Sabaoh

This plugin will add some reCAPTCHA widget to login form, comment form, and user registration form. With this plugin, sites owners can avoid spam comment, user registration, and biting password.
Mighty CAPTCHA uses a Google reCAPTCHA technology. To work, API key pair, issued Google, is necessary.
For more information about key pair, please refer https://www.google.com/recaptcha/intro/index.html .
You can choose which form will be with reCAPTCHA widget or not. For login form and user registration form, a normal size widget is too wide. So you can choose compact widget. (but I do not like it.)
Below is characteristic of new Google reCAPTCHA.
<ul>
<li>Easy for ordinary users. They only must check the “I’m not a robot”.</li>
<li>When Google reCAPTCHA recognized an access was smell fishy, image authentication screen would appear.</li>
<li>New image authentication screen is without deformed letters, with photo images instead of them.</li>
<li>Photo images authentication is for example “choose all photos of a cat”. Easy to human and hard to robot.</li>
<li>It’s easy to use with smart phone or tablet.</li>
</ul>
Why don’t you usher it into your site!

Mighty CAPTCHA

Mighty-CAPTCHA add an authentication with Google reCAPTCHA technology to login, comment, and register form, with API keys which delivered by Google.

imminentsoftwares

Secure LoginRegistration Form – Inline & Modal Popup is a modern, lightweight, and security-focused authentication plugin that enables AJAX-based login, registration, and password reset from the frontend. It supports inline forms via shortcode as well as modal popup triggers.
Users can register with custom fields, protected by Google reCAPTCHA v3 to prevent spam. The plugin includes complete email notification support, redirection controls, and responsive UI design.
Features include: 
– AJAX login, registration, and lost password 
– Inline form shortcode & modal popup trigger 
– Custom registration fields (text, number, email, select) 
– Google reCAPTCHA v3 integration 
– Customizable email notifications 
– Redirect control after login, logout, and sign-up 
– Fully responsive modern UI 
– Compatible with any theme 
– Lightweight and fast
<h3>External Services</h3>
This plugin uses Google’s reCAPTCHA service to detect and prevent spam and automated abuse. 
User’s reCAPTCHA token is sent to Google’s server for verification.
Service Provider: Google 
Terms of Service: https://policies.google.com/terms 
Privacy Policy: https://policies.google.com/privacy

Secure LoginRegistration Form – Inline & Modal Popup

A secure and responsive plugin for AJAX login, registration, password reset with email notifications, custom fields, and Google reCAPTCHA.

Mighty CAPTCHA vs Secure LoginRegistration Form – Inline & Modal Popup