View debugging and performance information on database queries, hooks, conditionals, HTTP requests, redirects and more.
Displays a list of all hooks fired (with arguments passed) on the current page, peak memory usage, SQL queries executed, and theme info
Lists WordPress require() calls mainly for plugin code refactoring.
See which plugins are slowing down your site. This plugin creates a performance report for your site.
Basic plugin profiler. Benchmarks response times with and without a given plugin activated.
Gravity Forms Add On. Adds custom tabindex field to the "Advanced" tab for form fields.
Adds easy to access data for developers, including a fixed toolbar to the bottom of pages that shows query data and memory usage among other data.
Displays a list of each page's SQL queries and the functions calling them that can be searched and sorted by time, type, etc.
Adds PHP profiling support to your WordPress using Facebook's XHProf Profiler.
Used to profile MySQL queries for performance; with backtrace information for each query (caller functions, lines, file names etc.)
Plugin to create a users community on any WordPress blog. You will have user profiles pages, photo galleries, private messaging and much more.