Debug Bar vs KL Debug (2026)
Detailed side-by-side comparison of two WordPress plugins, based on real-time data from WordPress.org.
VS
VS
Quick Verdict
As of April 2026, KL Debug has a higher user rating (5/5 from 1 reviews) while Debug Bar leads in active installations (20K+ vs 10). Both are free WordPress plugins. Debug Bar has accumulated 2.1M+ total downloads while KL Debug has 1.6K+.
Detailed Comparison
| Metric | Debug Bar | KL Debug | |
|---|---|---|---|
| Rating | 4.1/5 | ► | 5/5 |
| Total Reviews | 69 | ◄ | 1 |
| Active Installs | 20K+ | ◄ | 10 |
| Total Downloads | 2.1M+ | ◄ | 1.6K+ |
| Support Resolution | N/A | N/A | |
| Last Updated | 1 month ago | ◄ | 3 years ago |
| First Released | 2010 | 2020 | |
| Age | 16 years | 6 years | |
| WP Requires | 3.4+ | 5.2+ | |
| PHP Requires | false+ | 7.2+ | |
| Business Model | Free | Free | |
| Latest Version | 1.1.8 | 1.0.5 |
Rating
4.1/5Debug Bar
►KL Debug5/5
Total Reviews
69Debug Bar
◄KL Debug1
Active Installs
20K+Debug Bar
◄KL Debug10
Total Downloads
2.1M+Debug Bar
◄KL Debug1.6K+
Support Resolution
N/ADebug Bar
KL DebugN/A
Last Updated
1 month agoDebug Bar
◄KL Debug3 years ago
First Released
2010Debug Bar
KL Debug2020
Age
16 yearsDebug Bar
KL Debug6 years
WP Requires
3.4+Debug Bar
KL Debug5.2+
PHP Requires
false+Debug Bar
KL Debug7.2+
Business Model
FreeDebug Bar
KL DebugFree
Latest Version
1.1.8Debug Bar
KL Debug1.0.5
Rating Breakdown
Debug Bar
4.1/5(69 reviews)
5
74%
4
4%
3
1%
2
1%
1
19%
KL Debug
5/5(1 reviews)
5
100%
4
0%
3
0%
2
0%
1
0%
Download Trends
Recent Reviews
Debug Bar Reviews
by Lene
Simple and easy
It works…
by Michael Galli
Works perfectly
Finding bugs is very easy and efficient with that plugin. I can highly recommend it.
by James Hunt
Seemingly abandoned
Debug Bar is still listed in WordPress’s own developer documentation as a go-to debugging tool, yet it hasn’t been updated in over a year and throws PHP errors. It’s a clear example of Automattic prom
KL Debug Reviews
No reviews yet
Frequently Asked Questions
Is Debug Bar or KL Debug more popular?
Debug Bar has 20K+ active installations while KL Debug has 10. Debug Bar is the more widely-used plugin as of April 2026.
Which has better ratings — Debug Bar or KL Debug?
Debug Bar has a 4.1/5 rating from 69 reviews, while KL Debug has a 5/5 rating from 1 reviews.
Are Debug Bar and KL Debug free?
Debug Bar is free and KL Debug is free. Both can be downloaded from the WordPress.org plugin directory.
Which plugin has better support — Debug Bar or KL Debug?
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?
Debug Bar was last updated 1 month ago and KL Debug was last updated 3 years ago.
Plugin data sourced from WordPress.org. Comparison and analysis by PluginSift.