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ZigZag Image Captcha for Contact Form 7

Adds a secure, flexible image captcha field to Contact Form 7 with zig-zag protection, timer, refresh, AJAX validation, and accessibility support.
Ratings
5
Version
1.1
Active installations
20
Last updated
Dec 31, 2025
ZigZag Image Captcha for Contact Form 7

ZigZag Image Captcha for Contact Form 7 adds a powerful, image-based captcha field designed to protect your forms from spam and bots.

The plugin generates a zig-zag distorted captcha image with background noise, dots, lines, and randomized angles — making it extremely difficult for automated bots to solve.

It integrates seamlessly with Contact Form 7, works fully with AJAX submissions, and displays native CF7 validation errors.

🔒 Features

  • Secure zig-zag distorted image captcha
  • Random characters with noise, distortion, and angled letters
  • One-click image refresh
  • Session-based secure validation
  • Expiration timer with auto-regeneration
  • Native Contact Form 7 error messages
  • Works with AJAX and non-AJAX forms
  • Lightweight and optimized
  • No external API required
  • Fully responsive and accessible

⚙️ Notes

  • Requires Contact Form 7 to be installed and active
  • No third-party services or tracking
  • Fully self-hosted captcha generation

How to Use

  1. Open Contact Form 7 Edit Form
  2. Insert the captcha field where you want it to appear: [imagecaptcha* cf7_image_captcha]
  3. Save the form
  4. Done! 🎉 The captcha will automatically validate submissions

The * makes the captcha field required.

Freeon paid plans
Tested up to
WordPress 6.9.4
This plugin is available for download for your site.