Query Monitor is the developer tools panel for WordPress. It enables debugging of database queries, PHP errors, hooks and actions, block editor blocks, enqueued scripts and stylesheets, HTTP API calls, and more.
It includes some advanced features such as debugging of Ajax calls, REST API calls, user capability checks, and full support for block themes and full site editing. It includes the ability to narrow down much of its output by plugin or theme, allowing you to quickly determine poorly performing plugins, themes, or functions.
Query Monitor focuses heavily on presenting its information in a useful manner, for example by showing aggregate database queries grouped by the plugins, themes, or functions that are responsible for them. It adds an admin toolbar menu showing an overview of the current page, with complete debugging information shown in panels once you select a menu item.
Query Monitor supports versions of WordPress up to three years old, and PHP version 7.4 or higher.
For complete information, please see the Query Monitor website.
Here’s an overview of what’s shown for each page load:
In addition:
By default, Query Monitor’s output is only shown to Administrators on single-site installations, and Super Admins on Multisite installations.
In addition to this, you can set an authentication cookie which allows you to view Query Monitor output when you’re not logged in (or if you’re logged in as a non-Administrator). See the Settings panel for details.
I maintain several other plugins for developers. Check them out:
Query Monitor is private by default and always will be. It does not persistently store any of the data that it collects. It does not send data to any third party, nor does it include any third party resources. Query Monitor’s full privacy statement can be found here.
Query Monitor aims to be fully accessible to all of its users. Query Monitor’s full accessibility statement can be found here.
Starting from $0 per month.
Rating
Reviewers
443 reviews
Tags
Developed By
John Blackbourn
Quick & Easy
Common Ninja has a large selection of powerful Wordpress plugins that are easy to use, fully customizable, mobile-friendly and rich with features — so be sure to check them out!
Testimonial plugins for Wordpress
Galleries plugins for Wordpress
SEO plugins for Wordpress
Contact Form plugins for Wordpress
Forms plugins for Wordpress
Social Feeds plugins for Wordpress
Social Sharing plugins for Wordpress
Events Calendar plugins for Wordpress
Sliders plugins for Wordpress
Analytics plugins for Wordpress
Reviews plugins for Wordpress
Comments plugins for Wordpress
Portfolio plugins for Wordpress
Maps plugins for Wordpress
Security plugins for Wordpress
Translation plugins for Wordpress
Ads plugins for Wordpress
Video Player plugins for Wordpress
Music Player plugins for Wordpress
Backup plugins for Wordpress
Privacy plugins for Wordpress
Optimize plugins for Wordpress
Chat plugins for Wordpress
Countdown plugins for Wordpress
Email Marketing plugins for Wordpress
Tabs plugins for Wordpress
Membership plugins for Wordpress
popup plugins for Wordpress
SiteMap plugins for Wordpress
Payment plugins for Wordpress
Coming Soon plugins for Wordpress
Ecommerce plugins for Wordpress
Customer Support plugins for Wordpress
Inventory plugins for Wordpress
Video Player plugins for Wordpress
Testimonials plugins for Wordpress
Tabs plugins for Wordpress
Social Sharing plugins for Wordpress
Social Feeds plugins for Wordpress
Slider plugins for Wordpress
Reviews plugins for Wordpress
Portfolio plugins for Wordpress
Membership plugins for Wordpress
Forms plugins for Wordpress
Events Calendar plugins for Wordpress
Contact plugins for Wordpress
Comments plugins for Wordpress
Analytics plugins for Wordpress
Common Ninja Apps
Browse our extensive collection of compatible plugins, and easily embed them on any website, blog, online store, e-commerce platform, or site builder.
Increase User Engagement & Capture Leads
Empowering Your Headlines with Unique Highlights and Personalized Touch
Notify users, encourage action & greatly improve conversions.
Convert Users With Clear, Concise & Responsive Comparison Tables
Create interactive, customizable flashcards for quizzes and learning
Free Online Quiz Maker: Create Engaging Quizzes in Minutes
Showcase Progress in a Beautiful, Animated, Visual Representation
Engage Visitors, Capture Leads, Boost Conversions Effortlessly
Create Stunning Mastodon Feeds & Improve User Experience
Boost Your Site's Appeal with TikTok Carousel Integration
Manage Events, Engage Visitors, and Elevate Your Brand’s Image
Add Testimonials To Improve Credibility & Conversions
More plugins
The Common Ninja Search Engine platform helps website builders find the best site widgets, apps, plugins, tools, add-ons, and extensions! Compatible with all major website building platforms - big or small - and updated regularly, our Search Engine tool provides you with the business tools your site needs!