DES • CBC / ECB • PKCS7

DES encrypt / decrypt

DES compatibility tool with CBC / ECB modes and PKCS7 padding. Accepts 8-byte hex key/IV and works with Base64 ciphertext, fully local in your browser.

Mode

Key (8-byte hex)

IV (8-byte hex, required for CBC)

Plaintext

Result

How to Use

Select Encrypt or Decrypt mode.
Select the Block Mode (CBC or ECB).
Enter an 8-byte (16 hex characters) Key.
If using CBC mode, enter an 8-byte (16 hex characters) Initialization Vector (IV).
Enter the text or ciphertext in the input box.
The result will appear automatically in the result box.

Tips

DES is an older encryption standard with lower security; use it only for legacy compatibility.
Key and IV must be 16 hexadecimal characters (0-9, A-F).
All calculations are performed locally in your browser; no data is uploaded.

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