Kerveros is a robust, cross-platform two-factor authentication (2FA) code generator that combines enterprise-grade security with user-friendly features. Generate time-based one-time passwords (TOTP) for all your online accounts while keeping your secrets encrypted and protected.
Key Features:
- Master Password Protection: SHA-256 hashing with salting for enhanced security
- Encrypted Secret Storage: XOR encryption with initialization vectors
- TOTP Code Generation: RFC-compliant time-based one-time passwords
- Real-time Code Updates: Automatic refresh every 30 seconds with visual countdown timer
- QR Code Import: Drag and drop or file menu import of QR code images
- One-Click Copy: Instant clipboard copy with visual feedback
- Password Attempt Limiting: 5 attempts before factory reset option
- System Tray Integration: Minimize to tray with quick restore
- Export/Import Functionality: Full backup and restore capabilities
- Single Instance Enforcement: Prevents multiple app conflicts
Kerveros is designed for security-conscious users who need a reliable, secure, and easy-to-use 2FA code generator with master password protection for all their online accounts including GitHub, Google, PayPal, Discord, and more.
Screenshots
Observed history
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No observed changes yet.
The initial import establishes a baseline. Future version changes will appear here.
Browse the app catalogue →Upstream releases
Release notes supplied by the developer. These dates are not Flathub package publication times.
1.0.12 Mar 2026
Security and cloud synchronization improvements.
- Added cloud database support using symbolic links
- Move database to cloud-synced folders from within the application
- Use existing cloud database across multiple devices
- Automatic backup creation before database relocation
- Configuration location viewer showing real path or symlink target
- Encrypted storage extended to issuer, group, and comments metadata
- Improved database safety checks and user warnings
- Alphabetical account sorting (case-insensitive)
- General stability and usability improvements
- Supported Cloud Locations Works with Nextcloud (~/Nextcloud), OneDrive (~/OneDrive), Dropbox (~/Dropbox), Google Drive (~/Google Drive), MEGA (~/MEGA), pCloud (~/pCloud Drive), and Tresorit (~/Tresorit).
1.0.013 Nov 2025
Initial release of Kerveros on Flathub.
- Master password protection with SHA-256 hashing and salting
- Encrypted secret storage using XOR encryption
- TOTP code generation with real-time updates
- QR code import via drag and drop or file menu
- One-click copy to clipboard with visual feedback
- Password attempt limiting and factory reset protection
- System tray integration and single instance enforcement
- Export/import functionality for backup and restore
- Cross-platform Qt interface