Ivan

<p>The Google Authenticator plugin for WordPress gives you two-factor authentication using the Google Authenticator app for Android/iPhone/Blackberry.</p>
<p>If you are security aware, you may already have the Google Authenticator app installed on your smartphone, using it for two-factor authentication on Gmail/Dropbox/Lastpass/Amazon etc.</p>
<p>The two-factor authentication requirement can be enabled on a per-user basis. You could enable it for your administrator account, but log in as usual with less privileged accounts.</p>
<p>If You need to maintain your blog using an Android/iPhone app, or any other software using the XMLRPC interface, you can enable the App password feature in this plugin,<br />
but please note that enabling the App password feature will make your blog less secure.</p>
<h3>Credits</h3>
<p>Thanks to:</p>
<p><a href="https://profiles.wordpress.org/evinak/" rel="nofollow ugc">Oleksiy</a> for a bugfix in multisite.</p>
<p><a href="https://github.com/pancek" rel="nofollow ugc">Paweł Nowacki</a> for the Polish translation</p>
<p><a href="https://github.com/FabioZumbi12" rel="nofollow ugc">Fabio Zumbi</a> for the Portuguese translation</p>
<p><a href="https://www.guidoschalkx.com/" rel="nofollow ugc">Guido Schalkx</a> for the Dutch translation.</p>
<p><a href="https://www.paypal.com/cgi-bin/webscr?cmd=_donations&business=henrik%40schack%2edk&lc=US&item_name=Google%20Authenticator&item_number=Google%20Authenticator&no_shipping=0&no_note=1&tax=0&bn=PP%2dDonationsBF&charset=UTF%2d8" rel="nofollow ugc">Henrik.Schack</a> for writing/maintaining versions 0.20 through 0.48</p>
<p><a href="http://tobias.baethge.com/" rel="nofollow ugc">Tobias Bäthge</a> for his code rewrite and German translation.</p>
<p><a href="http://blog.pcode.nl/" rel="nofollow ugc">Pascal de Bruijn</a> for his “relaxed mode” idea.</p>
<p><a href="http://technobabbl.es/" rel="nofollow ugc">Daniel Werl</a> for his usability tips.</p>
<p><a href="http://dd32.id.au/" rel="nofollow ugc">Dion Hulse</a> for his bugfixes.</p>
<p><a href="https://profiles.wordpress.org/users/aldolat/" rel="nofollow ugc">Aldo Latino</a> for his Italian translation.</p>
<p><a href="http://www.kaijia.me/" rel="nofollow ugc">Kaijia Feng</a> for his Simplified Chinese translation.</p>
<p><a href="http://www.buayacorp.com/" rel="nofollow ugc">Alex Concha</a> for his security tips.</p>
<p><a href="http://jetienne.com/" rel="nofollow ugc">Jerome Etienne</a> for his jquery-qrcode plugin.</p>
<p><a href="http://orizhial.com/" rel="nofollow ugc">Sébastien Prunier</a> for his Spanish and French translation.</p>


Google Authenticator

Personally I feel 2FA should be a part of WordPress core. But since it isn't, plugins like this one are a must-have to secure your sites.

The configuration interface is clearly layed out and the login page fits in perfectly with the default WP login page styling.

This plugin is light-weight, unobtrusive, free and adds that extra layer of security. Should your admin credentials ever be compromised, 2FA will keep your site secure.

Must-have security plugin

Awesome plugin, which is almost always in first group of plugin I've install on new website. Thank you for create and maintain it.

One on few my first-to-install plugin

Google Authenticator for your WordPress blog.

Chandan Shrivastava

<p><strong>Email OTP Authenticator</strong> is a lightweight authentication plugin for WordPress that combines passwordless login, quick registration, optional 2FA and session protection into one flexible solution.</p>
<p>Built using independent security layers instead of a monolithic system, the plugin loads only the required components during use to keep runtime execution compact and avoid external service dependency.</p>
<h3>Delivering these key benefits:</h3>
<ul>
<li>Reduce login friction</li>
<li>Increase signup conversions</li>
<li>Reduce password reset requests</li>
<li>Strengthen multi-layered website security</li>
<li>Enhance user trust with secure authentication</li>
</ul>
<p>Designed to make WordPress authentication faster, smarter and more secure.</p>
<h3>Authentication Layers</h3>
<p>The plugin is engineered around three dedicated security Layers:</p>
<p><strong>Access Layer</strong></p>
<p>Handles secure user entry through passwordless authentication.</p>
<p>Features:<br />
* OTP Login<br />
* OTP Registration<br />
* Guest Verification<br />
* Email authorization<br />
* Fast Authentication Flow</p>
<p><strong>Validation Layer</strong></p>
<p>Adds identity confirmation and verification controls.</p>
<p>Features:<br />
* New Device detection<br />
* Auto-popup with UI lock<br />
* Parallel login validation<br />
* Two-Factor Authentication<br />
* Login Validity Enforcement</p>
<p><strong>Security Layer</strong></p>
<p>Protects active sessions and detects abnormal activity.</p>
<p>Features:<br />
* Dynamic Session Shield<br />
* Session Validity Check<br />
* Session Inactivity Lock<br />
* Adaptive 2FA Enforcement<br />
* Suspicious Activity Guard</p>
<h3>Lightweight By Design</h3>
<p>Built to stay lightweight.</p>
<p>Although the complete package includes templates, images and supporting resources for setup and compatibility, the actual authentication runtime remains compact.</p>
<ul>
<li>Admin Browser Load: ~97 KB</li>
<li>Admin PHP Runtime: ~564 KB</li>
<li><strong>Frontend Browser Load: ~68 KB</strong></li>
<li><strong>Frontend PHP Runtime: ~274 KB</strong></li>
<li>Templates & visual assets: ~2.1 MB</li>
<li>Distribution package (zipped): ~2.3 MB</li>
<li>Distribution package (unzipped): ~3.6 MB</li>
</ul>
<p>Only required components are loaded during use.<br />
No external APIs, frameworks or unnecessary scripts.</p>
<p><strong>Plugin runtime execution is highly optimized and fast.</strong><br />
<strong>However, overall performance also depends on external factors.</strong></p>
<h3>Key Highlights</h3>
<ul>
<li><strong>Quick Login & Signup</strong> – Instant, easy, and password-free; Login & signup with OTP.</li>
<li><strong>Built-in Two-Factor Authentication</strong> – Additional identity protection layer.</li>
<li><strong>Verified Access Control</strong> – Verify visitors without account for access to restricted pages.</li>
<li><strong>Adaptive Session Shield</strong> – Intelligent session protection engine.</li>
<li><strong>Zero External Dependency</strong> – Works without third-party services.</li>
<li><strong>Modern Vanilla JavaScript</strong> – No jQuery dependency.</li>
<li><strong>Flexible Integration Options</strong> – Add authentication anywhere.</li>
<li><strong>Complete Admin Control</strong> – Fine-tune authentication behavior.</li>
<li><strong>Built-in Interface System</strong> – Attractive ready-to-use templates.</li>
<li><strong>Lightweight & Fast</strong> – Optimized for performance.</li>
</ul>
<h3>Flexible Integration Options</h3>
<p>Add authentication forms anywhere on your website using simple integration methods.</p>
<p>Integration methods include:</p>
<ul>
<li>Shortcode integration (auto-popup, popup or inline forms)</li>
<li>Menu trigger integration (popup forms)</li>
<li>Redirect support for auto-popup & inline form pages</li>
<li>Multiple forms on the same page</li>
<li>Easy setup without coding complexity</li>
</ul>
<h3>Built-in Templates</h3>
<p>Attractive 27 ready-to-use templates with auto-popup, popup and inline support.</p>
<p>Easy-to-apply modern designs that match your website style, with options to customize pre-built templates or create your own.</p>
<h3>Complete Admin Control</h3>
<p>Customize authentication behavior, layout options, security restrictions and verification rules with ease. Admins gain complete control over user access and interaction across the website.</p>
<h3>Zero External Dependency</h3>
<p>Run a complete authentication system without relying on any third-party services.</p>
<ul>
<li>Full data control</li>
<li>Standalone operation</li>
<li>No external APIs required</li>
<li>Self-hosted OTP processing</li>
<li>Reliable authentication flow</li>
</ul>
<h3>Modern Architecture</h3>
<p>Built using modern development practices:</p>
<ul>
<li>Vanilla JavaScript implementation (no jQuery)</li>
<li>Modular resource loading</li>
<li>Secure token validation</li>
<li>Compact runtime execution</li>
<li>Optimized performance structure</li>
</ul>
<h3>Ideal Use Cases</h3>
<p>This plugin is ideal for:</p>
<ul>
<li>Membership websites</li>
<li>WooCommerce stores</li>
<li>SaaS dashboards</li>
<li>Community platforms</li>
<li>Agencies managing client websites</li>
<li>Developers needing flexible authentication</li>
<li>Beginners and small websites needing simple security</li>
</ul>
<p>Designed to scale from beginner websites to enterprise environments.</p>
<h3>Compatibility</h3>
<p>Works smoothly with popular WordPress tools:</p>
<ul>
<li>WooCommerce</li>
<li>Ultimate Member</li>
<li>MemberPress</li>
<li>BuddyPress</li>
<li>ProfileGrid</li>
<li>ProfilePress</li>
<li>User Registration</li>
<li>WP User Manager</li>
<li>Paid Memberships Pro</li>
<li>RegistrationMagic</li>
<li>Forminator</li>
<li>Login/Signup Popup plugins</li>
<li>And many more</li>
</ul>
<h3>Why Choose This Plugin</h3>
<ul>
<li>FAST – Quick OTP authentication process</li>
<li>FRIENDLY – Simple user experience</li>
<li>SMART – Intelligent access handling</li>
<li>SMOOTH – Clean UI integration</li>
<li>SECURED – Strong authentication protection</li>
</ul>
<h3>Basic Mode and Advanced Features</h3>
<p>Explore the default <strong>basic mode</strong> screenshots below, designed to be simple and beginner-friendly for non-technical admins. For screenshots of advanced integrations, customization, and extended functionality, visit the <a href="https://eotpa.cs7.in/docs/showcase.htm" rel="nofollow ugc">Plugin Showcase</a>.</p>
<h3>Support</h3>
<p>Feedback helps improve this plugin.<br />
Send suggestions or issues to:<br />
<a href="mailto:Mr.Chandan.Shrivastava@gmail.com" rel="nofollow ugc">Mr.Chandan.Shrivastava@gmail.com</a></p>
<h3>Notes</h3>
<p>This is the Lite version with advanced features included for exploration.<br />
Visit the <a href="https://eotpa.cs7.in/" rel="nofollow ugc">plugin homepage</a> to discover everything available across editions.</p>


Email OTP Authenticator – Login, Register, 2FA & Session Lock

A lightweight OTP-powered plugin for Login, Registration, 2FA Protection and Dynamic Session Security. It is FAST, FRIENDLY, SMART, SMOOTH & SECURE.

Google Authenticator vs Email OTP Authenticator – Login, Register, 2FA & Session Lock