Orphaned Metadata Cleanup Tool
Adds Tools > Orphaned Metadata, which counts post, comment, term and user meta rows whose post, comment, term or user no longer exists, and removes them after you confirm.
Snippet Library
Performance snippets for WordPress
Snippets that make WordPress lighter and faster: remove emoji scripts and embeds, control the Heartbeat API, limit revisions and load scripts only where they are needed. For developers and site owners chasing better Core Web Vitals.
Remove Duplicate Post Meta Rows
Run on demand to find custom field rows that are exact duplicates (same post, key and value) and keep only one of each, a common side effect of buggy imports and plugins.
Remove Expired Login Sessions From the Database
Once a day, removes expired login sessions that WordPress keeps in user meta until the user logs in again, which on membership sites and shops adds up to a lot of dead data.
Remove Leftover Data From Uninstalled Plugins
Adds Tools > Leftover Plugin Data, where you enter a prefix (such as old_slider_) to see how many options, post meta, user meta and scheduled tasks use it, and delete them after reviewing the counts.
Speed Up the Custom Fields Meta Box
Skips the slow database query that fills the Custom Fields key dropdown, which can freeze the classic editor on sites with lots of post meta.