Debug Bar Query Tracer
A Debug Bar plugin that lets you trace what plugins are causing database queries.
Consider an alternative
Debug Bar Query Tracer shows warning signs in 2026 — compare the alternatives below before installing. It runs on 10+ sites, is rated 1/5 and was last updated 15 years ago, and scores 18/100 on our health check.
- Small user base (10+ active installs)
- Very few reviews so far
- No update in 15 years
- Only tested up to WordPress 3.2 (latest is 7.1)
How does it stack up?
Side-by-side on installs, updates, ratings & support
Daily downloads
Download spikes usually follow a new release — each site that auto-updates counts as a download.
Rankings
Where Debug Bar Query Tracer stands todayWordPress.org search rankings
Live position in the plugin search, top 100| Keyword | Position |
|---|---|
| backtrace | #35 |
| debug bar | >100 |
| performance | >100 |
| wpdb | >100 |
Version adoption
Share of active sites per release.
Rating breakdown
★★★★★★★★★★ 1 from 1 reviews
About Debug Bar Query Tracer
From the official readme · v0.1Description
The Debug Bar Query Tracer plugin backtraces all calls to WPDB::query() and determines:
- which plugin caused that database query (it ignores all queries that are a part of normal WordPress activity), and
- the function chain that led to that query.
It then displays that information on an additional panel in the Debug Bar
plugin (which is required).
Installation
- Install the Debug Bar plugin
- Activate the Debug Bar plugin
- Install the Query Tracer plugin
- Activate the Query Tracer plugin
Changelog
0.1
- Initial release
0.1.1
- Made sure everything is ready for internationalization
0.1.2
- Bugfixes
- Added better handling for instances where not queries were caused by plugins
Screenshots
For developers
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Best Debug Bar Query Tracer alternatives
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FAQ
Debug Bar Query Tracer: quick answers
Straight answers, pulled from live WordPress.org data.
Live data from WordPress.org · checked Sep 29, 2026
Is Debug Bar Query Tracer free?
Yes. Debug Bar Query Tracer is free to download and use from the official WordPress.org plugin directory.
Is Debug Bar Query Tracer safe to use in 2026?
Debug Bar Query Tracer shows warning signs in 2026 — compare the alternatives below before installing. It runs on 10+ sites, is rated 1/5 and was last updated 15 years ago, and scores 18/100 on our health check.
How many websites use Debug Bar Query Tracer?
Debug Bar Query Tracer is active on 10+ WordPress websites and has been downloaded 5,959 times since it launched in September 2011. It was downloaded 147 times in the last 30 days.
Does Debug Bar Query Tracer work with WordPress 7.1?
Debug Bar Query Tracer is officially tested up to WordPress 3.2.1, while the latest release is 7.1.2. It may still work, but try it on a staging site first.
When was Debug Bar Query Tracer last updated?
The latest version, 0.1, was released on September 29, 2011 (15 years ago).
Who makes Debug Bar Query Tracer?
Debug Bar Query Tracer is developed and maintained by Chris M..
What are the best alternatives to Debug Bar Query Tracer?
The most popular alternatives to Debug Bar Query Tracer are Hagakure (30+ installs), oik bwtrace (20+ installs) and Debug Toolkit (20+ installs).
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