Online Security Utility
Password Strength Checker
Audit password strength with entropy and crack-time estimates — nothing is uploaded.
Tool Options
Result
Results will appear here…
How It Works
Private security utilities powered by Web Crypto in your browser.
Paste or upload
Enter text or drop a file. Everything processes locally with Web Crypto.
Process privately
Hashes, passwords and QR codes run in your browser — nothing is uploaded.
Copy or download
Export TXT, JSON or images instantly.
About Password Strength Checker
Full password audit: strength meter, entropy, character diversity, dictionary/pattern risk, estimated crack time and fix suggestions — private, client-side only. Built for developers, students and security practitioners who need private, offline-capable browser tools.
FAQs
No. All security tools process data in your browser using Web Crypto and local libraries. FreeConverter servers never receive your input.
No. Passwords and hashes never leave your device and are not saved on our servers.
Yes. FreeConverter.app browser security tools are free to use.