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Rabbit Stream Cipher - Encrypt & Decrypt Online

Free online Rabbit high-speed stream cipher encryption tool. Encrypt and decrypt text with a custom symmetric key. eSTREAM finalist algorithm for fast software encryption.

💡 Legacy version uses CryptoJS old algorithm implementation | Standard version uses CryptoJS latest standard implementation

How to Use Rabbit Encrypt/Decrypt

Quick Start Guide

1

Enter a secret key in the Key field - keep it safe as you will need it to decrypt

2

Paste or type the text you want to encrypt into the input area

3

Click Encrypt to encode using the Rabbit stream cipher, or Decrypt to decode

4

Copy the output result for your application or to share securely

Frequently Asked Questions

Rabbit is a high-speed stream cipher designed for software implementations. It uses a 128-bit key and 64-bit IV to generate a pseudorandom keystream. Rabbit was a finalist in the EU eSTREAM project and is known for its exceptional performance in software.
Rabbit is generally considered more secure than RC4 with no known practical attacks when used correctly. It also offers better performance on modern processors. Both are stream ciphers, but Rabbit has a more modern design with stronger cryptographic properties.
Rabbit is less common than AES in production systems but is valued in resource-constrained environments due to its high speed and low memory footprint. It is used in some embedded systems and IoT applications where software performance is critical.
No. Your key and plaintext never leave your browser. All encryption operations are performed client-side using JavaScript.

Still have questions? Check out our other tools or contact us for support.

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