🔐 Caesar Cipher Encryption-Decryption Tool (Python)

A simple Python-based Caesar Cipher tool that lets users encrypt or decrypt text by shifting letters through the alphabet while preserving non-alphabetic characters, featuring an interactive command-line interface for quick message encoding and decoding with customizable shift values.

🧩 Features

• Encrypt and decrypt messages easily.
• Supports both uppercase and lowercase letters.
• Keeps numbers, spaces, and special characters unchanged.
• Interactive and beginner-friendly command-line interface

💻 Usage Example

=== Caesar Cipher ===
Do you want to (E)ncrypt or (D)ecrypt? E
Enter your message: Hello World!
Enter shift number (e.g., 3): 3
Encrypted message: Khoor Zruog!