Contact Form 7 Spam Killer vs ZigZag Image Captcha for Contact Form 7 (2026)
Detailed side-by-side comparison of two WordPress plugins, based on real-time data from WordPress.org.
Contact Form 7 Spam Killer
4.0K+ active installs
Free
ZigZag Image Captcha for Contact Form 7
20 active installs
Free
Quick Verdict
As of April 2026, Contact Form 7 Spam Killer has a higher user rating (5/5 from 4 reviews) and leads in active installations (4.0K+ vs 20). Both are free WordPress plugins. Contact Form 7 Spam Killer has accumulated 29K+ total downloads while ZigZag Image Captcha for Contact Form 7 has 242.
Detailed Comparison
| Metric | Contact Form 7 Spam Killer | ZigZag Image Captcha for Contact Form 7 | |
|---|---|---|---|
| Rating | 5/5 | 5/5 | |
| Total Reviews | 4 | ◄ | 1 |
| Active Installs | 4.0K+ | ◄ | 20 |
| Total Downloads | 29K+ | ◄ | 242 |
| Support Resolution | N/A | N/A | |
| Last Updated | 9 months ago | ► | 3 months ago |
| First Released | 2015 | 2025 | |
| Age | 11 years | 1 year | |
| WP Requires | 5.6+ | 5.0+ | |
| PHP Requires | false+ | 7.4+ | |
| Business Model | Free | Free | |
| Latest Version | 1.8 | 1.1 |
Rating Breakdown
Contact Form 7 Spam Killer
ZigZag Image Captcha for Contact Form 7
Download Trends
Recent Reviews
Contact Form 7 Spam Killer Reviews
Easy install and integration
so far so good. Thank you or the instruction and easy installation. It is working on my website and … I hope it does the job with killing some of the unwanted messages. Thank you!
Top! Plugin
I like it
Very good plugin and amazing support
The plugin is very good, works perfectly. I needed to adjust it to RTL and contacted the developer. I received prompt reply and all the support that I needed. Not obvious to receive such support for a
ZigZag Image Captcha for Contact Form 7 Reviews
No reviews yet
More Plugins Worth Comparing
Top alternatives in the same category as Contact Form 7 Spam Killer and ZigZag Image Captcha for Contact Form 7
Save and manage Contact Form 7 messages. Never lose important data. It is a lightweight contact form 7 database plugin.
Adds reCaptcha v2 from Contact Form 7 5.0.5 that was dropped on Contact Form 7 5.1
Protect your Contact Form 7 forms with Google reCAPTCHA V2, Google reCAPTCHA V3, hCAPTCHA, or Cloudflare Turnstile.
Extends Contact Form 7 by adding dynamic form fields that accepts shortcodes to prepopulate form fields with default values and dynamic placeholders.
Adds an Image CAPTCHA to Contact Form 7 and WPForms, GDPR ready, perfect WPForms or Contact Form 7 Spam Protection Image CAPTCHA, adds a honeypot
Frequently Asked Questions
Is Contact Form 7 Spam Killer or ZigZag Image Captcha for Contact Form 7 more popular?
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Plugin data sourced from WordPress.org. Comparison and analysis by PluginSift.