Tools
Free tools, no strings.
Small, honest utilities for thinking about post-quantum security. Everything runs in your browser; nothing you type is sent anywhere.
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The toolbox
Risk
Quantum risk calculator
Mosca’s inequality with sliders: will your migration finish before your data’s secrets expire?
Sign
Winternitz signature demo
Generate a one-time key, sign a message, verify it, then see what happens if you sign twice.
Hash
Hash avalanche playground
See why a good hash function gives away nothing about its input.
Compare
Signature size chart
Ed25519, ML-DSA, SLH-DSA, LMS, XMSS and friends, side by side.
Secrets
Passphrase generator
Diceware-style passphrases from a cryptographically secure random source, with honest strength estimates.
Have a system that has to hold?
Tell us what you're protecting and when it has to be ready. You'll get a straight answer on scope, timeline and price, usually within one business day.