AES Encryption Tool
Encrypt and decrypt text with AES and a password, right in your browser.
Real encryption, unlike encoding
Unlike Base64 or a plain hash, AES is genuine encryption: it scrambles your text with a password so that, without that password, the result is unreadable. This encrypts text you provide with a password and decrypts it back when the same password is supplied — useful for protecting a note, a snippet or a value you need to store or send with some confidentiality.
Enter your text and a password to encrypt, or the encrypted output and password to decrypt.
The password is everything
With AES, the security lives entirely in the password. A strong, unique password makes the encryption genuinely hard to break; a weak or guessable one undermines it completely, since an attacker who guesses the password gets everything. There is also no recovery — lose the password and the data is gone for good, which is the point but also a real risk. Because it all runs in your browser, your text and password never leave your device, but that also means the responsibility for keeping the password safe is entirely yours.
AES Encryption Tool FAQ
How is this different from Base64 or hashing?
AES is real encryption — without the password the output is unreadable. Base64 is trivially reversible and a hash is one-way.
What happens if I lose the password?
The data cannot be recovered. With AES there is no back door, so a lost password means lost data.
Is my text uploaded?
No. Encryption and decryption happen in your browser, so your text and password stay on your device.