Blowfish Encryption Tool

Encrypt and decrypt text using the Blowfish algorithm. All processing is done in your browser - no data is sent to any server.

Input Text:

Output:

How to Use

Enter the text you want to encrypt/decrypt in the input field
Provide an encryption key (4-56 bytes)
Choose between CBC (more secure) or ECB mode
Click Encrypt or Decrypt button
Use the Copy button to copy the result to your clipboard

Note: CBC (Cipher Block Chaining) mode provides better security than ECB (Electronic Codebook) mode as it adds randomization to the encryption process.