Caesar Cipher
Encrypt or decrypt with a Caesar cipher, shifting each letter by your chosen amount and wrapping around the alphabet. Non-letters are left alone and case is preserved. Use a negative shift to decode.
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Worked example
Dwwdfn dw gdzq
Inputs
- Shift
3
Frequently asked
How do I decrypt?
Apply the opposite shift (for example −3 to undo +3).
Does it change numbers or spaces?
No, only letters are shifted.