Alexandre Froger

Add Two-Factor Authentication, Passwordless Authentication and Account Validation to your WordPress website.
<h3>Overview</h3>
This plugin adds the following major features to WordPress:
<ul>
<li>3 One-Time Password modes: Two-Factor Authentication, Passwordless Authentication and Account Validation.</li>
<li>3 Authentication Gateways for OTP Verification Codes: WordPress Email, Twilio SMS, Alibaba Cloud SMS ; all with option to use a sandbox mode.</li>
<li>Two-Factor Authentication: allow (or force) users to authenticate with a second factor on top of their password.</li>
<li>Passwordless Authentication: allow users to login simply with their username, an identifier, and an OTP Verification Code (identifier depending on the Authentication Gateway – email or phone number supported with the default gateways).</li>
<li>Account Validation: force users to validate their account by entering an OTP Verification Code at first login, on a set regular basis at login, or at each login.</li>
<li>Synchronize OTP identifiers with existing data: wish to use Twilio SMS, but already have a phone number field saved in database? Perhaps with the “Billing Phone” in WooCommerce? Use this field by indicating its user meta key in the gateway settings (Note: duplicate identifiers will require users to choose a different one on update).</li>
<li>Simple yet customizable appearance: forms used to request OTP Verification Codes use a neutral dedicated style compatible with most themes, with customizable logo and call-to-action colors.</li>
<li>Activity Logs: when enabled, administrators can follow the activity of the enabled gateway. Critical messages regarding gateway malfunction are always logged.</li>
<li>Customizable for developers: developers can add their own gateways or add custom One-Time Password modes using action and filter hooks, and more – see the <a href="https://github.com/froger-me/otp-authenticator" rel="nofollow ugc">developers documentation</a>.</li>
<li>Integration-friendly: specific integration with Ultimate Member and WooCommerce is included by default ; developers can easily plug into OTP Authenticator with a multitude of functions, filter hooks and action hooks – see the <a href="https://github.com/froger-me/otp-authenticator" rel="nofollow ugc">developers documentation</a> – contributions to integrations are welcome.</li>
<li>Unlimited features: there are no premium version feature restrictions shenanigans – OTP Authenticator is fully-featured right out of the box.</li>
</ul>
<h3>Troubleshooting</h3>
OTP Authenticator is regularly updated, and bug reports are welcome, preferably on <a href="https://github.com/froger-me/otp-authenticator/issues" rel="nofollow ugc">Github</a>, especially for advanced troubleshooting.
Each bug report will be addressed in a timely manner, but general inquiries and issues reported on the WordPress forum may take significantly longer to receive a response.
Only issues occurring with included integrated plugins (or plugin features), core WordPress and default WordPress themes (incl. WooCommerce Storefront) will be considered without compensation.
Troubleshooting involving 3rd-party plugins or themes will require compensation in any case, and will not be addressed on the WordPress support forum.
<h3>Integrations</h3>
Although OTP Authenticator is designed to work out of the box with most combinations of WordPress plugins and themes, there are some edge cases necessitating integration, with code included in the core files of OTP Authenticator executing under certain conditions.
Integrations added to core are limited to popular plugins and themes: any extra code specific to a handful of installations require a separate custom integration plugin not shared with the community (decision at the discretion of the OTP Authenticator plugin author).
If such need for plugin integration arises, website administrators may contact the author of OTP Authenticator to become a patron.
All integrations are to be funded by plugin users, with downpayment and delivery payment, at the plugin author’s discretion, without exception. 
The patron in return may be credited with their name (or company name) and a link to a page of their choice in the plugin’s Changelog.

OTP Authenticator

One-Time Password Authentication for WordPress

Ramesh Kumar

No Need For Password – WordPress OTP Login Plugin
<a href="https://wordpress.org/plugins/no-need-for-password/" rel="ugc"> No Need For Password </a> is a WordPress authentication plugin that enables users to log in and register using a one-time password (OTP) sent to their email address. Traditional passwords are not required.
The plugin is developed by <a href="https://in.linkedin.com/in/developer-ramesh" rel="nofollow ugc"> Ramesh Kumar </a>, a web developer and technical lead with over a decade of experience building WordPress plugins, custom systems, and scalable web solutions. His background includes hands-on development and leading engineering teams on complex projects.
This plugin is designed for WordPress websites that prioritize usability, simplified authentication flows, and reduced dependency on password-based systems—often required in modern <a href="https://capsquery.com/" rel="nofollow ugc"> custom website development </a> projects.
Perfect for: 
– Blogs 
– Membership sites 
– WooCommerce stores 
– SaaS-style WordPress websites
No external services. No third-party APIs. Everything runs inside WordPress.
<h3>🔐 Key Features</h3>
Here are list of features that you enjoy by getting hands on password-free authentication plugin:
<ul>
<li>Passwordless login via email OTP</li>
<li>Automatic user registration for new emails</li>
<li>Secure OTP with expiry time</li>
<li>Login popup with clean UI</li>
<li>Logout link for logged-in users</li>
<li>Gutenberg & Full Site Editing (FSE) compatible</li>
<li>Works with block themes like Twenty Twenty-Three</li>
<li>ACF support for user registration fields</li>
<li>AJAX-based (no page reloads)</li>
<li>Lightweight & fast</li>
<li>Developer-friendly and extensible</li>
<li>Compatible with modern block themes</li>
</ul>
These OTP-based WordPress login plugin features are great choice for modern websites.
<h3>🚀 How It Works</h3>
Below are 5 easy step to working process of secure email OTP login for WordPress plugin
<ol>
<li>User clicks Login</li>
<li>Enters email address</li>
<li>Receives a 6-digit OTP by email</li>
<li>Enters OTP</li>
<li>Logged in instantly</li>
</ol>
No passwords. No reset links. No friction.
<h3>👨‍💻 Who Is It For?</h3>
Here are top cases where this No Need For Password by Ramesh is ideal choice:
<ul>
<li>Membership websites</li>
<li>WooCommerce stores</li>
<li>Blogs and communities</li>
<li>SaaS-style WordPress apps</li>
<li>Anyone who wants password-free authentication</li>
</ul>
<h3>🧱 Shortcodes</h3>
Use these shortcodes anywhere on your site:
Login button
[nnfp_login_button]
Login page container
[nnfp_login_form]
Registration popup button
[nnfp_register_popup_button]
Registration form
[nnfp_registration_form]
<h3>🎨 Theme Compatibility</h3>
This plugin works with: 
– Classic themes 
– Block themes (Full Site Editing) 
– Twenty Twenty-Three 
– Twenty Twenty-Four 
– Most modern WordPress themes
No theme files need to be edited.
<h3>🔌 ACF Integration (Optional)</h3>
If Advanced Custom Fields (ACF) is installed: 
– User registration fields are automatically detected 
– ACF values are saved to the user profile after OTP verification
ACF is optional — the plugin works perfectly without it.
<h3>🔒 Security</h3>
<ul>
<li>OTP is time-limited</li>
<li>Nonce protection on all AJAX requests</li>
<li>Sanitized and validated user input</li>
<li>Uses WordPress authentication APIs</li>
<li>No passwords stored or transmitted</li>
</ul>
<h3>👨‍💻 Developer Friendly</h3>
Hooks and filters can be added easily. 
Clean class-based architecture. 
No hard dependencies.
<h3>Support</h3>
For support, feature requests, or bug reports: 
https://github.com/developer-ramesh

NNFP – Passwordless Email OTP Login

Short Description: Enable secure passwordless login and registration using secure email-based one-time passwords (OTP).

OTP Authenticator vs NNFP – Passwordless Email OTP Login