Encode and decode messages instantly with these offline cipher tools. Protect your plain text and encrypt and decrypt text using classic cryptographic methods including the caesar cipher, ROT13, and the vigenere cipher. Perfect for learning cryptography, solving puzzles, or sending encoded notes.
Key Features:
• Multiple Algorithms: Supports Caesar cipher, ROT13, and Vigenere keyphrase ciphers
• Interactive Modes: Switch between encrypt and decrypt options with one tap
• Custom Keys: Define integer values for Caesar shifts and alphanumeric keys for Vigenere
• Copy to Clipboard: Copy your encoded or decoded text output instantly
• Responsive UI: Sleek layout with smooth scrolling and color-coded statuses
How to Use:
• Choose your desired algorithm (Caesar shift, ROT13, or Vigenere)
• Select either Encrypt or Decrypt mode
• Enter your key or password and type the input message to see output instantly
Privacy & Experience:
• No ads
• No in-app purchases
• Works completely offline
• No account required