Test Your Password Manager Master Password
Verify your password manager master password is truly strong — it protects all your other passwords.
Your password is never sent to any server.
Password Manager tips
Your master password protects every other password you own. It must be Strong (score 4) with well over 60 bits of entropy shown here.
A passphrase of 5–6 random words (e.g., "purple-lantern-orbit-cheese-knife") scores Strong, has 70+ bits of entropy, and is easy to remember.
Since you won't store the master password in the manager itself, it needs to be memorable. Passphrases win here — length beats complexity for memorability.
Your master password is never sent anywhere — all analysis runs locally in your browser. You can verify this with your browser's network inspector.
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