Free Tool

Password Strength Checker

Test how strong your password is against common attack methods. Real-time analysis with entropy scoring, crack-time estimates, and improvement suggestions.

Your password never leaves your browser. All analysis runs locally in JavaScript — nothing is sent to any server.

Enter a Password

Start typing to see real-time strength analysis

100% Client-Side

This tool runs entirely in your browser. Your password is never transmitted, stored, or logged. You can verify this by disconnecting from the internet — the tool will still work.

Password Policy Recommendations (NCSC Guidelines)

RecommendationDetailsWhy It Matters
Minimum LengthAt least 12 charactersLength is the single biggest factor in password strength
No Complexity RulesDon’t force symbols/numbersForced complexity leads to predictable patterns like P@ssw0rd
Use PassphrasesThree or more random wordsEasier to remember, harder to crack than short complex passwords
Check Against BreachesBlock known compromised passwordsMillions of passwords are publicly available from data breaches
Multi-Factor AuthenticationEnable MFA on all accountsEven a strong password isn’t enough if credentials are phished
Password ManagerUse one for all accountsAllows unique, long passwords without memorisation burden
No Forced RotationOnly change if compromisedRegular rotation encourages weak, incremental password changes
Account LockoutThrottle after failed attemptsPrevents online brute-force attacks against login pages

Based on the UK National Cyber Security Centre (NCSC) password guidance. Contact Cloudswitched for help implementing password policies and MFA across your organisation.

More Free Tools

Try our other free security assessments and IT planning tools.

Technology Stack

Powered by industry-leading technologies including SolarWinds, Cloudflare, BitDefender, AWS, Microsoft Azure, and Cisco Meraki to deliver secure, scalable, and reliable IT solutions.

SolarWinds
Cloudflare
BitDefender
AWS
Hono
Opus
Office 365
Microsoft
Cisco Meraki
Microsoft Azure

Latest Articles

24
  • Network Admin

How to Segment Your Network for Better Security

24 Nov, 2025

Read more
6
  • Cloud Email

The Business Guide to Microsoft Power Automate

6 Nov, 2025

Read more
25
  • Virtual CIO

The Role of IT in Business Continuity Planning

25 Nov, 2025

Read more

Enquiry Received!

Thank you for getting in touch. A member of our team will review your enquiry and get back to you within 24 hours.