Akismet Anti-Spam

Akismet checks your comments and contact form submissions against our global database of spam to…


Automattic 5+ million active installations Tested with 5.3 Updated 3 weeks ago

Antispam Bee

Antispam plugin with a sophisticated tool set for effective day to day comment and trackback…


pluginkollektiv 500,000+ active installations Tested with 5.2.4 Updated 3 months ago

Email Address Encoder

A lightweight plugin that protects email addresses from email-harvesting robots, by encoding them into decimal…


Till Krüss 100,000+ active installations Tested with 5.3 Updated 3 weeks ago

Math Captcha

Math Captcha is a 100% effective CAPTCHA for WordPress that integrates into login, registration, comments,…


dFactory 40,000+ active installations Tested with 4.9.12 Updated 1 year ago

WordPress Zero Spam

Zero Spam makes blocking spam comments a cinch. Install, activate and enjoy a spam-free site.…


Ben Marshall 30,000+ active installations Tested with 5.2.4 Updated 6 months ago

CryptX

No more SPAM by spiders scanning you site for email adresses. With CryptX you can…


Ralf Weber 10,000+ active installations Tested with 5.2.4 Updated 4 weeks ago

Spam Free WordPress

Todd Lahman's comment spam blocking plugin that blocks automated spam with zero false positives.


Todd Lahman, LLC 10,000+ active installations Tested with 4.4.20 Updated 4 years ago

Kama SpamBlock

Light and invisible method to block auto-spam when spam comment is posted. Pings and trackbacks…


Kama 8,000+ active installations Tested with 4.7.15 Updated 11 months ago

Spam Destroyer

Kills spam dead in it's tracks. Be gone evil demon spam!


Ryan Hellyer 8,000+ active installations Tested with 5.2.4 Updated 8 months ago

WP-Hashcash

Client-side javascript blocks all spam bots. XHTML 1.1 compliant.


Elliott Back 7,000+ active installations Tested with 3.0.5 Updated 9 years ago

Gravity Forms Zero Spam

Enhance your Gravity Forms to include anti-spam measures originally based on the work of David…


GoWP 7,000+ active installations Tested with 4.9.12 Updated 1 year ago

FV Antispam

FV Antispam is a powerful and simple antispam plugin. It moves any spambot comments directly…


Foliovision 5,000+ active installations Tested with 4.9.12 Updated 2 years ago