Encode or decode a cipher. Click on cipher type:


Digraphic:


Fractionated:


Multiple Substitution:


Periodic:


Transposition:


Other:

Encode only:
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Warning: Error checking is improved, but not foolproof. If you make a data entry error (entering numbers when letters are
called for, for example) the resulting error message will not be very helpful.    (more info ).
BION Source code    (ACA Home)