Card Storage

Card Storage is a premium mobile application designed to securely store and manage your sensitive documents, cards, and images directly on your device. Built with Flutter for a smooth cross-platform experience, the app focuses on security, privacy, and simplicity.

🔐 Security You Can Trust

All files are protected using AES-256 encryption before being saved locally. A unique master key is derived from your personal passcode, ensuring only you can access your data. Even if someone gets physical access to your device, your files remain unreadable without your PIN.

Multi-Layer Protection

4-Digit Passcode: Required to view, edit, or delete any data.

Biometric Unlock: Use fingerprint for fast, secure access.

Auto Screen Lock: Protects your data if the app is left open.

📁 Smart File Organization

Store multiple images per record with custom titles

Built-in categories: Aadhaar, PAN, Passport, Driving License, Voter ID, and more

Create custom file types

Powerful search and filter by category

🖼️ Advanced Image Tools

Capture from camera or import from gallery

Built-in cropping for clean scans

Multiple images per entry

Optional compression to save storage without sacrificing clarity

Secure image viewer with smooth navigation

☁️ Backup & Restore

Export encrypted backups

Import on a new device to restore data

Password-protected backup files

Seamless device-to-device transfer

🎨 Customizable Experience

Blur card previews for privacy

Adjustable blur levels

Clean Material Design UI

Dark mode support

🔔 Notifications

Integrated with Firebase Cloud Messaging for important updates and alerts.

📱 Cross-Platform

Built with Flutter to deliver a consistent experience across Android and iOS, with native support for biometrics, camera, and secure storage.

How It Works

Sign In: Use Google Sign-In for personalization

Set Passcode: Create a secure 4-digit PIN

Add Documents: Capture or import images

Automatic Encryption: Files are encrypted before storage

Access Securely: Unlock using PIN or biometrics

Privacy First

No Cloud Storage: Files stay on your device

No Server Access: Encryption keys never leave your phone

Full Control: Export or delete your data anytime

Ideal For Storing

Government IDs, credit/debit cards, insurance papers, medical records, vehicle registration, property documents, and any private images.

Technical Highlights

AES-256 Encryption

Secure Key Storage in platform-protected areas

Streaming Encryption/Decryption for large files