Encrypt / Decrypt Text
Lock a message or file with a password so only someone who knows it can read it.
- Your data never leaves your device
- 100% free
- No sign-up
- Works offline after first load
How to encrypt text with a password
- Type the text and a strong password.
- Choose Encrypt or Decrypt (or let it detect) and press Run.
- Copy the result — or encrypt and decrypt whole files.
About Encrypt / Decrypt Text
Encrypt text and files with a password using AES-256-GCM.
It works in your browser for speed and privacy, remembers your settings on this device, and every result can be copied, downloaded or shared.
Good for
- Sending secrets by email or chat
- Storing notes and keys safely
- Exchanging data with OpenSSL scripts
Tip: Share the password through a different channel than the encrypted text.
Frequently asked questions
How secure is it?
It uses AES-256-GCM, with the key derived from your password by PBKDF2-SHA256 with 600,000 rounds and a random salt — the same building blocks banks and password managers use. Security then depends on a strong password.
Can I decrypt it with OpenSSL?
Choose “OpenSSL compatible” and decrypt with: openssl enc -d -aes-256-cbc -pbkdf2 -a. Text encrypted by OpenSSL or CryptoJS.AES can be decrypted here too.
Can I encrypt files?
Yes — any file is encrypted in your browser and saved as .enc; decrypt it here with the same password to get the original name and content back.
What if I forget the password?
The data cannot be recovered — there is no back door. Keep the password in a password manager.
Is it private?
Yes. Everything is generated or calculated in your browser with the Web Crypto API — nothing you type is uploaded, logged or put in share links.