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ToolyDay

Text Encrypt & Decrypt

Encrypt a message with a password using AES-256, and decrypt it again later. Everything happens in your browser.

Your files never leave your device

Choose Encrypt or Decrypt, enter your text and a password, then click the button. Share the password separately from the encrypted text.

About this tool

Text Encrypt & Decrypt protects a message with a password using AES-256 encryption, so you can store or send it safely and decrypt it later. It runs in your browser, so neither your text nor your password is ever sent to a server, and it is free with no sign-up.

Good to know: If you forget the password, the text cannot be recovered. Protection is only as strong as the password you choose.

Your files are processed entirely in your browser — nothing is ever uploaded to any server. Verify it yourself

Frequently asked questions

What encryption does it use?
AES-256-GCM, with a key made from your password using PBKDF2 and a random salt. Each time you encrypt, the result is different, even for the same text.
What if I forget the password?
The text cannot be recovered. The password never leaves your browser, so nobody, including us, can restore it.
How should I share the encrypted text?
Send the encrypted text and the password through different channels, for example the text by email and the password by phone. Use a long password, because a short one is easier to guess.