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History for this tool
The most recent data you entered in this tool, stored only in this browser.
Save what you type here, in this browser? Your work would go into this browser's local storage, so a refresh or a trip to another tool does not wipe it. You also get a short list of previous entries under the form, each one restorable with a click. Nothing is ever uploaded, and there is no account.
Being straight about the trade-off: anything kept there can be read by anyone who can use this browser profile, and by any script that later runs on this site. A tool page can hold a private key, a password or a signed token. Saving is convenient; it is not private.
Saved on this device
Your inputs and history are stored locally.
Not saved
This page forgets your work when you leave it.
About this tool
Estimate how much work a password represents by measuring its entropy, assuming a specific number of guesses per second, and reporting how long a cracking rig would need. It is an estimate with stated assumptions rather than a verdict, which is the honest way to present this.Questions
- Why does my password score badly?
- It may be short or include one of the common words this tool checks. The estimate mostly uses length and character types; it cannot spot every predictable pattern. A high score is not a reason to reuse a password.
- Is my password sent anywhere?
- The tool computes its estimate in your browser. Still, the field displays your text openly. Use made-up examples, not a password from a real account.