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Brain 2FA

Two Factor Authentication (2FA) plugin for WordPress.

by Braintum · github.com/braintum/brain-2fa · website

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Install

No release zip yet. The repository archive installs, but the folder name will carry the branch suffix and updates will not flow:

wp plugin install https://github.com/braintum/brain-2fa/archive/refs/heads/develop.zip
Readme github.com/braintum/brain-2fa ↗

A modern, secure Two-Factor Authentication (2FA) plugin for WordPress with support for TOTP authenticator apps and email-based verification.

Features

  • 🔐 TOTP Support - Compatible with Google Authenticator, Authy, and other authenticator apps
  • 📧 Email-Based 2FA - Alternative verification via email codes
  • 🎨 Modern UI - Clean, user-friendly interface for settings and setup
  • 🔄 Backup Codes - Generate emergency backup codes for account recovery
  • 👥 Role-Based Enforcement - Require 2FA for specific user roles
  • 📱 QR Code Generation - Easy setup with QR codes for authenticator apps
  • 🌐 Internationalization Ready - Fully translatable (i18n)
  • ⚡ Performance Optimized - Lightweight with modern JavaScript architecture
  • 🎯 WordPress Standards - Follows WordPress coding standards and best practices

Requirements

  • WordPress: 5.0 or higher
  • PHP: 7.4 or higher
  • Node.js: 18.0 or higher (for development)
  • npm: 9.0 or higher (for development)

Installation

Via WordPress Admin

  1. Download the latest release
  2. Navigate to Plugins > Add New in WordPress admin
  3. Click Upload Plugin and select the downloaded zip file
  4. Click Install Now and then Activate

Manual Installation

  1. Download and extract the plugin files
  2. Upload the brain-2fa folder to /wp-content/plugins/
  3. Activate the plugin through the Plugins menu in WordPress

Composer Installation

composer require braintum/brain-2fa

Configuration

Basic Setup

  1. Navigate to Settings > Brain 2FA in WordPress admin
  2. Configure your preferred 2FA method (Authenticator App or Email)
  3. Optionally enable force 2FA for specific user roles
  4. Save settings

User Setup

Users can set up 2FA from their profile page:

  1. Go to Users > Profile
  2. Scroll to the Brain 2FA section
  3. Enable 2FA and follow the setup instructions
  4. Save backup codes in a secure location

Development

Setup

# Clone the repository
git clone https://github.com/braintum/brain-2fa.git
cd brain-2fa

# Install PHP dependencies
composer install

# Install JavaScript dependencies
npm install

Build Assets

# Development mode (watch for changes)
npm run dev

# Production build
npm run build

# Development build (unminified)
npm run build:dev

# Lint JavaScript
npm run lint
npm run lint:fix

Project Structure

brain-2fa/
├── assets/              # Compiled assets (auto-generated)
│   ├── css/            # Compiled CSS
│   └── js/             # Compiled JavaScript
├── includes/           # PHP classes (PSR-4)
│   ├── Admin/         # Admin functionality
│   ├── Auth/          # Authentication logic
│   ├── TwoFactor/     # 2FA implementations
│   └── App.php        # Main application class
├── languages/         # Translation files
├── src/               # Source files (development)
│   ├── js/           # JavaScript source
│   │   ├── components/
│   │   └── utils/
│   └── scss/         # SCSS source
│       ├── _variables.scss
│       ├── _components.scss
│       └── ...
├── vendor/           # Composer dependencies
├── webpack.config.js # Webpack configuration
├── package.json      # NPM dependencies
└── composer.json     # Composer configuration

JavaScript Architecture

The plugin uses a modern JavaScript build system:

  • Webpack 5 for bundling
  • Babel for ES6+ transpilation
  • ESLint for code quality
  • Sass for styling
  • WordPress i18n for translations
  • Functional programming approach (no classes)

See README-JAVASCRIPT.md for detailed JavaScript development documentation.

Coding Standards

The plugin follows:

Translation

Generate POT file

wp i18n make-pot . languages/brain2fa.pot --domain=brain2fa

Create translations

  1. Use Poedit or similar tool to create .po files
  2. Compile to .mo files
  3. For JavaScript translations, generate JSON files:
wp i18n make-json languages --no-purge

Security

Reporting Vulnerabilities

If you discover a security vulnerability, please email security@braintum.com. All security vulnerabilities will be promptly addressed.

Security Features

  • Secure TOTP implementation using industry-standard algorithms
  • Rate limiting on login attempts
  • Encrypted storage of secret keys
  • Secure random generation for backup codes
  • CSRF protection on all forms

Contributing

We welcome contributions! Please follow these steps:

  1. Fork the repository
  2. Create a feature branch (git checkout -b feature/amazing-feature)
  3. Make your changes following WordPress coding standards
  4. Test thoroughly
  5. Commit your changes (git commit -m 'Add amazing feature')
  6. Push to the branch (git push origin feature/amazing-feature)
  7. Open a Pull Request

Development Guidelines

  • Write clean, documented code
  • Follow WordPress and PSR-4 standards
  • Add translations for all user-facing strings
  • Test on multiple WordPress versions
  • Update documentation as needed

Testing

# Run PHP tests (if available)
composer test

# Run JavaScript linting
npm run lint

# Check for WordPress coding standards
composer phpcs

Changelog

Version 1.0.0

  • Initial release
  • TOTP authenticator app support
  • Email-based 2FA
  • QR code generation
  • Backup codes
  • Role-based enforcement
  • Modern JavaScript architecture
  • i18n support

FAQ

How do I reset 2FA for a user?

As an administrator, you can disable 2FA for any user from their profile page in WordPress admin.

What happens if I lose my authenticator app?

Use one of your backup codes to log in, then set up 2FA again with a new device.

Can I use this plugin on multisite?

Yes, Brain 2FA is compatible with WordPress multisite installations.

Which authenticator apps are supported?

Any TOTP-compatible app works, including:

  • Google Authenticator
  • Microsoft Authenticator
  • Authy
  • 1Password
  • Bitwarden

Support

License

This plugin is licensed under the GPLv2 (or later).

Brain 2FA - Two Factor Authentication for WordPress
Copyright (C) 2026 Braintum

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.

Credits

Built with ❤️ by Braintum

Dependencies

Made with modern JavaScript and WordPress best practices 🚀