# Password Strength

Use 4 online password strength tools to assess password strength in your browser. Text inputs are not stored, and uploaded files are deleted after 6 hours.

> Canonical page: https://elysiatools.com/en/tags/password-strength

## Overview

Password Strength tools help you evaluate password strength through a browser-based interface. Browse 4 tools for working with password strength checks without installing software.

## Frequently asked questions

### What can I do with Password Strength tools?

You can use the tools to assess password strength through the browser interface and choose from 4 related utilities.

### How is my password data handled?

Processing runs on Elysia Tools servers. Text inputs are not stored, and uploaded files are automatically deleted after 6 hours.

### Do I need to install software?

No. You can access these Password Strength tools through your web browser without installing software.

## Tools

- [Entropy Calculator](https://elysiatools.com/en/tools/entropy-calculator): Measure the randomness of any data — Shannon entropy (bits/symbol), Min-Entropy (worst-case guess work), alphabet size, duplicate rate, and an average brute-force cracking time at a chosen hash rate. Rates data as Strong (≥128-bit min-entropy), Medium (64-127), or Weak (<64).
- [Password Strength Meter](https://elysiatools.com/en/tools/password-strength-meter): Estimate real password strength with Shannon entropy, zxcvbn pattern matching (l33t, dictionary, sequences, repeats) and brute-force crack-time across attack scenarios (offline fast/slow hash, online). The password is evaluated locally and never sent anywhere.
- [Password Validator](https://elysiatools.com/en/tools/password-validator): Validate password strength and check against common security requirements
- [Strong Password Validator](https://elysiatools.com/en/tools/strong-password-validator): Validate password strength against common security requirements (uppercase, lowercase, numbers, special chars, length)

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