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Hash Generator

Compute SHA-1 / SHA-256 / SHA-384 / SHA-512 hashes of text using the browser's Web Crypto API. Nothing is sent to a server.

Hashes are used for detecting file tampering (verifying integrity of a download), generating API request signatures, and simple duplicate detection. The same input always produces the same hash.

# Use Cases

  • Verifying a downloaded file's checksum against the hash published by its source
  • Sanity-checking how an API request signature (e.g. an HMAC input) would be computed
  • Quickly comparing two pieces of text for an exact match

# Usage

  1. Paste the text you want to hash into the box.
  2. Click "Compute hash" to see all four algorithms (SHA-1/256/384/512) at once.
  3. Pick the algorithm strength appropriate to your use case (SHA-256 or higher is generally recommended).

# FAQ

Does this support MD5?
No. MD5 has known collision weaknesses and isn't supported by the browser's Web Crypto API, so it's intentionally omitted. Use SHA-256 or higher for integrity checks.
Can I use this to store passwords?
No. Password storage needs a dedicated algorithm with salting and stretching, like bcrypt, scrypt, or Argon2. The SHA hashes here are meant for things like file integrity checks.

# Related

Password GeneratorJWT Decoder

# Learn more on our sister sites

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