AES Encryption - Encrypt & Decrypt Text Online
Encrypt and decrypt text using AES-256-GCM encryption online for free. Military-grade encryption with password-based key derivation. All encryption happens locally in your browser - your data never leaves your device.
Military-Grade Security
AES-256-GCM provides authenticated encryption used by governments and militaries worldwide.
100% Private
All encryption and decryption happens locally. Your text and password never leave your browser.
Easy to Use
Simple interface for encrypting and decrypting text with just a password.
About AES-256-GCM
- • AES-256 with Galois/Counter Mode (GCM) for authenticated encryption
- • Password-based key derivation using PBKDF2 with 100,000 iterations
- • All encryption happens locally in your browser
- • Save your password - it's required for decryption
What is AES Encryption?
AES (Advanced Encryption Standard) is a symmetric encryption algorithm established by the U.S. National Institute of Standards and Technology (NIST) in 2001. It's the most widely used encryption standard globally, trusted by governments, financial institutions, and security professionals worldwide.
Why Use AES-256-GCM?
- 256-bit Key: Provides maximum security with 2^256 possible keys
- GCM Mode: Galois/Counter Mode provides both encryption and authentication
- Fast Performance: Hardware-accelerated on modern processors
- Industry Standard: Used by TLS, IPsec, and major cloud providers
- Authenticated: Detects if encrypted data has been tampered with
How to Use This Tool
- Choose Mode: Select "Encrypt" to encrypt text or "Decrypt" to decrypt encrypted text
- Enter Text: Type or paste the text you want to encrypt/decrypt
- Enter Password: Provide a strong password for encryption/decryption
- Process: Click the button to encrypt or decrypt
- Save Result: Copy the encrypted text or decrypted message
Security Best Practices
- Use a strong, unique password for encryption
- Store your password securely - you'll need it for decryption
- Don't share encrypted text and password through the same channel
- For maximum security, use a password manager to generate and store passwords
- This tool uses PBKDF2 with 100,000 iterations for key derivation