Browser-Only Password Checker — Nothing Leaves Your Device

Password Strength Tester

Test password complexity, estimated crack time, and known breach exposure with a 100 percent local browser tool. Your passwords are never sent to LayerLogix servers, never logged, and never stored. Free for Houston businesses and their employees.

Get Identity & Access Help 888.792.8080

SOC 2 Compliant

24/7 Support

30+ Years Experience

100% Browser-Only — Nothing is sent to our servers

Test Your Password

Type a password to see its strength, estimated crack time, and issues in real time.

StrengthEnter a password

Built with local entropy calculation. No network requests. No logging. No storage.

What We Offer

Comprehensive solutions tailored for Houston-area businesses

Browser-Only Local Analysis

Every check runs entirely in your own browser using JavaScript. Your password is never sent to LayerLogix servers, never logged, and never stored anywhere. Even our analytics cannot see what you type.

Estimated Crack Time Calculation

Using the zxcvbn library and modern GPU hash rates, we estimate how long it would take an attacker to crack your password offline. Results range from "instantly" for weak passwords to "centuries" for strong passphrases.

Pattern and Dictionary Detection

Common patterns like "Houston2025!" or "Welcome1" look complex to humans but are trivially cracked. Our analysis detects dictionary words, keyboard walks, dates, leetspeak substitutions, and common patterns attackers test first.

Known Breach Exposure Check

Optionally check if your password appears in known data breach corpuses using the k-anonymity protocol from Have I Been Pwned. Only the first 5 characters of a SHA-1 hash leave your browser, never the password itself.

NIST 800-63B Compliance Scoring

Modern password guidance from NIST 800-63B emphasizes length over complexity. We score your password against current best practices, flagging passwords that meet old "complexity" rules but fail modern length requirements.

Passphrase Recommendation

When a password fails our checks, we suggest passphrase strategies that are both stronger and easier to remember. Long random passphrases beat short complex passwords every time, and we show you how to build them.

Why Choose LayerLogix?

Serving businesses throughout the Greater Houston area including Houston, The Woodlands, Spring, Katy, Sugar Land, Conroe, Pearland, Dallas, Austin.

100% Free, No Credit Card Required

The password strength tester is completely free with no signup or payment information needed. We provide a safe, educational resource because better passwords protect everyone.

Zero Data Leaves Your Browser

Unlike many online password testers, ours is built so your actual password never touches our servers. The entire analysis runs locally in JavaScript. We genuinely cannot see what you type even if we wanted to.

Educational for Employees

Use the tester in security awareness training sessions. Watching a "strong looking" password get rated as crackable in 6 seconds is the most effective password education most employees ever receive.

Foundation for Stronger Identity Security

Testing one password is useful, but real security requires password managers, multi-factor authentication, and conditional access. The tester is a starting point for the broader identity security discussion.

No Sales Pressure, No Email Capture

You do not need to submit an email address or contact form to use the tool. We do not require anything in exchange because your security matters more than our lead funnel.

Our Process

Visit the LayerLogix contact page and request access to the password strength tester resource

Receive the secure tester link and load it in any modern browser (Chrome, Edge, Firefox, Safari)

Confirm your browser shows a green padlock and that the page is served over HTTPS

Type a password you want to test into the input field — never paste a real production password from your password manager

Watch the live analysis update as you type, showing complexity score, estimated crack time, and pattern warnings

Optionally enable the breach check to see if a similar password has appeared in known data breaches

Review the recommendations, especially the passphrase strategies for building stronger memorable passwords

Share the tool link with your team for password awareness training, and consider engaging LayerLogix for full identity hardening

Frequently Asked Questions

Is this really free? What is the catch?▼

Yes, the password strength tester is completely free with no credit card, no signup, and no email required to use the basic check. We offer it as a public service because better passwords reduce real-world breach impact for everyone, including our clients. There is no catch.

What data do you collect when I use the tester?▼

For the local strength check, we collect zero data — nothing leaves your browser. If you opt into the breach exposure check, we send only the first 5 characters of a SHA-1 hash of your password (k-anonymity protocol) which mathematically cannot be reversed to identify your password. We do not log IP addresses against tested passwords, do not run analytics on the input field, and do not retain anything.

Should I test my real passwords?▼

You can technically test any password safely because nothing leaves your browser, but security best practice is to never type real production passwords into any third-party tool — including ours. Test variations of patterns you commonly use, or test sample passwords to evaluate the tool itself. Use a password manager to generate and store actual passwords.

Can a password tester replace real identity security?▼

No. Strong passwords are the bare minimum, not the full solution. Real identity security requires multi-factor authentication, password managers, conditional access policies, privileged access management, and dark web monitoring. The tester teaches awareness — LayerLogix offers full identity hardening as a managed service.

How accurate is the crack time estimate?▼

The crack time estimate uses the zxcvbn algorithm developed by Dropbox and assumes an attacker has offline access to a password hash and a modern GPU cracking rig (roughly 10 billion guesses per second for fast hashes like NTLM). Real attacker capabilities vary, but the estimates are widely accepted as the most realistic available and are used by major password managers including 1Password and Dropbox.

What is the difference between password complexity and password length?▼

Old guidance focused on complexity (uppercase, lowercase, numbers, symbols), but modern research shows length matters far more. A 4-word random passphrase like "correct-horse-battery-staple" is dramatically stronger than "P@ssw0rd123!" despite looking simpler. NIST 800-63B (2017 and later) emphasizes length, eliminates mandatory complexity, and discourages periodic password rotation.

Ready to Get Started?

Contact LayerLogix today for a free consultation. We serve businesses throughout Houston, The Woodlands, Spring, and the surrounding Greater Houston area.

Schedule Free Consultation Call 888.792.8080