• Easily encrypt and decrypt text. No account registration is required.
  • Generate URL for decryption.
    You can access the decryption URL and decrypt with a passphrase.
  • Encryption and decryption are performed by the browser. No data is sent to the server, so it is safe.
  • Encrypted data can be manually decrypted. In the unlikely event that this server is down, or this service is terminated, you can still decrypt.
By using this service, text can be easily encrypted and decrypted.


Text to be encrypted

Enter the text you want to encrypt.

Unauthorized decryption is unlikely.
However, it is better not to set the site name, ID, password, etc. for the text you want to encrypt.
e.g. Password only


Enter a passphrase. This is required for decryption.
Click on the icon to toggle between password or text entry.

When entering a passphrase, keep the following points in mind.

  • It must be at least 8 characters long.
    It is recommended that you set a long passphrase that includes symbols, letters (upper and lower case), and numbers.
  • Avoid easy-to-guess, simple passwords.


Enter the number of iterations, if necessary.

The larger the size, the longer it takes to encrypt, but the higher the security.
Processing speed depends on your device.

Simplify the decryption page

Simplify the decryption page.
For example, when managing passwords in Notion, it is useful to use it as an embedded page.
Click on the icon to enter a passphrase for decryption.

For more information, please see the Case Studies section.

Decryption URL

You can get the URL to decrypt the encrypted text.
Keep the decryption URL safe.

Make sure you can decrypt the text.
Please note that decryption will not be possible if the passphrase is entered incorrectly or forgotten.


Accessing the decryption URL will display a form that allows you to decrypt the text.
Decryption can be performed by correctly entering the passphrase and the number of iterations.

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