In addition to contrib modules that have gone through the project review process, there are less strictly reviewed modules known as sandbox modules. These modules are not included in Drupal's security review process and are not packaged for download. To install them, you must clone the project’s source code using git.
Run the Update Script and “Clear All Caches”
When my site behaves oddly, shows strange errors, or displays a blank page—especially right after enabling a module—the first thing I do is refresh the page I'm on.
After that, I’ve often found that “running the update script,” followed by “clearing all caches,” solves most problems.
“Clear all caches” is a simpler and quicker fix to try, and sometimes it’s effective, so it’s the first thing I do whenever my site is giving me trouble.
This section contains documentation comparing two or more core/contributed modules that provide similar functionality. See also the module comparison page in the old documentation, which has not yet been migrated here.
This page provides a detailed overview of site-building modules.
Cohesion
- CohesionDX.com: A layout system with components, acquired by Acquia.
Gutenberg
- Gutenberg: The Wordpress layout system integrated with Drupal.
This page is incomplete. See also the comparison page in the old documentation section.
Default Content
Introduction
Here is a list of modules that embed views into fields.
- Viewfield
- Views Reference Field
- Views Field View
Modules
Viewfield

Features
Several hundred contributed themes are available for Drupal 8, a complete list can be found here.
Below is extended documentation on just a few of the many available themes.
The bs_base project is a base theme aimed at supporting the complete Drupal theme development workflow from start to finish. It provides a subtheme-ready foundation using the Bootstrap 4.x framework. Additionally, this base theme offers a variety of tools for front-end developers to make their lives easier: Drush generator, SASS inheritance, powerful Gulp workflow, and more.