Security Tools Suite
Cryptographically secure tools for passwords, hashing, random string generation, and threshold secret sharing. Zero data transmission — 100% private in browser memory.
Strong Password Generator
Generate cryptographically secure random passwords with customizable length, symbols, numbers, and ambiguous character filtering.
Password Strength & Entropy Checker
Analyze password strength, calculate information entropy in bits, estimate crack time, and detect common patterns.
Cryptographic Hash Generator
Compute MD5, SHA-1, SHA-256, and SHA-512 cryptographic digests for text inputs simultaneously.
Hash Comparison & Verification
Compare input text or file checksums against expected hash values with instant match or mismatch feedback.
Random String & Token Generator
Generate cryptographically secure random alphanumeric strings, hex tokens, API keys, and custom character set strings.
Secure Random Number Generator
Generate cryptographically secure random integers and decimal numbers within custom Min and Max ranges.
Secure Dice Roller (D4-D100)
Roll CSPRNG-powered polyhedral dice (D4, D6, D8, D10, D12, D20, D100) for tabletop games and random sampling.
Secure UUID v4 Generator
Generate cryptographically secure Universally Unique Identifiers (UUID v4) conforming to RFC 4122.
Secret Sharing Demo (Shamir's Scheme)
Split a secret string into N key shares where any K (threshold) shares can reconstruct the original secret.
Frequently Asked Questions
Are generated passwords and keys sent to a server?
No! All generation and verification run 100% locally using your browser's native window.crypto CSPRNG engine.
Are these security tools free?
Yes, all 9 Security Tools are completely free with zero limits, tracking, or registration required.