WPThumbs
Themes Plugins By purpose By industry Best-of lists Fix it guides
Free Plugin by Elliot Sowersby / RelyWP v1.42.1

Simple CAPTCHA with Cloudflare Turnstile

Add Cloudflare Turnstile to WordPress, WooCommerce, Contact Forms & more. The user-friendly, privacy-preserving reCAPTCHA alternative. 100% free!

Simple CAPTCHA with Cloudflare Turnstile

The facts

Rating
4.7★ from 253
Active installs
200k+
Price
Free
Last updated
27 Jul 2026
Added
Oct 2022
Requires WP
4.7
Tested up to
WP 7.0.4
Downloads
2,556,709

Our analysis

AI-assisted

Simple CAPTCHA with Cloudflare Turnstile is a WordPress plugin that adds Cloudflare's Turnstile to various forms on your website to protect against spam. It is designed to be user-friendly and privacy-preserving, serving as an alternative to traditional reCAPTCHA options. The plugin supports a wide range of forms including login, registration, comments, and WooCommerce checkout forms, as well as popular form plugins like WPForms and Contact Form 7.

This plugin is suitable for any WordPress site owner looking to enhance their site's security by preventing spam submissions. It is particularly useful for those who want a free and straightforward solution to implement on multiple forms across their site.

Best for: This plugin suits WordPress site owners who need to protect their forms from spam.

What it does well

  • Free to use from the WordPress.org directory
  • Supports a wide range of forms and plugins
  • User-friendly and privacy-preserving alternative to reCAPTCHA
  • Includes features like custom error messages and debug logging
  • Compatible with WordPress Multisite and most 2FA plugins

Where it falls short

  • Limited information on specific performance metrics
  • No mention of support for all form plugins

Verdict

Simple CAPTCHA with Cloudflare Turnstile offers a solid solution for spam protection on WordPress forms, with a variety of features for customisation and usability.

From the developer

Elliot Sowersby / RelyWP's own description of Simple CAPTCHA with Cloudflare Turnstile, lightly tidied.

Easily add Cloudflare Turnstile to all your WordPress website forms to protect them from spam!

A user-friendly, privacy-preserving reCAPTCHA alternative. 100% free!

Supported Forms

You can currently enable Turnstile on the following forms:

WordPress

  • Login Form
  • Registration Form
  • Password Reset Form
  • Comments Form

WooCommerce

  • Checkout
  • Pay For Order
  • Account Details Form
  • Login Form
  • Registration Form
  • Password Reset Form

Form Plugins

  • WPForms
  • Fluent Forms
  • Contact Form 7
  • Gravity Forms
  • Formidable Forms
  • Forminator Forms
  • Jetpack Forms
  • Kadence Forms
  • SureForms

Other Integrations

  • Elementor Pro Forms
  • Easy Digital Downloads Forms
  • Paid Memberships Pro Forms
  • Mailchimp for WordPress Forms
  • MailPoet Forms
  • BuddyPress Registration Form
  • bbPress Create Topic & Reply Forms
  • MemberPress Forms
  • Ultimate Member Forms
  • WP-Members Forms
  • WP User Frontend Forms
  • WP User Manager Forms
  • wpDiscuz Comments Form
  • CheckoutWC & Flux Checkout
  • Sunshine Photo Cart

This plugin is also compatible with WordPress Multisite, and most two-factor authentication (2FA) plugins.

Other Features

The plugin includes several other features and options:

  • Theme: Select the default theme for Turnstile.
  • Language: Set the default language for Turnstile.
  • Appearance Mode: Choose if Turnstile is always displayed, or only when an interaction is required.
  • Disable Submit Button: Disable the submit button on forms until the Turnstile challenge is completed.
  • Custom Error Message: Set your own custom error message for failed submissions.
  • Whitelist: Prevent Turnstile from showing for logged in users, or certain IP addresses (wildcards are not supported).
  • Resource Hint (Preconnect): Option to enable resource hint preconnect for improved performance.
  • Failsafe Mode: Option to enable failsafe mode. When Cloudflare is down, this mode will either allow submissions, or fallback to reCAPTCHA.
  • Debug Logging: Enable debug logging of Turnstile form submission events to help with troubleshooting.

Read the full description on the official page →

Tagged as

Alternatives

Other plugins for content delivery.

FluentSMTP

Free WP Mail SMTP plugin - fix WordPress email deliverability with Gmail, Amazon SES, SendGrid, Mailgun, Cloud...

Free 600k+ installs 4.8★ (400)
Smush

Smush

93

Compress and optimize images, enable lazy load, serve WebP & AVIF, and speed up your site with a global im...

Free 1M+ installs 4.8★ (6,051)
W3 Total Cache

Search Engine (SEO) & Performance Optimization (WPO) via caching. Integrated caching: CDN, Page, Minify, O...

Free 900k+ installs 4.4★ (5,420)
Super Page Cache

Boost PageSpeed, SEO, and Core Web Vitals with full page caching, JS/CSS optimization, media optimization, and...

Free 70k+ installs 4.8★ (506)
WP Fastest Cache

The simplest and fastest WP Cache system

Free 1M+ installs 4.9★ (4,224)
SpeedyCache

SpeedyCache is a WordPress cache plugin that helps you improve performance of your WordPress site by caching,...

Free 600k+ installs 4.4★ (30)