cipher

Rotate character codes by any shift amount, across letters-only, printable, or the full 7-bit ASCII range.

Bitwise XOR two equal-length ASCII strings, character-by-character, the classic building block of a XOR cipher.

Reverse this site's FakeHex letter cipher back to the original hex string, exactly.

Substitute each hex digit for a letter using this site's own fixed FakeHex cipher table.

Convert space-separated numbers 1-26 back to their letters.

Shift every letter backward by N positions in the alphabet, wrapping a to z.

Shift every letter forward by N positions in the alphabet, wrapping z to a.

Convert each letter to its 1-based alphabet position number (a=1 ... z=26).

Apply the classic ROT13 letter-rotation cipher to text.

Shift printable ASCII characters by 47 places, a self-inverse cipher.