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Hash Generator

Generate cryptographic hash values from text using MD5, SHA-1, SHA-256, SHA-384, and SHA-512. All client-side.

Enter text above to generate MD5, SHA-1, SHA-256, SHA-384, and SHA-512 hashes.

About these algorithms

  • MD5: Fast but cryptographically broken. Use only for checksums, not security.
  • SHA-1: Deprecated for security. Still seen in legacy systems and Git commit hashes.
  • SHA-256: The standard choice for most security applications. Used in Bitcoin and TLS.
  • SHA-384: Truncated version of SHA-512. Used in some TLS configurations.
  • SHA-512: Strongest option here. Better performance than SHA-256 on 64-bit systems.

Common use cases

  • Verifying file integrity (compare hash before and after transfer)
  • Generating unique identifiers from text
  • Password hashing verification (compare against known hashes)
  • Data deduplication checks

Salt & HMAC

Click the Salt / HMAC button to expand advanced options. Three modes are available:

  • salt + text: Prepends the salt to your input before hashing. Common in simple password storage schemes. Example: hash("mysalt" + "password")
  • text + salt: Appends the salt after your input. Used in some legacy systems.
  • HMAC: Uses the standard HMAC construction (RFC 2104) with your salt as the key. This is the cryptographically correct way to combine a secret key with a message. Supported for SHA-1 through SHA-512 via the Web Crypto API.

Privacy

SHA hashes are computed using your browser's built-in Web Crypto API. MD5 uses a lightweight JavaScript implementation. Nothing is sent to any server.