Password Strength & Crack-Time Estimator

Score a password and see how long an offline attacker would need.

Type a password to see entropy, character classes, common-pattern detection, and an estimated offline crack time at modern hash rates. Local-only.

Strength
Entropybits
Offline crack time1010 guesses/sec
Characters
Notes

Runs entirely in your browser — nothing you enter is sent to a server.

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What "crack time" means

We assume an offline attacker with a stolen hash and modern GPU rigs against fast hashes (SHA-256-ish). Crack times against bcrypt/argon2 are vastly longer — but you don't control how the verifier hashes, so plan for the worst.

Built by WeWorkWorldwide — a senior software team in Romania & Pakistan that ships deep technical work. Need this turned into something production-grade for your stack? Talk to our engineers →