Simple online tools for developers, networking, text and conversions.

Developer Tools

Rabbit Decrypt

Decrypt Rabbit ciphertext instantly with the same passphrase.

Tool

Use this Rabbit Decrypt tool to reverse Rabbit-encrypted Base64 text using the original passphrase. It is useful for browser-side crypto demos, compatibility testing, reversible stream-cipher workflows, and checking whether encrypted samples return to readable plain text correctly.

About this tool

Use this Rabbit Decrypt tool to reverse Rabbit-encrypted Base64 text using the original passphrase. It is useful for browser-side crypto demos, compatibility testing, reversible stream-cipher workflows, and checking whether encrypted samples return to readable plain text correctly.

Use rabbit decrypt when you need a fast browser-based result without extra setup. It works well for quick checks, one-off tasks, and routine formatting or calculation work.

Learn more

Why use this tool

How to use

  1. Enter the passphrase on the first line
  2. Paste the Base64 ciphertext below it
  3. Click Run Tool to decrypt the value
  4. Review the plaintext output
  5. Use the exact same passphrase that was used for encryption

Examples

Example

Input

rabbit-key
Base64 encrypted text

Output

hello world

Useful for reversing a Rabbit-encrypted sample.

Example

Input

demo-pass
Base64 encrypted text

Output

api_key=12345

Useful for checking reversible passphrase-based stream encryption.

Common errors

The wrong passphrase is used

Fix: Use exactly the same passphrase that was used for encryption.

The ciphertext is not valid Base64 or not actually Rabbit output

Fix: Paste Base64 ciphertext produced by the matching Rabbit encrypt flow.

The input format is reversed

Fix: Put the passphrase first and the ciphertext below it.

The user expects decryption of another cipher type

Fix: Use the matching decrypt tool for the actual cipher.

The plaintext output is empty or invalid

Fix: This usually means the passphrase or ciphertext format is wrong.

FAQ

What does Rabbit Decrypt do?

It decrypts Rabbit Base64 ciphertext back into readable text.

Do I need the same passphrase?

Yes. Rabbit decryption requires the exact same passphrase.

What format should the ciphertext use?

Use Base64 ciphertext produced by the matching Rabbit encrypt flow.

Why is the output broken or empty?

The most common reasons are the wrong passphrase or invalid ciphertext.

What is the reverse of Rabbit Decrypt?

The reverse tool is Rabbit Encrypt.

Use cases

Related tools