AES Encrypt / Decrypt
Encrypt and decrypt text using AES-256-GCM — runs 100% in your browser via Web Crypto API
AES Encrypt / Decrypt — Free Online
Encrypt and decrypt text using AES-256-GCM — the gold standard for symmetric encryption. Runs 100% in your browser via the Web Crypto API. Your data never leaves your device.
FAQ
What is AES-256?
AES (Advanced Encryption Standard) with a 256-bit key is the encryption standard used by governments, banks, and militaries worldwide. It is considered unbreakable with current technology.
What is GCM mode?
GCM (Galois/Counter Mode) provides both encryption and authentication — it detects if the ciphertext was tampered with, making it more secure than older modes like CBC.
What is the difference between encryption and hashing?
Encryption is reversible — you can decrypt ciphertext back to plaintext with the key. Hashing is one-way — you cannot reverse a hash.
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