Yes, Debug Bar is free to use. It is available as a free plugin on WordPress.org.

How many websites use Debug Bar?

Debug Bar has 10 active installations as tracked by WordPress.org.

What are the best Debug Bar alternatives?

Popular alternatives to Debug Bar include WP Crontrol, Query Monitor – The developer tools…, Debug Bar. You can compare them side-by-side on our comparison pages.

Does Debug Bar work with the latest WordPress?

Debug Bar has been tested up to WordPress 3.9.40. It requires WordPress 3.5+ and PHP false+.

PluginSift

Debug Bar – Sidebars & Widgets

Name: Debug Bar – Sidebars & Widgets
Author: Jesper van Engelen

Debug Bar extension that adds information about the sidebars and widgets on the current page. Integrates with Content Aware Sidebars plugin.

By Jesper van Engelen·Debug·Free

·10 active installs·Updated 11 years ago

Download Compare

As of April 2026, Debug Bar is a WordPress debug plugin with 10 active installations and a 0/5 rating0. It has been downloaded 3.9K+ times in total. Requires WordPress 3.5+ and PHP false+. Available on WordPress.org since 2014. Last updated 11 years ago — may have compatibility concerns. Top alternative: WP Crontrol.

0/5Rating

10active installs

3.9K+total downloads

12 yearssince 2014

Overview

The Sidebars & Widgets extension for the Debug Bar shows you all you need to know about the sidebars and widgets on the current page. It shows the sidebars displayed and the widgets displayed in them, and tells you whether all widgets in the sidebar were actually displayed.

This plugin allows you to analyze the behaviour of your WordPress sidebars and wigets, and is aimed at WordPress developers.

This plugin is an extension to the Debug Bar plugin, which is required for this plugin to work.

This plugin integrates nicely with Content Aware Sidebars, telling you what sidebars were replaced and merged. It is an essential plugin if you use Content Aware Sidebars with a big number of sidebars.

Read full description on WordPress.org