AES Encrypt / Decrypt
Symmetrically encrypt and decrypt text using AES securely in your browser.
How to Use the Free AES Encryptor
Our AES Encryption Tool allows users to safely lock sensitive communications using advanced cryptography. Enter a strong Secret Passphrase into the top input. Then, type your plain text message into the left field and click "Encrypt to AES" to generate a scrambled Base64 string. To decrypt, provide the matched Base64 string on the right alongside the exact secret key.
Key Features
- Military-Grade Security: Operates utilizing the Advanced Encryption Standard (AES), the identical cryptographic cipher trusted by the US Government for classified data.
- Bi-directional Operations: Seamlessly swap between locking messages and unlocking intercepted ciphertext payloads dynamically.
- Absolute Privacy First: The execution leverages native Javascript runtime modules functioning exactly offline. We absolutely never transmit passwords or plaintext out of your local network environment.
Frequently Asked Questions
What happens if I lose my secret key?
Losing your established decryption passphrase means your encrypted message is permanently locked. AES algorithms purposefully lack any "backdoor" recovery capabilities mathematically.
Why does the same text output completely different ciphertext?
Modern secure cryptographic operations implement randomized 'salting' algorithms continuously. This intentional modification prevents hackers from identifying matching encrypted strings across different database records.