Two-Factor Authenticator

This is a privacy-focused offline two-factor authentication (2FA) web application that stores all OTP secrets in a locally encrypted JSON vault compatible with Aegis Authenticator backups and exports, giving users full ownership and control of their data without relying on cloud services. All data is encrypted on-device using Aegis-compatible encryption before being written to disk, ensuring that the vault remains unreadable without the correct password even if it is copied or intercepted, while still allowing users to sync or back up the encrypted file using any preferred method. It supports seamless use with existing Aegis encrypted backups, optional conveniences like remembering file handles or temporarily storing the session password in browser memory, and a fast, keyboard-driven workflow with shortcuts for navigation, copying OTP codes, and searching. A built-in fuzzy search system helps quickly locate accounts by matching names, issuers, or groups, making it efficient to manage large vaults while keeping everything secure, local, and fully under user control.

A privacy-focused two-factor authentication (2FA) web application that securely stores OTP and TOTP secrets in a locally encrypted, Aegis-compatible JSON vault. All data is encrypted on-device before being written to disk using strong password-based encryption, ensuring that no sensitive information is ever stored in plaintext or exposed to external servers. This design gives users full ownership of their authentication data while keeping the system fully offline and independent of cloud services.

This web application is fully compatible with Aegis Authenticator backups, allowing users to import and continue using existing encrypted vaults without any migration steps. It supports flexible local file storage so the encrypted vault can be synced or backed up using any third-party tool, while remaining unreadable without the correct password.

For convenience, optional features include remembering previously opened file handles for faster access and temporarily storing the session password in browser memory, which is automatically cleared when the browser session ends. The interface is designed for speed and efficiency, offering a keyboard-driven workflow with shortcuts for navigation, quick code copying, and instant search.

A built-in fuzzy search system makes it easy to locate accounts even in large vaults by matching account names, issuers, or groups, ensuring fast access to authentication codes when needed.

Need more help?

This web application is a port of the "2FA (Two-Factor Authentication)" browser extension which is available for Chrome and Edge browsers. Please visit the FAQs page of the extension for more tips!