Query Monitor – The developer tools… vs Debug This (2026)
Detailed side-by-side comparison of two WordPress plugins, based on real-time data from WordPress.org.
Query Monitor – The developer tools…
200K+ active installs
Free
Quick Verdict
As of April 2026, Query Monitor – The developer tools… has a higher user rating (4.9/5 from 464 reviews) and leads in active installations (200K+ vs 2.0K+). Both are free WordPress plugins. Query Monitor – The developer tools… has accumulated 19M+ total downloads while Debug This has 158K+.
Detailed Comparison
| Metric | Query Monitor – The developer tools… | Debug This | |
|---|---|---|---|
| Rating | 4.9/5 | ◄ | 4.8/5 |
| Total Reviews | 464 | ◄ | 17 |
| Active Installs | 200K+ | ◄ | 2.0K+ |
| Total Downloads | 19M+ | ◄ | 158K+ |
| Support Resolution | 43% | N/A | |
| Last Updated | 2 weeks ago | ◄ | 10 months ago |
| First Released | 2013 | 2012 | |
| Age | 13 years | 14 years | |
| WP Requires | 6.1+ | 5.2+ | |
| PHP Requires | 7.4+ | 5.6+ | |
| Business Model | Free | Free | |
| Latest Version | 3.20.4 | 0.6.7 |
Rating Breakdown
Query Monitor – The developer tools…
Debug This
Download Trends
Over the past 30 days, Query Monitor – The developer tools… averaged approximately 16,884 daily downloads while Debug This averaged 10.
Recent Reviews
Query Monitor – The developer tools… Reviews
The most useful plugin of all time
If you’ve even the smell of an issue with your site, this will track it down so that you can fix it. An indispensable tool for developers.
Good
Good. Shows a lot of useful stuff. Note that you will need to add /wp-content/db.php to your gitignore. This topic was modified 1 month, 3 weeks ago by kloddant.
Quá tuyệt vời, plugin này web nào tôi cũng cài
Tôi thường tạo các demo web, blog với những lựa chọn khác nhau về theme, plugin. Việc theo dõi hiệu suất backend là rất quan trọng để chọn ra được một combo tốt về hiệu suất.
Debug This Reviews
Great plugin
Very nice, even the phpinfo() colors are displayed correctly.
Very useful
Thank you for your great work!
Awesome and all in one.
Great plugin to truly get under the WordPress hood. Thanks.
More Plugins Worth Comparing
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WP Crontrol enables you to take control of the cron events on your WordPress website.
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Simply and easy-to-use the customize for Admin and Frontend. A lot of custom filters and actions, and included the developer tools.
A profiler to measure the performance of your WordPress plugins and themes.
Frequently Asked Questions
Is Query Monitor – The developer tools… or Debug This more popular?
Which has better ratings — Query Monitor – The developer tools… or Debug This?
Are Query Monitor – The developer tools… and Debug This free?
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Plugin data sourced from WordPress.org. Comparison and analysis by PluginSift.