Query Monitor – The developer tools… vs WP Mail Debugger (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, WP Mail Debugger has a higher user rating (5/5 from 2 reviews) while Query Monitor – The developer tools… leads in active installations (200K+ vs 300). Both are free WordPress plugins. Query Monitor – The developer tools… has accumulated 19M+ total downloads while WP Mail Debugger has 9.1K+.
Detailed Comparison
| Metric | Query Monitor – The developer tools… | WP Mail Debugger | |
|---|---|---|---|
| Rating | 4.9/5 | ► | 5/5 |
| Total Reviews | 464 | ◄ | 2 |
| Active Installs | 200K+ | ◄ | 300 |
| Total Downloads | 19M+ | ◄ | 9.1K+ |
| Support Resolution | 43% | N/A | |
| Last Updated | 2 weeks ago | ◄ | 1 year ago |
| First Released | 2013 | 2020 | |
| Age | 13 years | 6 years | |
| WP Requires | 6.1+ | 6.3.0+ | |
| PHP Requires | 7.4+ | 7.2.0+ | |
| Business Model | Free | Free | |
| Latest Version | 3.20.4 | 1.1 |
Rating Breakdown
Query Monitor – The developer tools…
WP Mail Debugger
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.
WP Mail Debugger Reviews
No reviews yet
More Plugins Worth Comparing
Top alternatives in the same category as Query Monitor – The developer tools… and WP Mail Debugger
WP Crontrol enables you to take control of the cron events on your WordPress website.
Log PHP, database and JavaScript errors via WP_DEBUG with one click. Conveniently create, view, filter and clear the debug.log file.
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 WP Mail Debugger more popular?
Which has better ratings — Query Monitor – The developer tools… or WP Mail Debugger?
Are Query Monitor – The developer tools… and WP Mail Debugger free?
Which plugin has better support — Query Monitor – The developer tools… or WP Mail Debugger?
Which plugin is updated more frequently?
Plugin data sourced from WordPress.org. Comparison and analysis by PluginSift.