Free Online Security & Privacy Tools
Empower your digital security with free client-side utilities. All calculations run strictly in your browser memory—zero data collection or server storage.
Password Strength Checker
Calculate password entropy and test resistance against 600,000 PBKDF2 iterations with GPU brute-force time estimates.
Cryptographic Password Generator
Generate high-entropy, cryptographically secure random passwords or passphrases with custom length and character sets.
Browser Privacy Score Inspector
Run an instant audit on your browser's fingerprinting risk, WebRTC leaks, DNT status, and active privacy protections.
Email Breach Checker
Check if your email or username has been compromised in known security data breaches using 100% k-Anonymity privacy model.
Why Use Locksy Free Tools?
100% Client-Side Execution
Calculations occur inside your browser via WebCrypto API. Zero data leaves your computer.
Zero Registration
No email required, no subscriptions, and no paywalls. Free for personal and commercial use.
Backed by Locksy Architecture
Built on the same zero-knowledge encryption principles powering the Locksy Tab Locker extension.
Protect Your Open Tabs with Locksy
Combine these free tools with automatic PBKDF2 tab encryption and WebAuthn biometric unlock.
Get for Chrome
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