WPIntell

Market

debug bar

Debug Bar matters only if the evidence supports a paid workflow around shipping custom code and site changes without breaking production, not a list of isolated fixes. The current commercial thesis is: Custom code, snippets, headers, and editor changes can silently break sites or create hard-to-debug handoffs. The entry wedge is to preflight custom code changes, detect risky snippets, and package rollback-ready diagnostics.

Proof Health

Open evidence

Commercial opportunities need traceable source links before they are treated as build-worthy.

78 / 100 rows with source links

78.0% of this page's analysis has direct source links.

0 build-decision rows missing links

0 rows here require auditable proof before promotion.

22 rows with no attached evidence

0 rows have source counts but still need direct links.

Opportunity Summary

Full report

Build a developer change safety and site customization plugin for developers, agencies, and technical site owners: Custom code, snippets, headers, and editor changes can silently break sites or create hard-to-debug handoffs. The first wedge is to preflight custom code changes, detect risky snippets, and package rollback-ready diagnostics.

The unmet need is not the individual complaint. It is the recurring business workflow: Custom code, snippets, headers, and editor changes can silently break sites or create hard-to-debug handoffs. Current stage: commercial watchlist.

Competitors

13 shown
Query Monitor 200.0K installs · 4.9
weak incumbent
-96.8%momentum 64.1weakness 16/31pain/praise

Pain still appears around bugs, compatibility despite praise for quality, performance.

BlackBox Debug Bar 90 installs · 4.6
praise owner
-95.9%momentum 63.2weakness 17/13pain/praise

Pain still appears around bugs, compatibility despite praise for quality, easy.

Debug Bar Cron 400 installs · 5.0
praise owner
-97.8%momentum 49.1weakness 3/3pain/praise

Pain still appears around bugs, setup despite praise for bugs, quality.

BugFu Console Debugger 300 installs · 4.8
praise owner
-96.1%momentum 44.7weakness 3/16pain/praise

Pain still appears around bugs, performance despite praise for easy, quality.

Debug Bar Rewrite Rules 800 installs · 5.0
praise owner
-95.5%momentum 40.5weakness 1/5pain/praise

Pain still appears around bugs, compatibility despite praise for easy, value.

Debug Bar Constants 20 installs · 5.0
praise owner
-96.8%momentum 40.4weakness 1/1pain/praise

Pain still appears around bugs, compatibility despite praise for support, quality.

Debug Bar Transients 40 installs · 5.0
praise owner
-95.7%momentum 39.4weakness 1/1pain/praise

Pain still appears around bugs, performance despite praise for quality.

Debug Bar Post Types 40 installs · 4.0
watchlist
-96.3%momentum 43.3weakness 2/1pain/praise

Open gap: users report bugs, support without a matching collected praise theme.

Debug Bar Shortcodes 30 installs · 5.0
praise owner
-96.8%momentum 35.7weakness 0/3pain/praise

Weakness evidence: stale update history.

Black Bar 600 installs · 5.0
praise owner
-96.8%momentum 18.5weakness 0/9pain/praise

Owned praise to avoid copying: quality, bugs.

complaint Broken, Can't Activate the plugin

Broken, Can't Activate the plugin: users show bugs, support, setup pain that may indicate a product gap.

Debug Bar Post Types · Broken, Can't Activate the plugin Broken, Can’t Activate the plugin https://wordpress.org/plugins/debug-bar-post-types/ Broken, Can’t Activate the plugin https://wordpress.org/plugins/debug-bar-post-types/ Hi @guatamarya, Sorry to hear you’re having trouble with the plugin.
mixed Apache trottles

Apache trottles: users show security, bugs, compatibility pain that may indicate a product gap.

BugFu Console Debugger · Apache trottles When I look at the Apache access.log, BugFu is spamming the log.
mixed conflict with Debug Bar Roles and Capabilities

conflict with Debug Bar Roles and Capabilities: users show bugs, compatibility, performance pain that may indicate a product gap.

Debug Bar Post Types · conflict with Debug Bar Roles and Capabilities I can’t tell which plugin has the incompatibility, but when I have both Debug Bar Post Types and Debug Bar Roles and Capabilities active, the roles and capabilities do not show.
mixed fixed the admin only display problem

fixed the admin only display problem: users show security, bugs, compatibility pain that may indicate a product gap.

BlackBox Debug Bar · fixed the admin only display problem I have wanted to use this on a live site to help find and fix a bug, but the problem is/was it doesn’t have any role filtering so it would be publicly viewable… So I added this hack to not run the Blackbox display output unless you are of an administrator role.
mixed Fix for bug in version 0.1

Fix for bug in version 0.1: users show bugs, compatibility, support pain that may indicate a product gap.

Debug Bar Actions and Filters Addon · Fix for bug in version 0.1 Hi there, Great little plugin, but it threw a fatal error (I think with a buddy press filter) I re-wrote the debug_bar_action_and_filters_addon_display_filters() function to fix this… function debug_bar_action_and_filters_addon_display_filters() { global $wp_filter; $output = ""; $output .= "<div class='hooks_listing_container'>";
mixed Can’t open overview in frontend

Can’t open overview in frontend: users show bugs, compatibility, missing feature pain that may indicate a product gap.

Query Monitor · In the dropdown I select an option but no block with options is showing from the bottom.
mixed Clean-up Git Files Please

Clean-up Git Files Please: users show bugs, compatibility, support pain that may indicate a product gap.

Debug Bar Post Types · Clean-up Git Files Please Hello, I use Git for my entire WP install and found when your plugin is installed that I get a conflict upon initially doing a git add; fatal: Not a git repository: wp-content/plugins/debug-bar-post-types/inc/debug-bar-pretty-output/../../.git/modules/inc/debug-bar-pretty-output Which lead me to finding .git within your inc/debug-ba
mixed Undefined index 'value' in class-debug-bar-transients.php

Undefined index 'value' in class-debug-bar-transients.php: users show security, bugs, compatibility pain that may indicate a product gap.

Debug Bar Transients · Undefined index 'value' in class-debug-bar-transients.php This PHP notice is spamming my logs… [02-Jul-2013 03:22:46 UTC] PHP Notice: Undefined index: value in /plugins/debug-bar-transients/class-debug-bar-transients.php on line 346 http://wordpress.org/extend/plugins/debug-bar-transients/ This PHP notice is spamming my logs… [02-Jul-2013 03:22:46 UTC] PHP N
mixed very helpful but a bit insecure

very helpful but a bit insecure: users show security, performance, support pain that may indicate a product gap.

BlackBox Debug Bar · very helpful but a bit insecure Thank you for that tool!
complaint date() expects parameter 2 to be long

date() expects parameter 2 to be long: users show security, bugs, compatibility pain that may indicate a product gap.

Debug Bar Cron · date() expects parameter 2 to be long This is spamming my error.log: PHP Warning: date() expects parameter 2 to be long, string given in /web/m/y/myway2fitness.se/public_html/dwds/wp-content/plugins/debug bar cron/class-debug-bar-cron.php on line 193 Any ideas?
complaint Nice when it works, often doesn’t

Nice when it works, often doesn’t: users show bugs, performance, support pain that may indicate a product gap.

BugFu Console Debugger · Nice when it works, often doesn’t Totally broken with Litespeed cache, instantly causes out-of-memory errors and other seriously unreliable operation including failure of pages to load with “there has been a critical error on this website”.
mixed conflict with Debug Bar Post Types

conflict with Debug Bar Post Types: users show bugs, compatibility, performance pain that may indicate a product gap.

Debug Bar Roles and Capabilities · conflict with Debug Bar Post Types I can’t tell which plugin has the incompatibility, but when I have both Debug Bar Post Types and Debug Bar Roles and Capabilities active, the roles and capabilities do not show.
mixed PHP 7 not supported

PHP 7 not supported: users show bugs, compatibility, support pain that may indicate a product gap.

Black Bar · PHP 7 not supported In version 4.0, some php 8 only functions were introduced, like str_starts_with() .
mixed Activation error

Activation error: users show bugs, compatibility, setup pain that may indicate a product gap.

BugFu Console Debugger · Activation error I LOVE BugFu, but I’m seeing an activation error from v1.2.3, on a site running wp 4.6.8 (I’m unable to update this site’s WP to 4.9 yet).
mixed Fatal Error after plugin update to version 4.0.2

Fatal Error after plugin update to version 4.0.2: users show bugs, compatibility, support pain that may indicate a product gap.

Black Bar · Fatal Error after plugin update to version 4.0.2 After updating plugin to the latest version (4.0.2) I got a fatal error: Uncaught TypeError: str_contains(): Argument #1 ($haystack) must be of type string, array given in /var/www/html/wp-includes/blocks.php:841 According to the stack trace the issue is here: #8 /var/www/html/wp-content/plugins/blackbar/plugi
mixed support for invokable objects (a.k.a. __invoke magic function)

support for invokable objects (a.k.a. __invoke magic function): users show bugs, compatibility, support pain that may indicate a product gap.

Debug Bar Actions and Filters Addon · support for invokable objects (a.k.a.
complaint PHP errors

PHP errors: users show bugs, compatibility pain that may indicate a product gap.

Debug Bar Post Meta · PHP errors Hello, I’m unable to view the post meta due to some PHP 7+ issues encountered.
complaint Fatal error with WordPress 6.5+

Fatal error with WordPress 6.5+: users show bugs, compatibility pain that may indicate a product gap.

Debug Bar Localization · Fatal error with WordPress 6.5+ Hi there!
complaint [Plugin: BlackBox Debug Bar] Broken WordPress Constants

[Plugin: BlackBox Debug Bar] Broken WordPress Constants: users show bugs, support pain that may indicate a product gap.

BlackBox Debug Bar · [Plugin: BlackBox Debug Bar] Broken WordPress Constants The plugin breaks when you have moved wp-content to another directory.
complaint Fatal Error

Fatal Error: users show bugs pain that may indicate a product gap.

Debug Bar Actions and Filters Addon · Fatal Error After activating the plugin, My site breaks with a fatal error Screenshot: https://tppr.me/Au1XR After activating the plugin, My site breaks with a fatal error Screenshot: https://tppr.me/Au1XR
complaint Totally Crashed Our Backend

Totally Crashed Our Backend: users show bugs pain that may indicate a product gap.

Query Monitor · Totally Crashed Our Backend This plugin totally crashed the Admin area of our website.
complaint Produces fatal error in 5.7.2

Produces fatal error in 5.7.2: users show bugs pain that may indicate a product gap.

Debug Bar Actions and Filters Addon · Produces fatal error in 5.7.2 Produces fatal error in 5.7.2 Produces fatal error in 5.7.2 error message: Uncaught Error: Cannot use object of type Automattic\Jetpack\Autoloader\jp35ca907b2e70db60b0c2c7d0ef0fe4bd\Shutdown_Handler as array anyone can solve the problem?
complaint on login page

on login page: users show bugs pain that may indicate a product gap.

BlackBox Debug Bar · on login page I just saw that the debug bar is not being displayed on the login page but the js files are being loaded: <script type='text/javascript' src='https://domain.tld/wp-content/plugins/blackbox-debug-bar/public/highlight.pack.js'></script> <script type='text/javascript' src='https://domain.tld/wp-content/plugins/blackbox-debug-bar/public/blackbox.js
mixed Produces fatal error in 5.7.2

Produces fatal error in 5.7.2: users show bugs, compatibility pain that may indicate a product gap.

Debug Bar Actions and Filters Addon · Produces fatal error in 5.7.2 Produces fatal error in 5.7.2: PHP Error: Cannot use object of type Automattic\Jetpack\Autoloader\jp75e44bb1769a41d7ab3f080ddf78bcc8\Shutdown_Handler as array in /htdocs/veikals/wp-content/plugins/debug-bar-actions-and-filters-addon/debug-bar-action-and-filters-addon.php on line 185 PHP Stack trace: PHP 1.
praise The plugin to have.

The plugin to have.: users show bugs, compatibility, support pain that may indicate a product gap.

BugFu Console Debugger · Debug on some productions sites, when duplicating and installing in local environment is not possible, or the configuration is not the same, can be difficult, and using var_dump on a production site is not indicated.
mixed memory issues

Query Monitor's collection of many PHP deprecation traces appeared to exhaust memory and trigger 502 errors, leading to discussion of disabling or limiting error handling.

Query Monitor · QM is using up too much memory in storing the debugging info and exhausts the available memory
praise Upgrading to version 3.16.1 results in a fatal error on the website.

Upgrading to version 3.16.1 results in a fatal error on the website.: users show bugs pain that may indicate a product gap.

Query Monitor · Upgrading to version 3.16.1 results in a fatal error on the website.
complaint [Plugin: BlackBox Debug Bar] php notice, small hint

[Plugin: BlackBox Debug Bar] php notice, small hint: users show bugs, compatibility, performance pain that may indicate a product gap.

BlackBox Debug Bar · [Plugin: BlackBox Debug Bar] php notice, small hint At first, great idea and plugin.
complaint Session Support

Session Support: users show bugs, compatibility, support pain that may indicate a product gap.

BlackBox Debug Bar · Session Support Hello, I just downloaded and activated your plugin but while it shows all of my SQL queries perfectly, it doesnt’t show any of the session variables I am manipulating.
mixed Useful if you know the cache object location

Useful if you know the cache object location: users show bugs, support, setup pain that may indicate a product gap.

Debug Bar Cache Lookup · Useful if you know the cache object location For this plugin to work, you must have a memcache(d) object cache file that has a stats() method.
complaint GitHub?

GitHub?: users show bugs, missing feature, support pain that may indicate a product gap.

BlackBox Debug Bar · That way (minor) contributions by users can be implemented far easier and faster.
complaint [Plugin: Debug Bar Query Tracer] PHP warnings with WP_DEBUG enabled

[Plugin: Debug Bar Query Tracer] PHP warnings with WP_DEBUG enabled: users show bugs, compatibility, missing feature pain that may indicate a product gap.

Debug Bar Query Tracer · [Plugin: Debug Bar Query Tracer] PHP warnings with WP_DEBUG enabled The following is a small sample of the PHP warnings/notices appear in the debug bar panel, making the plugin unusable with WP_DEBUG enabled.
complaint [Plugin: Debug Bar Query Tracer] Bug in Panel.php line 44

[Plugin: Debug Bar Query Tracer] Bug in Panel.php line 44: users show bugs, compatibility, missing feature pain that may indicate a product gap.

Debug Bar Query Tracer · [Plugin: Debug Bar Query Tracer] Bug in Panel.php line 44 Hi, Panel.php line 44 should be: $this->_renderData(<strong>$data</strong><em>); It’s currently missing the parameter.
mixed sends a 500 error

sends a 500 error: users show bugs, compatibility, performance pain that may indicate a product gap.

Query Monitor · sends a 500 error I´ve installed your plugin three times, added define( ‘QM_DISABLE_ERROR_HANDLER’, true ); in my wp-config.php and always has sent this 500 error in my dashboard.
mixed Is this plugin still under dropped or just not active development

Is this plugin still under dropped or just not active development: users show bugs, compatibility, performance pain that may indicate a product gap.

Black Bar · It may no longer be maintained or supported and may have compatibility issues when used with more recent versions of WordPress.
mixed Can't see the Cache Lookup option in Debug Bar

Can't see the Cache Lookup option in Debug Bar: users show bugs, compatibility, missing feature pain that may indicate a product gap.

Debug Bar Cache Lookup · Can't see the Cache Lookup option in Debug Bar Ok, I have everything installed (including memcached) and I still can’t get the Cache Lookup tab to show in the Debug Bar screen.
mixed [Plugin: BlackBox Debug Bar] WP admin bar conflict

[Plugin: BlackBox Debug Bar] WP admin bar conflict: users show bugs, compatibility, performance pain that may indicate a product gap.

BlackBox Debug Bar · [Plugin: BlackBox Debug Bar] WP admin bar conflict I’d like to use this plugin over other debug bar plugins (cause it’s awesome!) but it’s conflicting with my existing admin bar (which I actually use and like).
mixed A conflicting db.php file is present – File is Query Monitor file

A conflicting db.php file is present – File is Query Monitor file: users show compatibility, missing feature, support pain that may indicate a product gap.

Query Monitor · A conflicting db.php file is present – File is Query Monitor file I’m getting the “Extended query information such as the component and affected rows is not available.
mixed Long sql code rows break the visual table

Long sql code rows break the visual table: users show bugs, performance, missing feature pain that may indicate a product gap.

Black Bar · Long sql code rows break the visual table SQL code row styling issue.
mixed HTML error: 'Saw U 0000 in stream.'

HTML error: 'Saw U 0000 in stream.': users show bugs, compatibility, support pain that may indicate a product gap.

Debug Bar Actions and Filters Addon · HTML error: 'Saw U 0000 in stream.' Hiya Subharanjan, Absolutely love the plugin!