Show PHP Errors to Administrators With ?debug=1
Lets administrators see PHP warnings and notices on screen by adding ?wpide_debug=1 to any address, while visitors and other users never see them, even with WP_DEBUG_DISPLAY off.
Snippet Library
Developer snippets for WordPress
Snippets for developers: debugging helpers, custom cron schedules, body classes, REST API tweaks and admin tools for checking hooks and queries. Building blocks for people who write code for WordPress every day.
Show PHP Version, Memory and Queries in the Admin Footer
Replaces the WordPress version in the bottom right of admin screens with the PHP version, peak memory use and database query count of the current page.
Show Which Conditional Tags Are True in the Admin Bar
Adds a "Conditionals" menu to the front-end admin bar for administrators listing which template conditions are true on the current page, such as is_singular(), is_archive() or is_front_page().
Show Which Functions Run on a Hook
Lets administrators add ?wpide_hook=the_content (or any hook name) to a URL and see the callbacks attached to that hook with their priorities and source files, printed at the bottom of the page.
Show the Admin Screen ID in the Footer
Displays the current screen ID, base, post type and hook suffix in the admin footer for administrators, which is exactly what you need when targeting a screen in your own code.
Show the Current Template in the Admin Bar
Displays the theme template file (and block template, on block themes) used for the current page in the admin bar, for administrators only.
Show the Template Parts Used on a Page
Adds a "Template parts" menu to the front-end admin bar for administrators listing every template part loaded on the page, for both classic themes (get_template_part) and block themes.
Slow Database Query Warning for Admins
When SAVEQUERIES is enabled, lists the slowest database queries of the page with their duration and caller in an HTML comment visible to administrators.
Transients Viewer Under Tools
Adds a Tools > Transients screen listing the cached transients stored in the database with their size and expiry time, and lets administrators delete a single one to force a refresh.
User Meta Inspector on Profile Screens
Shows administrators a read-only table of every stored user meta value at the bottom of user profile screens, with session tokens and other secrets masked.
View the Debug Log in the Admin
Adds a Tools > Debug Log screen that shows the last lines of wp-content/debug.log, so administrators can check errors without FTP access.
wp-config.php Settings Overview Under Tools
Adds a Tools > Config Constants screen that shows the value of important wp-config.php settings, such as debug mode, memory limits, cron, caching and file editing, without opening the file.