Cryptogram Solver

This free cryptogram solver cracks substitution-cipher puzzles — the kind where every letter is consistently swapped for another. Paste the encrypted text and hit Auto-solve: it runs a hill-climbing search scored against English letter and trigram frequencies to recover the most likely mapping. You can also fill the key manually — type a guess under any cipher letter and the whole puzzle updates live — or seed it with a frequency-based first guess. Longer cryptograms (a full sentence or more) solve most reliably.