Best contact form 7 captcha plugins for WordPress
The most popular contact form 7 captcha plugins for WordPress in November 2026, in WordPress.org’s own popular order, which follows active installs. DS CF7 Math Captcha leads with 9K+ active installs, ahead of Contact Form 7 Spam Killer (3K+). All 2 plugins tagged “contact form 7 captcha” are below, with figures from WordPress.org that update every day.
Installs aren’t everything: a recent release, a “Tested up to” that matches the current WordPress, and support threads that get resolved show a plugin is looked after. Open any plugin for its downloads, rank history and alternatives.
Research this niche or see all plugins.
Top 2 contact form 7 captcha plugins
- 1.DS CF7 Math Captcha
The most installed contact form 7 captcha plugin, with 9K+ active installs. Rated 5.0 from 8 reviews, updated 4 months ago.
- 2.
Contact Form 7 Spam Killer3K+ active installs. Only 4 reviews so far, last updated 1 year ago. Tested only up to WordPress 6.8.12.
All 2 plugins tagged “contact form 7 captcha”
DS CF7 Math Captcha
Down in the last 7 days:30#2,159by Dotsquares4 months ago
"DS CF7 Math Captcha" is a math captcha with refresh captcha functionality to prevent unwanted spam for your contact form 7 plugin.
- Installs
- 9K+
- Rating
- 5.0(8)
- Downloads
- 46/day

Contact Form 7 Spam Killer
Up in the last 7 days:1#3,648by WP-EXPERTS.IN1 year ago
"Contact Form 7 Spam Killer" is a advance spam blocker that will help to prevent unwanted spam for your Contact Form 7 plugin.
- Installs
- 3K+
- Rating
- 5.0(4)
- Downloads
- 22/day