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Caesar cipher / ROT13

Encrypt by shifting letters by a set amount. ROT13 supported. Free.

Shift13 (ROT13)

Caesar cipher / ROT13

Encrypts by shifting the alphabet by a set amount. A shift of 13 is ROT13 (its own inverse).

What is Caesar Cipher?

A Caesar-cipher tool that shifts letters a fixed number of places to encrypt and decrypt. Use it for learning ciphers and simple puzzles.

How it works

1 Enter the text and the number of places to shift.
2 Check the encrypted or decrypted result.

Frequently Asked Questions

Can I choose how far to shift? ⌄

Yes. You can freely set the number of places.

Can I use it for security? ⌄

It is for learning and fun and is not suitable for real security.

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