Security Tools
12 Utilities AvailableFree security utilities — password strength checker, hash generator, JWT decoder, breach lookup, CSP header generator.
ZeroDayCops Password Strength Checker
Evaluate password strength with entropy calculations and dictionary checks.
ZeroDayCops Hash Generator
Compute MD5, SHA-1, SHA-256, and SHA-512 cryptographic hashes for text.
ZeroDayCops JWT Token Decoder
Decode JSON Web Tokens (JWT) payload claims locally.
Secure Password Generator
Generate cryptographically secure passwords client-side.
SSL/TLS Certificate Checker
Verify certificate status, supported protocol versions, and cipher suites.
Security Headers Analyzer
Analyze response headers for HSTS, CSP, and cross-site scripting guards.
HMAC Signature Generator
Compute keyed-hash message authentication codes (HMAC) client-side.
File Hash Verifier
Calculate and verify cryptographic hashes of local files.
SSL Certificate Decoder
Decode PEM-encoded X.509 certificates to examine details.
CORS Configuration Tester
Check remote API endpoints for cross-origin resource sharing risks.
Content Security Policy Generator
Build robust, secure Content Security Policy (CSP) headers.
Personal Breach Auditor
Verify if your email accounts have been compromised in data leaks.