Local 2FA: Secure OTP Manager — nahuel

Local 2FA is an extension for managing OTP codes focused on privacy and security. It is easy to use and very practical when you need the codes generated when logging into online accounts. In the extension settings, users can increase the level of privacy and security by setting a PIN to unlock the extension and taking action when there are too many failed unlock attempts. It is also possible to activate camouflage mode so that the extension does not appear at first glance to be an OTP code manager extension.

MAIN FEATURES OF THE EXTENSION:
Security & Privacy
- Complete offline operation - no internet connection required
- Local-only storage - secrets never leave your device
- Zero telemetry - no data collection or tracking
- Open source - fully auditable code
- PIN encryption using PBKDF2 with SHA-256

Advanced Protection
- PIN lock with configurable auto-lock timer
- Failed attempt monitoring with customizable thresholds
- Decoy mode - generates realistic fake accounts after breach attempts
- Disguise mode - camouflages extension interface for additional privacy
- Automatic data wipe options for maximum security

User Experience
- Clean, modern interface with dark theme support
- The extension has two languages (English and Spanish)
- Floating window for quick code access on any webpage
- One-click code copying
- Visual countdown timer for code expiration
- Multi-language support (English/Spanish)
- Compatible with Google Authenticator, Authy, and all TOTP services

Technical Details
- Built with Manifest V3 for enhanced security
- Pure JavaScript - no external dependencies
- Uses Web Crypto API for secure code generation
- Supports standard TOTP (RFC 6238) protocol

Perfect for users who prioritize privacy and want complete control over their authentication data without relying on cloud services.