Welcome to the Develop section of the Matomo Developer Zone (formerly Piwik). If you are interested in customizing Matomo, you are in the right place!
This section contains guides that will help you create Plugins and Themes to customize Matomo (Piwik), or to add new features to Matomo.
If you want to get more insight into how Matomo works behind the API's check out our Matomo In Depth section.
Use the sidebar to navigate through the guides. Here is a list of guides to get you started: