Security Tools
4 free security tools, all running privately in your browser.
These free security tools let you generate and test strong passwords, create passphrases, compute hashes, and generate HMAC signatures - all locally in your browser. Nothing security-sensitive is ever transmitted, so you can use them safely for real credentials.
Security tools are only trustworthy if they run where you can verify nothing leaves your device. These do exactly that, using your browser's built-in cryptographic APIs. Our guides explain what makes a password strong, why fast hashes shouldn't store passwords, and how MD5 differs from SHA-256.
Hash Generator
Generate SHA-1, SHA-256, and SHA-512 hashes.
Password Strength Checker
Test how strong a password is.
Passphrase Generator
Generate memorable word-based passphrases.
HMAC Generator
Generate HMAC signatures with SHA-256/512.
Frequently asked questions
Can I trust these tools with real passwords?
Yes. Everything runs locally in your browser using the standard Web Crypto API - no password, hash input, or key is ever sent to a server or logged.