How is my text encrypted?

It uses AES-256-GCM with a key derived from your password via PBKDF2 (SHA-256, 100,000 iterations) and a random salt and IV. Everything runs locally in your browser.

Why does decryption fail?

Decryption fails if the password is wrong or the encrypted text was altered or incomplete. Use the exact password and paste the full base64 output.

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Text Encrypt / Decrypt

Encrypt and decrypt text with a password.

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How to use the Text Encrypt / Decrypt

1Choose Encrypt or Decrypt mode.
2Enter your message and a password.
3Click the button and copy the result.

About the Text Encrypt / Decrypt

Free online text encrypt and decrypt tool. Protect messages with a password using AES-256-GCM and PBKDF2. Runs fully in your browser, no upload.

Part of our Security collection. Browse all tools.

Frequently asked questions

How is my text encrypted?: It uses AES-256-GCM with a key derived from your password via PBKDF2 (SHA-256, 100,000 iterations) and a random salt and IV. Everything runs locally in your browser.
Why does decryption fail?: Decryption fails if the password is wrong or the encrypted text was altered or incomplete. Use the exact password and paste the full base64 output.

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