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Best Free WordPress Plugins for Check

15 plugins compared · Updated August 2026 · Check

All 15 Free only Premium only

Choosing a WordPress plugin for check comes down to a few things: whether it is still actively maintained, whether real users rate it well, and whether it does the specific job you need without dragging the rest of the site down.

We ranked 15 plugins using our WPScore, which weighs the user rating (adjusted for how many people actually rated it), how many sites run it, how recently it was updated, and which WordPress version it is tested against. 15 of them have enough public data to be scored; the rest are listed below the ranked block, clearly marked, rather than being given a number we cannot justify.

How this list is funded. Some links here earn us a commission if you buy. It costs you nothing extra, and it does not move anything up the list — the order comes from the WPScore, which is calculated from public ratings, install counts and update history. See the method.

At a glance

  1. 1. Check & Log Email Best overall 89/100
  2. 2. Login as User 86/100
  3. 3. Plugin Check 83/100
  4. 4. Kama SpamBlock 83/100
  5. 5. Plugin Compatibility Checker 82/100
  6. 6. Password Policy Manager 82/100
  7. 7. WP-Cron Status Checker 81/100
  8. 8. WP24 Domain Check 81/100
  9. 9. WP ADA Compliance Check Basic 81/100
  10. 10. WProofreader spell & grammar check plugin for WordPress 80/100
  11. 11. Plugins Condition & Site Check 80/100
  12. 12. Child Theme Check 80/100
  13. 13. Anti Spam and list cleaner 79/100
  14. 14. Check Pincode For WooCommerce 78/100
  15. 15. WebChange Detector: Visual Regression Testing & Visual Check... 78/100
1 Check & Log Email
Best overall Free by checkemail

Check & Log Email

Check & Log email allows you to test if your website is correctly sending emails . Overriding of email headers and carbon copying to another address.

4.8★
from 290 ratings
100k+
active installs
Updated
Jul 2026
Tested to
WP 7.0.4
89

WPScore

Read review View on WordPress.org
2 Login as User
Free by Yiannis Christodoulou

Login as User

Login as User is a free WordPress plugin that helps admins switch user accounts instantly to check data.

4.8★
from 41 ratings
30k+
active installs
Updated
Aug 2026
Tested to
WP 7.1
86

WPScore

Read review View on WordPress.org
3 Plugin Check
Free by WordPress.org

Plugin Check

Plugin Check is a WordPress.org tool which provides checks to help plugins meet the directory requirements and follow various best practices.

4.5★
from 36 ratings
10k+
active installs
Updated
Aug 2026
Tested to
WP 7.0.4
83

WPScore

Read review View on WordPress.org
4 Kama SpamBlock
Free by Timur Kamaev

Kama SpamBlock

Light and invisible protection against basic automated comment spam. Pings and trackbacks check for real backlinks.

5★
from 17 ratings
4k+
active installs
Updated
Jul 2026
Tested to
WP 7.0.4
83

WPScore

Read review View on WordPress.org
5 Plugin Compatibility Checker
Free by CompatShield

Plugin Compatibility Checker

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

4★
from 10 ratings
9k+
active installs
Updated
Aug 2026
Tested to
WP 7.1
82

WPScore

Read review View on WordPress.org
6 Password Policy Manager
Free by miniOrange

Password Policy Manager

Enforce strong passwords with expiry, reset, score checks, inactive user lock, and user password management using Password Policy Manager.

4.4★
from 14 ratings
6k+
active installs
Updated
Aug 2026
Tested to
WP 7.1
82

WPScore

Read review View on WordPress.org
12 Child Theme Check
Free by Torsten Landsiedel

Child Theme Check

Warns you about outdated template files in your child theme and shows a diff view of the changes between parent and child theme template.

5★
from 8 ratings
800+
active installs
Updated
May 2026
Tested to
WP 7.0.4
80

WPScore

Read review View on WordPress.org
14 Check Pincode For WooCommerce
Free by silverplugins217

Check Pincode For WooCommerce

Let WooCommerce customers instantly check delivery availability, estimated delivery date, shipping charges, and Cash on Delivery status by entering th …

4.4★
from 5 ratings
400+
active installs
Updated
Jun 2026
Tested to
WP 7.0.4
78

WPScore

Read review View on WordPress.org