AES-256 Encryption Tool
This tool provides secure encryption and decryption of text using the Advanced Encryption Standard (AES) with 256-bit keys - the same encryption standard used by governments and security experts worldwide.
Military-Grade Security
Uses AES-256, the strongest commercially available encryption standard
Client-Side Processing
All encryption happens in your browser - your data never leaves your device
Two-Way Protection
Securely encrypt messages for storage and decrypt when needed
Important Security Note: This tool performs encryption in your browser. For maximum security, ensure you're using a trusted device and network. Always remember your password - without it, your encrypted data cannot be recovered.
About AES Encryption
The Advanced Encryption Standard (AES) is a symmetric encryption algorithm established by the U.S. National Institute of Standards and Technology (NIST) in 2001. It's widely considered the gold standard for data encryption.
How AES Works
- 256-bit Keys: Uses 256-bit keys for encryption, providing 2^256 possible combinations
- Symmetric Algorithm: The same password is used for both encryption and decryption
- Block Cipher: Processes data in 128-bit blocks using substitution-permutation network
- Multiple Rounds: Data goes through 14 transformation rounds for maximum security
Security Best Practices
- Use strong, unique passwords (12+ characters with mixed types)
- Never share your encryption password through the same channel as the encrypted message
- For highly sensitive data, consider additional security layers
- This tool is for text encryption only - use file encryption for documents
Technical Details: This implementation uses AES-256-CBC (Cipher Block Chaining) mode with PBKDF2 for key derivation (1000 iterations) and a random salt for each encryption. The encrypted output includes all necessary parameters for decryption.