Baconian cipher decode
Baconian cipher decode, classical cipher, a puzzle not a protection, computed on your device. Only the A/B letters carry information, so every space, digit and punctuation mark in the ciphertext is dropped and the plaintext comes back lowercase, letters only.
Runs on your device. The file is never uploaded.
Baconian cipher decode keeps only the letters A and B from your file, reads them in groups of five, and prints one lowercase letter per group. Case is folded first, so a and b serve as well. A group whose five bits exceed 25 maps to no letter in this 26 letter alphabet, and the run stops naming that group.
Questions
What input does this expect?
Groups of five A and B symbols, one group per letter. Strip the carrier text first if the message was hidden in typography or capitalisation, because this tool reads the letters A and B, not fonts.
Why is my output lowercase with no spaces?
Because Baconian code carries no case, spacing or punctuation. Five symbols encode one letter of the alphabet and nothing else, so word boundaries have to be put back by you.
What if my groups use 0 and 1?
Convert them to A and B first. The decoder reads the A and B alphabet, and a substitution in any text tool takes a moment.
Why did some letters come out wrong?
Usually a variant mismatch. In the 24-letter version I and J share a code, as do U and V. If the message was written with the 26-letter version, those letters decode differently. Check which one the source used.