Query Monitor – The developer tools… vs Output Buffer Tester (2026)

Detailed side-by-side comparison of two WordPress plugins, based on real-time data from WordPress.org.

Query Monitor – The developer tools…

Query Monitor – The developer tools…

4.9(464)

200K+ active installs

Free

Updated 2 weeks ago
View Query Monitor – The developer tools…
VS
Output Buffer Tester

Output Buffer Tester

0(0)

10 active installs

Free

Updated 8 years ago
View Output Buffer Tester

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 10). Both are free WordPress plugins. Query Monitor – The developer tools… has accumulated 19M+ total downloads while Output Buffer Tester has 1.7K+.

Detailed Comparison

Rating
4.9/5Query Monitor – The developer tools…
Output Buffer TesterN/A
Total Reviews
464Query Monitor – The developer tools…
Output Buffer Tester0
Active Installs
200K+Query Monitor – The developer tools…
Output Buffer Tester10
Total Downloads
19M+Query Monitor – The developer tools…
Output Buffer Tester1.7K+
Support Resolution
43%Query Monitor – The developer tools…
Output Buffer TesterN/A
Last Updated
2 weeks agoQuery Monitor – The developer tools…
Output Buffer Tester8 years ago
First Released
2013Query Monitor – The developer tools…
Output Buffer Tester2018
Age
13 yearsQuery Monitor – The developer tools…
Output Buffer Tester8 years
WP Requires
6.1+Query Monitor – The developer tools…
Output Buffer Tester4.0+
PHP Requires
7.4+Query Monitor – The developer tools…
Output Buffer Tester5.2+
Business Model
FreeQuery Monitor – The developer tools…
Output Buffer TesterFree
Latest Version
3.20.4Query Monitor – The developer tools…
Output Buffer Tester1.0.1

Rating Breakdown

Query Monitor – The developer tools…

4.9/5(464 reviews)
5
97%
4
1%
3
0%
2
0%
1
2%

Output Buffer Tester

0/5(0 reviews)
5
0%
4
0%
3
0%
2
0%
1
0%

Recent Reviews

Query Monitor – The developer tools… Reviews

by dochara

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.

by kloddant

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.

by tinhnguyenblog

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.

Output Buffer Tester Reviews

No reviews yet

Frequently Asked Questions

Is Query Monitor – The developer tools… or Output Buffer Tester more popular?
Query Monitor – The developer tools… has 200K+ active installations while Output Buffer Tester has 10. Query Monitor – The developer tools… is the more widely-used plugin as of April 2026.
Which has better ratings — Query Monitor – The developer tools… or Output Buffer Tester?
Query Monitor – The developer tools… has a 4.9/5 rating from 464 reviews, while Output Buffer Tester has a 0/5 rating from 0 reviews.
Are Query Monitor – The developer tools… and Output Buffer Tester free?
Query Monitor – The developer tools… is free and Output Buffer Tester is free. Both can be downloaded from the WordPress.org plugin directory.
Which plugin has better support — Query Monitor – The developer tools… or Output Buffer Tester?
Support resolution data is not available for all plugins. Check each plugin's WordPress.org support forum for current response quality.
Which plugin is updated more frequently?
Query Monitor – The developer tools… was last updated 2 weeks ago and Output Buffer Tester was last updated 8 years ago.

Plugin data sourced from WordPress.org. Comparison and analysis by PluginSift.