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2026.06.29 IT/Web Technology

Block WordPress Spam with Free Image CAPTCHA Plugin

Table of Contents

1 About Image CAPTCHA for Contact Form 7 and WPForms
2 Key Features

About Image CAPTCHA for Contact Form 7 and WPForms

Image CAPTCHA for Contact Form 7 and WPForms is an anti-spam plugin designed specifically for WordPress form plugins (Contact Form 7 and WPForms), allowing you to add image CAPTCHA and honeypot functionality.

Although it uses a simple verification method—just selecting the specified icon from an image—it can effectively block spam submissions sent by bots.

Utilizes inline SVG technology, eliminating the need to download any external resources
Does not use cookies or other storage mechanisms on the user’s device
Unlike Google reCAPTCHA, it does not send additional header requests, so it won’t impact your website’s page loading speed

Key Features

< Image CAPTCHA for Contact Form 7 and WPForms Settings Page >

< Example: Image Verification Page ① >

< Example: Image Verification Page ② >

Free Version Features

Even the free version comes fully equipped with the core features needed for basic anti-spam protection.

Features	Details
Image Verification	Simply select the correct icon from the displayed options as prompted to complete verification
Honeypot	Uses hidden form fields to lure bots into a trap, thereby effectively preventing spam
WPML Compatible	Seamlessly integrates with multilingual websites and translation management plugins

Pro Version Features

While the free version provides ample security protection, the Pro version unlocks access to the following advanced features.

Features	Details
Extended Form Plugin Compatibility	In addition to supporting standard WordPress login, registration, and comment forms, it fully extends compatibility to WooCommerce and Gravity Forms (including login, registration, and checkout pages)
Enhanced Security and Custom Settings	By hashing the verification answers and automatically refreshing upon form submission, it significantly elevates your security against spam Additionally, you can fully customize the form’s appearance by adding custom icons, changing colors, and adjusting typography
Enhance resistance to random guessing and improve accessibility	Reduces the success rate of random guessing down to just 10%, while fully complying with ADA, WCAG, and a11y standards

Reference Website

Image CAPTCHA for Contact Form 7 and WPForms

https://wordpress.org/plugins/contact-form-7-image-captcha

Related Services

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