Output Buffer Tester
This plugin helps to developers to find which plugin or theme closed their opened full page output buffers.
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·10 active installs·Updated 8 years agoAs of April 2026, Output Buffer Tester is a WordPress debug plugin with 10 active installations and a 0/5 rating0. It has been downloaded 1.7K+ times in total. Requires WordPress 4.0+ and PHP 5.2+. Available on WordPress.org since 2018. Last updated 8 years ago — may have compatibility concerns. Top alternative: WP Crontrol.
0/5Rating
10active installs
1.7K+total downloads
8 yearssince 2018
Overview
Output Buffer Tester is for debugging purpose only. Please deactivate and remove if you do not need it anymore!
Usage
Install and activate the plugin. Append ?ob-test=1 to any url on your page and see the result. If everything goes well, you are fine. If there is an error, you will see an error message and a call stack, so you will be able to find out who closed the output buffer.
Ratings & Reviews
00 reviews
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Compatibility
| WordPress | 4.0+ requiredTested up to 4.9.29 |
| PHP | 5.2+ required |
Top Alternatives to Output Buffer Tester
Frequently Asked Questions
Changelog
1.0.1 – 28. March 2018.
- Added function param to help the search.
- Display the template_redirect actions if the plugin was not able to add the output buffers.
Contributors
Plugin data sourced from WordPress.org. Analysis and metrics by PluginSift.