Security Tools
Password strength, hashing, checksums and crypto utilities
Free security utilities for strong passwords, hashing, and quick crypto checks. Prefer client-side tools when handling real secrets.
Passwords & passphrases
Generate and measure password strength and entropy.
Password Generator
Generate strong secure passwords
Secure Passphrase Generator
Generate diceware-style memorable secure passphrases
Password Strength Checker
Analyze password strength in real time
Password Entropy Calculator
Calculate password entropy bits and estimate crack time
Random String Generator
Generate random strings with custom rules
Hashes & checksums
SHA, HMAC, PBKDF2 and file integrity checks.
SHA-256 Checker
Generate and verify SHA-256 hashes, or sign/verify with HMAC-SHA-256
SHA-1 Checker
Generate and verify SHA-1 hashes from text or files
SHA-512 Checker
Generate and verify SHA-512 hashes from text or files
HMAC Generator
Generate HMAC SHA1/SHA256 hashes
PBKDF2 Generator
Derive and verify keys using PBKDF2 in the browser
File Checksum Generator
MD5, SHA1, SHA256, SHA512 for uploaded files
Keys, JWT & encoding
RSA keys, JWT helpers, UUID checks and URL encoding.
Frequently asked questions
The generator runs in your browser. Use a password manager to store results; do not reuse passwords across sites.
Prefer local tools for highly sensitive secrets. These pages are built for convenience checks and learning workflows.
Yes. Use File Checksum Generator or the SHA checkers with your file or text input.