Blowfish Encrypt / Decrypt

Legacy block cipher

100% local — nothing is uploaded
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How to use

  1. Choose mode and padding.
  2. Provide a key (raw hex or passphrase) and IV where needed.
  3. Encrypt or decrypt and copy the ciphertext.

FAQ

Should I use Blowfish?

Prefer AES for new systems. Blowfish remains useful for legacy interoperability.