10up

Taylor Lovett

Thorsten Ott

oscarssanchez

Felipe Elia

vhauri

Chris Marslender

ElasticPress

A fast and flexible search and query engine for WordPress.

Mr Pete

WP Tuner

Easily, powerfully, discover why your blog or plugin is slow or cranky. Comprehensive time and database access analyzer. WPmu. multi-lingual.

Avram

Ultimate DebugBar

Ultimate debug bar for your Wordpress website.

A5hleyRich

DebugHawk – WordPress Performance Monitoring & Debugging

Monitor WordPress performance, debug slow sites, track Core Web Vitals, database queries, memory usage, and cache effectiveness.

Vladimir Kolesnikov

SQL Monitor

Almost every developer knowns that the poor performance in many cases is due to poorly designed database or SQL queries

Rajin Sharwar

Admin Speedo

AdminSpeedo is a simple method of boosting your WordPress admin dashboard and freeing your site code from unnecessary and not needed items.

ttodua

Puvox Software

Find Slow Functions & Actions & Filters & Hooks (Debug Bar)

[ ✅ 𝐒𝐄𝐂𝐔𝐑𝐄 𝐏𝐋𝐔𝐆𝐈𝐍𝐒 b𝓎 𝒫𝓊𝓋𝑜𝓍] THE ONLY PLUGIN which finds & measures slow functions, actions, filters ...

Web Guy

VeryEasy

Speed Made Easy

A set and forget solution for WordPress speed.

sevenspark

The new accessibility javascript in the Appearance > Menus panel in WordPress 3.6 can significantly slow the page load speed when using a large number of menu items (> 50). This plugin defers the accessibility processing to eliminate the scripting bottleneck and allow the Appearance > Menus screen to run much faster and more responsively.
<a href="http://sevenspark.com/wordpress/speeding-up-the-appearance-menus-screen-in-wordpress-3-6" rel="nofollow ugc">Full details</a>
This solution is fairly rough. Hopefully we can develop a robust solution that can eventually become part of the core. Pull requests through GitHub are welcome.

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