2FAGuard

2FAGuard is a Windows application that manages two-factor authentication codes. It imports tokens from Google Authenticator, Bitwarden, Aegis Authenticator, and 2FAS. The application encrypts data using the AEGIS-256 algorithm and supports Windows Hello for fingerprint or facial recognition access. It offers dark mode, a portable version without installation, and is available in English, German, and Chinese.

★★★★★

5.0(1 ratings)

• Bulk token import. This function transfers multiple 2FA codes from other applications compatible with the TOTP standard. The user selects backup files or enters URLs with encrypted data. The system processes tokens in batch, preserving account names and secret keys. This feature accelerates migration between platforms without manually re-entering each code.
• Encrypted data export. Users can extract all tokens and settings to an encrypted file. The export format follows standard structures for compatibility with other 2FA managers. The function includes an option to password-protect the exported file. This allows transferring information between computers or creating external backups against system failures.
• Windows Hello authentication. Integration with the Windows biometric system to unlock the application. The user accesses codes using fingerprint, facial recognition, or physical security key (FIDO2). This function avoids entering master passwords each time a code is needed. The operating system manages biometric data without transmitting it to the application.
• AEGIS-256 encryption with Argon2id derivation. The software protects secret keys, account names, and notes using the AEGIS-256 algorithm. Key derivation uses Argon2id, resistant to specialized hardware attacks. All processing occurs locally on the user's device. Encrypted data remains inaccessible without correct authentication.
• Full dark mode. Interface with high-contrast color palette for low-light conditions. This function reduces eye strain during night sessions. All graphical elements, including QR codes and token lists, automatically adapt to the dark theme. The mode preserves readability without compromising visual security of data.
• Automatic clipboard clearing. After copying a verification code, the system clears the clipboard after a configurable time. This prevents temporary codes from remaining exposed in system memory. The clearing interval is adjustable in milliseconds from settings. The function operates in the background without interrupting other copy operations.
• Inactivity lock with timer. The application automatically locks after a period without user interaction. Inactivity time is configurable from 1 to 30 minutes. When locked, re-authentication through Windows Hello or password is required. This prevents unauthorized access when the user forgets to manually close the session.
• Portable version without installation. Standalone executable that does not modify system registry or create folders in Program Files. The user saves the file on a USB drive or synchronized cloud folder. All encrypted data is stored within the application's directory. This allows using 2FAGuard on computers with installation restrictions.
• Integrated multilingual support. Interface translated into English, German, Chinese, Estonian, and Tatar. Automatic detection of operating system language selects the corresponding translation. Menu texts, dialogs, and notifications change without restarting the application. Translation contributions come from the user community.
• Strict executable validation during updates. The update mechanism verifies digital signatures of downloaded files before installation. This prevents execution of modified or counterfeit binaries. The process uses cryptographic certificates embedded in the base application. Updates automatically fail if verification is unsuccessful.
• URL-encoded secret decoding in OTP URIs. When importing codes from otpauth:// links, this function correctly processes percent-encoded special characters (%2A, %20, etc.). The system restores original secret key values without parsing errors. This allows importing tokens from QR codes generated by external applications using URL encoding.
• Icon pack with 40 new images. Graphical database that assigns custom icons to common services (Google, Microsoft, GitHub, etc.). Users view each token with the corresponding service logo. This function improves quick identification among multiple accounts. Icons are stored locally without external internet connection.

2FAGuard began development in 2022 as a Windows project focused on local management of 2FA codes. The creators are independent developers specializing in desktop application security. The primary programming language is C# with .NET Framework, utilizing native Windows cryptographic libraries. The initial version included basic TOTP support and symmetric encryption. Subsequent iterations added Windows Hello, bulk import, and dark mode.

Alternatives to 2FAGuard:

OnlyKey

OnlyKey is a hardware device that combines a password manager, a two-factor (2FA/MFA) security key, and a file encryption token.

Price: $46   Size: 284 MB   Version: 5.5.0   OS: Windows, Linux, MacOS