Block Admin Tools

Block Admin Tools makes working with blocks in the Drupal admin UI easier. Enable only the tools you need:

Block Info: a collapsible panel at the top of block content edit and block configure forms showing the block type name and machine name, description, content block ID, placement machine name, region and theme (or plugin ID and provider for Views and other plugin blocks).

Block Layout Accordion: turns each region on the Block Layout page into a collapsible accordion, with expand/collapse all, a "show occupied regions only" filter and block totals.
Includes Block Layout Accordion. The accordion tool is the same code as the Block Layout Accordion module, by the same maintainer, now part of a wider set of block tools. That module stays available for Drupal 10.

Moving over from Block Layout Accordion? Enable Block Admin Tools: Block Layout Accordion, then uninstall Block Layout Accordion. Your saved expand/collapse preferences carry over. Don't run both at the same time.

Requires Drupal 11.1+. For Drupal 10, use Block Layout Accordion.