Query Monitor – The developer tools… vs KL Debug (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, KL Debug has a higher user rating (5/5 from 1 reviews) while Query Monitor – The developer tools… leads in active installations (200K+ vs 10). Both are free WordPress plugins. Query Monitor – The developer tools… has accumulated 19M+ total downloads while KL Debug has 1.6K+.
Detailed Comparison
| Metric | Query Monitor – The developer tools… | KL Debug | |
|---|---|---|---|
| Rating | 4.9/5 | ► | 5/5 |
| Total Reviews | 464 | ◄ | 1 |
| Active Installs | 200K+ | ◄ | 10 |
| Total Downloads | 19M+ | ◄ | 1.6K+ |
| Support Resolution | 43% | N/A | |
| Last Updated | 2 weeks ago | ◄ | 3 years ago |
| First Released | 2013 | 2020 | |
| Age | 13 years | 6 years | |
| WP Requires | 6.1+ | 5.2+ | |
| PHP Requires | 7.4+ | 7.2+ | |
| Business Model | Free | Free | |
| Latest Version | 3.20.4 | 1.0.5 |
Rating Breakdown
Query Monitor – The developer tools…
KL Debug
Download Trends
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.
KL Debug Reviews
No reviews yet
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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 KL Debug more popular?
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Plugin data sourced from WordPress.org. Comparison and analysis by PluginSift.