tempstore_manager

TempStore Manager
Introduction
TempStore Manager provides an admin UI for monitoring and safely clearing
Drupal's TempStore data (both private and shared). It shows current entry
counts by type and lets administrators selectively clear all, private-only,
or shared-only TempStore collections with a confirmation step.
Features

Live counts of private, shared, and total TempStore entries
Selective clearing: all, private only, or shared only
Confirmation checkbox to prevent accidental data loss
Permission-controlled access

Requirements

Drupal core 10.3 or 11

Installation
Install as you would normally install a contributed Drupal module. See
Installing Drupal Modules
for further information.
drush en tempstore_manager
Configuration
No configuration is required. After enabling the module:

Grant the Administer TempStore Manager permission to trusted
administrators.
Navigate to Administration > Configuration > Development >
TempStore Manager (/admin/config/development/tempstore-manager).

The page displays current TempStore entry counts. Select a clear mode,
check the confirmation box, and submit to delete the selected entries.