Password & Security Tools
Security focused tools including password generation and verification
Tools in This Collection
URL Encoder/Decoder
Safely encode and decode URLs for web transmission. Convert special characters to URL-safe format and back again.
Substitution Cipher Solver
Crack simple substitution ciphers automatically with frequency analysis and deterministic hill climbing, then refine the letter mapping by hand with per-letter lock-in. Fully offline.
Password Generator
Generate strong, secure passwords instantly with customizable length and character types. Create passwords up to 128 characters long.
Base64 Encoder/Decoder
Encode text to Base64 or decode Base64 to text. Secure encoding with support for UTF-8 characters.
Hash Generator
Generate cryptographic hashes instantly (SHA-1, SHA-256, SHA-384, SHA-512)
Password Strength Checker
Analyze your password strength and receive security improvement suggestions
Diceware Passphrase Generator
Generate memorable, high-entropy passphrases from the EFF 7,776-word list using crypto-secure randomness or your own physical dice rolls, with entropy and crack-time estimates.
Prompt Injection Scanner
Scan pasted prompts and documents for prompt injection patterns — instruction overrides, role hijacks, jailbreak modes, system-prompt exfiltration, fake chat delimiters and invisible Unicode — with offline heuristics and per-match highlighting. Runs entirely in your browser.
Why This Collection
We curated this collection by combining the best tools for productivity to match your needs.
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Last updated: October 29, 2026