Email OTP Authenticator is a lightweight OTP-based authentication plugin for WordPress built for passwordless login and quick registration, with some optional features such as 2FA, Email Verification, and Session Verification.

Main Features:
* OTP Login
* OTP Registration
* Email Verification
* Session Verification
* Two-Step Verification

Zero Dependency:
* Lightweight architecture
* No external APIs required
* Self-hosted OTP validation
* Pure Vanilla JS Framework
* Self – contained operations

Lightweight By Design

Although the complete package includes templates, images and supporting resources for setup and compatibility, the actual authentication runtime remains compact.

Frontend Browser Load: ~68 KB
Templates & visual assets: ~2.1 MB
Distribution package (zipped): ~2.3 MB
Distribution package (unzipped): ~3.6 MB

Only required components are loaded during use.
No external APIs, frameworks or unnecessary scripts.

Plugin runtime execution is highly optimized and fast.
However, overall performance also depends on external factors.

Flexible Integration Options

Add authentication forms anywhere on your website using simple integration methods.

Use OTP Forms via Menu
Use OTP Forms via Shortcode
Works smoothly on pages and posts
Support multiple forms on the same page
Supports different actions for different forms

Built-in Templates

Attractive 27 ready-to-use templates with auto-popup, popup and inline support.

Easy-to-apply modern designs that match your website style, with options to customize pre-built templates or create your own.

Complete Admin Control

Customize authentication behavior, layout options, security restrictions and verification rules with ease. Admins gain complete control over user access and interaction across the website.

Compatibility

Works smoothly with popular WordPress tools:

WooCommerce
Ultimate Member
MemberPress
BuddyPress
ProfileGrid
ProfilePress
User Registration
WP User Manager
Paid Memberships Pro
RegistrationMagic
Forminator
Login/Signup Popup plugins
And many more

Why Choose This Plugin

FAST – Quick OTP authentication process
FRIENDLY – Simple user experience
SMART – Intelligent access handling
SMOOTH – Clean UI integration
SECURED – Strong authentication protection

Basic Mode and Advanced Features

Explore the default basic mode screenshots below, designed to be simple and beginner-friendly for non-technical admins. For screenshots of advanced integrations, customization, and extended functionality, visit the Plugin Showcase.

Support

Feedback helps improve this plugin.
Send suggestions or issues to:
[email protected]

Notes

This is the Lite version with advanced features included for exploration.
Visit the plugin homepage to discover everything available across editions.

Email OTP Authenticator – Login, Register & 2FA