Client-Side Cybersecurity Utilities
Every tool below is engineered with a strict zero-knowledge architecture. All cryptographic random generation and string evaluations occur strictly in local browser memory.
Password Strength Checker
Calculate Shannon entropy in bits, test against known breached password lists, identify dangerous keyboard patterns, and evaluate estimated brute-force crack times across 4 real-world attacker hardware tiers.
- Shannon entropy calculation in bits
- Breached credential dictionary scanning
- Online throttled vs unthrottled API metrics
- Offline GPU cluster (100 Billion/sec) simulation
- Sequential and repeated pattern detection
Random Password Generator
Generate cryptographically secure passwords powered by the browser's Web Cryptography API (crypto.getRandomValues). Includes customizable character sets, ambiguous character exclusions, and bulk generator mode.
- Cryptographically secure randomness
- Lengths from 6 to 64 characters
- Exclude ambiguous characters (0, O, 1, l)
- Guaranteed character diversity guarantee
- Bulk mode: generate & export up to 20 at once
Diceware Passphrase Generator
Create mathematically strong, human-memorable multi-word passphrases inspired by EFF Diceware and the famous XKCD #936 principle. Custom word counts, delimiters, capitalization modes, and phonetic audio playback.
- Curated clean English dictionary (1,200+ words)
- Configurable 3 to 8 word combinations
- Custom delimiters (hyphens, dots, spaces)
- TitleCase, lowercase, or UPPERCASE formatting
- Audio pronunciation helper