popularsizzle

A two-step verification plugin using the Time-based One-time Password Algorithm (TOTP), which can be used with an app or service like Google Authenticator.
<ul>
<li>Lightweight and fast: no classes are instantiated until required</li>
<li>No reliance or affiliation with any third-party service</li>
<li>No setup or config required: immediately enabled for all uses upon plugin activation</li>
<li>Automatically throttles multiple failed login attempts</li>
<li>Uses filters to allow modifying functionality or output</li>
<li>Requires PHP 7 or later</li>
<li>Built for WordPress 4.8 or later</li>
</ul>

Simple 2FA

A lightweight, zero-config TOTP 2FA plugin with automatic rate limiting. PHP 7 and WP 4.8 or later.

kuckovic

Flavor 2FA adds powerful two-factor authentication to your WordPress site without the complexity. No bloat, no confusing settings – just solid security that protects your site from unauthorized access.
<h4>Why Flavor 2FA?</h4>
<ul>
<li>Zero configuration needed – Works out of the box</li>
<li>Native WordPress styling – Feels like part of WordPress</li>
<li>Two verification methods – Authenticator apps (Google Authenticator, Authy, 1Password) or email codes</li>
<li>User-friendly setup – Guided 3-step process with QR code scanning</li>
<li>Complete admin control – Force 2FA, reset users, manage lockouts</li>
</ul>
<h4>Features</h4>
For Users: 
* Choose between authenticator app or email verification 
* 10 recovery codes for emergency access 
* “Trust this device” option to skip 2FA on personal devices 
* Simple, clean verification screens
For Admins: 
* Require 2FA for specific user roles 
* Grace period for new users 
* Force immediate 2FA setup on next login 
* Lockout protection against brute force attacks 
* Reset 2FA or unlock accounts with one click 
* See 2FA status for all users at a glance
<h4>Perfect For</h4>
<ul>
<li>Agencies managing client sites</li>
<li>WooCommerce stores handling sensitive data</li>
<li>Membership sites with user accounts</li>
<li>Any WordPress site that needs extra security</li>
</ul>
<h3>External services</h3>
This plugin uses a third-party service to generate QR codes during the TOTP authenticator app setup process.
<h4>QR Server API</h4>
When a user chooses the “Authenticator App” method during 2FA setup, the plugin generates a QR code image via the QR Server API. This QR code contains the TOTP secret URI (which includes the site name, user email, and secret key) so the user can scan it with their authenticator app.
<ul>
<li>What data is sent: A TOTP provisioning URI containing the site name, user email address, and a generated secret key.</li>
<li>When it is sent: Only once, when a user sets up TOTP-based two-factor authentication. No data is sent during normal login verification.</li>
<li>Service provider: goQR.me / QR Server</li>
<li>Service URL: <a href="https://goqr.me/api/" rel="nofollow ugc">https://goqr.me/api/</a></li>
<li>Terms of service: <a href="https://goqr.me/api/doc/" rel="nofollow ugc">https://goqr.me/api/doc/</a></li>
<li>Privacy policy: <a href="https://goqr.me/privacy-policy/" rel="nofollow ugc">https://goqr.me/privacy-policy/</a></li>
</ul>

Flavor 2FA

Lightweight two-factor authentication that just works. Protect your WordPress site with authenticator apps or email codes in under 2 minutes.

Simple 2FA vs Flavor 2FA