Password Strength Analyzer
Comprehensive security analysis for user credentials.
Evaluate password complexity using advanced entropy calculations and pattern recognition. This module identifies common passwords, estimates crack time, and provides actionable security suggestions.
How it works
Three steps. No complex setup.
Input Reception
The module receives the plain-text password string through a secure POST request to the TRPC endpoint.
Complexity Analysis
Our engine calculates Shannon entropy and checks for character diversity, including uppercase, lowercase, digits, and symbols.
Pattern & Dictionary Check
The password is cross-referenced against common patterns (sequences, repetitions) and a database of leaked or common passwords.
Who is it for?
Response example
Real input and output. What you send and what you get back.
// Input
{
"password": "MyS3cur3P@ss!"
}// Output
{
"score": 4,
"score_label": "very_strong",
"entropy_bits": 78.4,
"length": 13,
"has_uppercase": true,
"has_lowercase": true,
"has_digits": true,
"has_symbols": true,
"has_common_pattern": false,
"is_common_password": false,
"crack_time_estimate": "decades",
"suggestions": [],
"warnings": []
}Try it now
// live demo — no account needed to try
Playground
Integrate into your project
Copy and paste. Replace YOUR_API_KEY with your real key.
curl -X POST https://jsnhengine.com/api/trpc/passwordStrength.check \
-H "Content-Type: application/json" \
-H "Authorization: Bearer YOUR_API_KEY" \
-d '{"json": {"password":"MyS3cur3P@ss!"}}'Why choose JSNH Engine Lab
Low latency
Responses in under 200ms
Secure authentication
API keys with per-plan rate limiting
Usage tracking
Every request logged with metrics
Production ready
Input validation and typed errors
Frequently asked questions
Everything you need to know before integrating.
Other modules
Expand your integration with more APIs from the catalogue.
Email Validator API
Validate email addresses instantly. Detect fake, disposable and invalid emails.
1 token / call →
Phone Validator API
Validate phone numbers from any country. Detect carrier, line type and E.164 format.
1 token / call →
URL Checker API
Verify URL accessibility, detect redirects, and extract SEO metadata instantly.
2 tokens / call →
// production ready
Start using Password Strength Analyzer
Sign up free and get 1,000 tokens to start. No credit card. No complex setup.