Plugin Compatibility Checker

78 Quality Score

Active Installs

18/30

With 9,000 active installs, it sits in the mid-tier adoption range, well below the 20,000+ leaders but enough to show it fills a real niche.

Update Freshness

25/25

Updated April 2026 with explicit testing against WordPress 7.0, so maintenance is current and the compatibility claim is not stale.

User Rating

12/15

A 78 out of 100 from 9 ratings is a positive signal, though the sample is small enough that the score could swing quickly with one or two more reviews.

Support Health

8/15

Zero support threads means either the plugin is so simple it rarely breaks or the developer has not built out a support channel, and there is no resolved-thread history to fall back on.

WP Compatibility

15/15

Requires WordPress 5.0+ and PHP 7.2+, and is tested against 7.0, so compatibility coverage is broad and clearly stated.

Scores higher than 61% of indexed plugins

About

Scan and check your WordPress site for PHP, Database (MySQL/MariaDB), and Plugin compatibility to ensure safe upgrades to WordPress 7.0 and beyond.

Active Installs 9k+

Rating ★★★★ 4.1/5

Last Updated 2026-08-20 6:58am GMT

Requires WordPress 5.0+

Tested Up To 7.1

Requires PHP 7.2+

✓ No known vulnerabilities

What It Does

Plugin Compatibility Checker scans your WordPress installation for PHP version mismatches, MySQL/MariaDB configuration issues, and plugin-level compatibility problems before you upgrade to WordPress 7.0. It produces a diagnostic report you can act on, which is especially useful when managing older sites that have not been touched in years. It does not perform the upgrade itself, only the pre-flight check.

Who It's For

This plugin is a good fit for agencies and developers who manage multiple client sites and need a consistent way to audit stack compatibility before pushing a major WordPress release. It is also useful for small business owners running legacy WordPress installs who want a one-click way to know whether their hosting and plugins will survive an upgrade to 7.0.

Who Should Skip It

If you are already running WordPress 6.x on PHP 8.1+ and keep plugins current, this diagnostic adds little value. Site owners on fully managed hosts that handle upgrades for them will not get enough benefit to justify another plugin.

The Bottom Line

For its narrow job of pre-upgrade compatibility auditing, Plugin Compatibility Checker is well maintained, clearly positioned for the WordPress 7.0 transition, and scored 76.91 out of 100 on PluginCheck. The main caveat is the absence of any support thread history, so do not expect fast help if you hit an edge case. It is worth installing on legacy sites before a major upgrade, but most modern setups already on recent PHP will find it redundant.

Related Plugins

Server IP & Memory Usage Display 82/100

Pick this instead if your real concern is live server resource monitoring (memory, IP, load) rather than pre-upgrade compatibility scanning.

Database Manager – WP Adminer 82/100

Pick this if you need hands-on database inspection and editing through a phpMyAdmin-style interface rather than a read-only compatibility scan.

Version Info – Server Health Monitor, PHP & MySQL Version Display, Environment Indicators 80/100

Pick this if you only want a quick dashboard widget showing PHP, MySQL, and server versions, and do not need plugin-level compatibility analysis.

Better Plugin Compatibility Control 77/100

Pick this instead if you specifically want to suppress plugin errors and control compatibility flags on individual plugins rather than run a single audit report.

PHP Version 67/100

Pick this if your only question is which PHP version the site is running and you want a minimal, single-purpose display widget.