submits an edit to a page, MediaWiki writes it to the database, but without deleting the previous versions of the page, thus allowing easy reverts in case of vandalism or spamming. MediaWiki can manage image and multimedia files, too, which are stored in the filesystem. For large wikis with lots of users, MediaWiki supports caching and can be easily coupled with proxy server software.
Do you love software freedom and open source communities? Do you like the MediaWiki software, Wikipedia, or any other Wikimedia sites?
Then, contribute your skills here and learn from other contributors. This page will help you get started by providing an overview of areas where you can get involved.
The content of all Wikimedia projects is released under free licenses. Write code to access, remix and grow this immense pool of free knowledge. Follow the tutorial to get started with the API, available on all MediaWiki wikis, and other APIs for content and Wikidata. Other open data sources, including XML and SQL dumps, are also available.
Our code is all free and open source. Choose a project, provide a patch, and fix a task!
Create bots to process content and host your tools on Toolforge. Hack on mobile apps or on desktop applications. Or help Site Reliability Engineering maintain the server configuration.
Help improve the quality of our projects through automated browser testing and continuous integration. Report your first bug or help with existing bug reports.
As a Tech ambassador, help other Wikimedians with technical issues, relay Tech News to inform users about what is going to impact them, and join the ambassadors’ group and the mailing list to act as a bridge between developers and your local wiki.
English writers can improve the MediaWiki documentation, other essential support pages and, in fact, any page of this website.
If you are fluent in a language other than English you can join the effort by translating this website and the MediaWiki software.
Help users and developers looking for answers at the support desk or the MediaWiki communication and social media channels.
Help apply the Wikimedia design principles in projects looking for UX feedback.
Meet other community members online or in person.
There are several ways you can get into contact with the Wikimedia community.
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