Your cryptanalysis toolkit for the modern age.
A free, in-browser cryptanalysis playground. Build a dashboard of analysis widgets, load ciphertexts, and investigate entirely client-side — no account, no server, no data sent anywhere.
Everything you need to crack the code.
Professional-grade cryptanalysis tools designed for hobbyists and enthusiasts.
Customizable Widget Dashboard
Drag, drop, and resize analysis widgets to build your perfect workspace. Every session is yours to arrange.
Multiple Ciphertext Comparison
Load and compare multiple ciphertexts side-by-side to spot patterns and relationships across your inputs.
Statistical Analysis Tools
Frequency analysis, index of coincidence, Kasiski examination, chi-squared tests, entropy — all at your fingertips.
Automated Solvers
Let the solvers do the heavy lifting. Automated cipher-cracking tools for substitution, Vigenere, columnar transposition, and more.
Wide Encoding Support
Hex, Base64, binary, octal, Morse, URL encoding — easily convert between formats before running your analysis.
Runs Entirely in Your Browser
No data leaves your machine. Everything runs client-side — no account needed, no server, no tracking.
Powerful tools for every cipher.
Our toolkit has you covered with specialized analysis widgets.