A private security instrument
Secrets,
measured.
Make a secret with cryptographic randomness. Understand what it can withstand. Keep the whole process on this device.
No account · no backend · no secret storage
k7$wR2fT!qMv9pLz3Bd#
- Draw length
- 20 chars
- Character set
- 88 possible
- Upper bound
- ~129 bits
A fixed example for illustration. PasswordX does not create a secret until you open a tool.
The differenceComplexity is a shape.
Complexity is a shape.
Randomness is a method.
P@ssw0rd!2024Human pattern · Very weakk7$wR2fT!qMv9pLz3Bd#Random draw · FairOne private workspace
Choose your instrument.
Generation, diagnosis and explanation, together in your browser.
Create
- Generate a passwordLength, character types, look-alikes
- Build a passphraseWords drawn from the EFF list
- Stamp a PINWith the entropy its rules actually leave
- Draw a developer valueToken, hex, base64 or UUID
Inspect
- Measure a passwordHealth: measurements and observations
- Compare two secretsDifferences, without a winner
Learn
- Understand entropyWhat a design choice is worth
- Read how it worksRandomness, entropy, guessability
Local by design
Secrets are generated, measured and cleared in this tab.
How the measurements work