Want to encode messages? Our Text Encryptor uses the classic Caesar cipher to shift letters by a configurable amount, with a ROT13 preset for the most common shift.
How to Use
- Enter your text into the input area
- Set the shift amount (1-25, default ROT13 = 13)
- Choose encrypt or decrypt mode
- Copy the result with one click
Common Use Cases
- Puzzle games: Create and solve cipher puzzles
- Spoiler hiding: Encode spoilers that readers can decrypt
- Education: Learn about classical cryptography
- Fun: Send encoded messages to friends
Frequently Asked Questions
Is Caesar cipher secure? No. It’s a substitution cipher easily broken by frequency analysis. Use it for fun, not security.
What is ROT13? ROT13 shifts each letter by 13 positions. Since the alphabet has 26 letters, applying ROT13 twice returns the original text.
Try our free Text Encryptor now.
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