Forces all users to login before being able to view your site. Features an options page for configuration.
Protection from login, registration and reset-password brute-force attacks. No captcha.
Integration with ITERAS, a cloud-based state-of-the-art system for managing subscriptions and payments for magazines.
Cognito Forms lets you quickly and easily build awesome forms, surveys and more without ever leaving WordPress.
WP-Chargify allows users to integrate the Chargify service with WordPress.
Block comment spam and fake registrations by adding the powerful CAPTCHA protection of Securimage-WP to your WordPress site.
This plugin integrates Really Simple Captcha to the Buddypress registration page.
SimpleTix event registration and ticketing plug-in.
Plugin allow you to create a page that will display registration form for your user registers.
Scientifically proven by research from the University of Wollongong as the most secure text-based 3D CAPTCHA available -- on the most simple settings.
Custom Registration form, Custom Login Pages, Custom Profile Page, Invitation codes, Paypal, Email verification, user moderation & more.
Add some useful fields to registration and user's info
Spam Master is the Ultimate Spam Protection plugin that blocks new user registrations and post comments with Real Time anti-spam lists.
Add a honeypot and Google reCAPTCHA V2 (noCAPTCHA CAPTCHA) to the log in form, registration form, and comment form
Simple Membership Addon to generate registration form shortcode for specific membership access level.
Adds some extra security to your WordPress with only one click.
Super-lightweight plugin adds Google's No Captcha reCAPTCHA box to your BuddyPress registration form. Tough on bots, Easy on humans!
This plugin is dead. It is replaced by a better one.
Aggressive anti-spam plugin that eliminates comment spam, trackback spam, contact form spam and registration spam. Protects against malicious attacks.
Allows users to sign up without needing to enter an email address
The most advanced protection against sploggers and spam users registration, is fully WordPress,WordPress MU ,BuddyPress and bbPress 2.0 compatible
This plugin makes adding users to your WordPress site easier than ever before.
MiwoEvents offers you an All-in-One platform to create free or paid Events with an easy to use interface.
Invites system for wordpress, wordpress MU and buddypress!
Create, display, and collect payment for your products online. A complete eCommerce solution integrated with Apptivo.
This plugin detects one-time email addresses (disposable email, trashmail, mailinator, 10minutemail) and helps to keep your userbase and comments clea
Automatically create and accept friendships for specified users upon new user registration. * Requires BuddyPress
Take total control of your WordPress sign-ups with this easy to use plugin. Custom fields,roles and much more!
Cartpauj Register Captcha does one simple task, and does it well. It prevents SPAM signups through WordPress's default registration form.
Restrict the usernames that new users may use when registering for your site.