Offline Password Manager

Offline Password Manager is a modern, high-security Android password manager built with a Zero-Knowledge, Offline-First architecture. Unlike cloud-based solutions, Offline Password Manager stores all your credentials exclusively on your device, ensuring you have absolute control over your sensitive data.

It offers a streamlined workflow for organizing your digital identity while maintaining a strict "no-internet" policy. The interface is designed to be both powerful for power users and intuitive for everyone, featuring a responsive design that looks stunning in any theme.

Security Architecture

Offline Password Manager is designed for users who don't want their most sensitive secrets touching the internet.

• Zero Network Access: The app does not request the INTERNET permission. It is physically impossible for data to be transmitted to any server.
• Local-Only Storage: All data is stored in a hardware-backed encrypted database using AES-256 encryption via SQLCipher.
• Hardware-Backed Keys: Your encryption keys are tied to your device's secure enclave (Biometrics/PIN), ensuring they never leave your hardware.
• No Analytics: We collect no telemetry, track no usage, and have no way of knowing who you are.

Key Features

• Offline-First: Reliable, fast, and completely private.
• Multi-Mode Transfer (Android-to-Android): QR Code chunks move small batches via encrypted, point-and-scan transfer.
• Cross-Platform Readiness: Export an encrypted PDF for manual recovery or a CSV compatible with Apple's iCloud Keychain.
• Biometric Unlock: Secure and convenient access via Fingerprint or Face Unlock.
• Modern Jetpack Compose UI: A premium, responsive design.

Interface & Themes

Experience Offline Password Manager in both Light and Dark themes. The UI automatically adapts to your system settings for a comfortable viewing experience.

Built With

• Kotlin & Jetpack Compose for a modern UI.
• Room Persistence Library for structured data.
• SQLCipher for 256-bit AES database encryption.
• PDFBox-Android for secure PDF generation.
• Coroutines & Flow for reactive data handling.

Build Instructions

To build Offline Password Manager from source, you will need Android Studio Ladybug (or newer) and JDK 17+.

1. Clone the repository:

   git clone https://github.com/yourusername/PassCrypt.git

2. Open the project in Android Studio.
3. Sync Project with Gradle Files.
4. (Optional) Provide your own release_keystore for signing.
5. Build and run on your device.

Note: The official release in the root directory is signing-protected. You must use your own keys for custom builds.

License

Offline Password Manager is released under the GNU General Public License v3.0 (GPL-3.0). See the LICENSE file for more details.

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This project is for educational and personal use. Security is our priority, but always ensure your device itself is secure.