The native Solr Admin UI is available for every Opensolr index. It is where you browse documents, run raw queries, inspect the schema and read the core statistics.
01 · How to open it
Sign in to your account
Open the index
Go to Solr in the top navigation and click the index you want to inspect.
Find the quick-action row
At the top of the Index Control Panel, just below the navigation, there is a row of quick actions: Solr Query, Solr Admin, Drupal, WordPress, Auth, CORS, Best Practices.
Click Solr Admin
The native Solr Admin UI opens in a new tab, for that index.
02 · What you can do there
Query
Run raw Solr queries against the index, with every parameter available.
Documents
Browse, add or delete individual documents.
Schema
Inspect field types, dynamic fields and copy fields.
Core Admin
Core status, memory use and uptime.
Logging
Live Solr log output, while you reproduce the problem.