AES Encrypt/Decrypt
Encrypt and decrypt text using AES-256-GCM. 100% client-side, no data sent to servers.
All encryption/decryption happens in your browser. No data is sent to any server.
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What is this tool?
AES Encrypt/Decrypt tool performs Advanced Encryption Standard operations using symmetric key encryption. AES is the gold standard for data security, used by governments and businesses worldwide. It supports AES-128, AES-192, and AES-256 with GCM mode for authenticated encryption. All operations happen locally in your browser.
How to use
- 1
Select mode
Choose Encrypt or Decrypt.
- 2
Enter text and key
Input the plaintext/ciphertext and encryption key.
- 3
Get result
See encrypted or decrypted output.
Frequently Asked Questions
What is AES encryption?
AES (Advanced Encryption Standard) is a symmetric encryption algorithm adopted by the U.S. government in 2001. It uses the same key for encryption and decryption and supports key sizes of 128, 192, or 256 bits. AES-256 is considered virtually unbreakable by brute force.
Is AES symmetric or asymmetric?
AES is symmetric, same key encrypts and decrypts. Key sizes: 128, 192, or 256 bits.
What encryption standard is used?
The tool implements standard algorithms as defined by NIST. For production security use well-tested libraries.