Data Encryption
AES Data Encryption
Encrypt and decrypt text with real AES-256/AES-128 encryption (Web Crypto API, PBKDF2 key derivation). Everything runs locally in your browser — your password and data are never sent anywhere.
Encryption Settings
Operation
Encryption Algorithm
Encryption Mode
GCM provides authenticated encryption with better performance
Use a strong password. This is your encryption key.
Input Text
0 characters
Encrypted Output
0 characters
About AES-256 Encryption
Algorithm Details
- AES: Widely used, well-studied encryption standard
- Key Size: 256 bits
- Mode: GCM (authenticated encryption)
- Real-world security: Depends on your password being strong and unique — AES strength doesn't help against a weak password
Security Features
- 🔒 All encryption happens locally in your browser
- 🔑 Your password is never sent to any server
- 📁 Support for text and file encryption
- ⚡ Fast — runs on your device, no upload/download roundtrip
Recent Operations
No operations yet. Encrypt or decrypt something to see history.
🔐 Security Guidelines for Encryption
Best Practices
- Use strong, unique passwords for each encryption
- Store passwords securely using a password manager
- Keep backups of both encrypted data and passwords
- Use different passwords for different types of data
Important Notes
- If you lose the password, the data is permanently lost
- This tool is for demonstration and learning purposes
- For production use, consider professional encryption tools
- Always verify encrypted data can be decrypted before deletion