Encrypts and decrypts text using AES-256-GCM directly in your browser — your data never leaves your device. Enter plaintext and a password to get a base64-encoded ciphertext, or paste ciphertext to decrypt it.
Open AES Encrypt / Decrypt → free, no sign-inAES-256-GCM is the encryption standard used by banks, governments, and security professionals worldwide. It's one of the strongest encryption algorithms available, and the AES Encrypt / Decrypt tool brings it directly to your browser. Type your text, set a password, and get a base64-encoded ciphertext. To decrypt: paste the ciphertext, enter the same password, and the original text comes back. Nothing touches a server at any point.
Encrypting sensitive notes before storage, passing confidential information through an insecure channel, protecting text data with a passphrase, or simply learning how AES encryption works in practice — this is the tool for it.
No tutorials. No learning curve. Open it and get started.
No server uploads. The encryption uses AES-256-GCM, which provides both confidentiality and authenticity — it detects if the ciphertext has been tampered with.
Completely free. No trial period. No premium tier for basic functionality. No account required. Use it as often as you need.
One job, done well. AES Encrypt / Decrypt was built to solve a specific problem cleanly. No feature bloat, no ads, no distractions.
How secure is AES-256-GCM?
Extremely secure — AES-256-GCM is used by governments and enterprises worldwide and is considered unbreakable with current technology.
Is my text sent to a server?
No — encryption and decryption happen entirely in your browser. Nothing leaves your device.
What happens if I forget the password?
The data cannot be decrypted without the password — there is no recovery option.
Can I encrypt large amounts of text?
Yes — the tool handles any size of text input.
Is this free?
Yes — completely free.
Free. Instant. No sign-in. Open it and get the job done.
Open AES Encrypt / Decrypt on Doathingy.com →