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Security
Hash Generator
MD5, SHA-1, SHA-256, SHA-384 and SHA-512 hashes and HMACs for text or files, with a verify check.
Input
11 bytes · UTF-8
Options
Hashes
- MD5128-bitnot collision-safe
— - SHA-1160-bitnot collision-safe
— - SHA-256256-bit
— - SHA-384384-bit
— - SHA-512512-bit
—
Computed locally with Web Crypto (MD5 in pure JS).
Choosing an algorithm
- SHA-256 is the safe default for checksums, integrity checks and signatures.
- MD5 and SHA-1 are broken for collision resistance — fine for legacy checksums, never for security.
- Don't store passwords with plain hashes. Use a slow password hash such as Argon2, bcrypt or scrypt.
- HMAC proves a message came from someone holding the secret key (e.g. webhook signatures).