Military-Grade File Encryption • Client-Side Only • Zero Data Transmission
ByteLock is a fully client-side file encryption system that executes all cryptographic operations locally within the user’s browser environment. Utilizing AES-256 in GCM mode, ByteLock ensures confidentiality and integrity without transmitting or storing any file data on external servers. The application follows a zero-knowledge design which means encryption keys are generated, used, and disposed of entirely in-memory on the client side. ByteLock provides robust, verifiable security while maintaining complete local data control.
- Military-Grade Encryption: AES-256 encryption algorithm
- 100% Client-Side: All encryption happens in your browser - zero server uploads
- Multiple File Support: Encrypt multiple files at once with automatic ZIP packaging
- Drag & Drop: Intuitive drag-and-drop interface with file reordering
- Smart File Icons: Automatic file type detection with color-coded icons
- Large File Support: Handle files up to 1GB (5GB total)
- Real-Time Progress: Live encryption/decryption progress tracking
- Password Strength Meter: Real-time password validation and strength indicator
- Batch Operations: Remove all files at once or individually
- Framework: Next.js 15.2 (React 19)
- Language: TypeScript 5
- Styling: Tailwind CSS + Tailwind Animate
- UI Components: Radix UI
- Icons: Lucide React
- File Compression: JSZip
- Encryption: Web Crypto API(Local in-browser) (AES-256-GCM)
- Deployment: Vercel
- AES-256-GCM Encryption: Industry-standard encryption algorithm
- Client-Side Processing: Files never leave your browser
- Zero Data Transmission: No server uploads or cloud storage
- Password-Based Key Derivation: PBKDF2 with 100,000 iterations
- Secure Random Salt: Unique salt for each encryption
- Authentication Tags: Ensures data integrity and authenticity
ByteLock automatically detects and displays appropriate icons for:
- Documents (PDF, DOC, TXT)
- Images (JPG, PNG, GIF, SVG)
- Videos (MP4, AVI, MOV)
- Audio (MP3, WAV, FLAC)
- Archives (ZIP, RAR, 7Z)
- Code Files (JS, TS, PY, etc.)
- Spreadsheets (XLS, CSV)
- Minimum 8 characters required
- Real-time strength indicator (Weak/Medium/Strong)
- Visual feedback with color-coded progress bar
- Automatic validation before encryption
- Detailed error messages for incorrect passwords
- File corruption detection
- File size validation (1GB per file, 5GB total)
- User-friendly suggestions for common issues
This project is licensed under the MIT License - see the LICENSE file for details.