# Password Strength Checker

> Paste any password and see how strong it really is. Entropy, estimated crack time, and specific suggestions. Never leaves your browser.

Author: Nimoy Burrowes (https://nimoyburrowes.com/about)
Category: Security tools
Canonical: https://nimoyburrowes.com/tools/password-strength-checker

## What it does

Free client-side password strength checker powered by zxcvbn. Enter any password and see a strength score, estimated crack time against an offline slow-hash attack, entropy in bits, and specific suggestions for improving it. All analysis runs in the visitor's browser; nothing typed is sent, stored, or logged.

## Search intents this tool serves

- password strength checker
- password entropy calculator
- how strong is my password
- zxcvbn online
- password crack time

## Privacy

Every action runs entirely in the visitor's browser. No input or output is sent to a server, stored, or logged. See the full HTML page for the tool's live interface and full FAQ.

Full page: https://nimoyburrowes.com/tools/password-strength-checker