Devel is a popular developer module containing a variety of developer and debugging utilities that make it more efficient to perform common development tasks. The Devel module includes Devel Generate, a module for generating example content. Devel also features Drush integration and provides several custom Drush commands. Other modules such as Webprofiler and vardump-enhancement libraries such as Kint can be configured via Devel.
- Quickly generate dummy content (menu items, terms, and nodes) for a development site
- Get insight into variables under the hood
Devel has been a popular developer module and suite of tools since Drupal 6. As such, learning materials exist for Devel that can be quite dated. For current features and compatibility see the Drush project page on drupal.org.