Hash Generator

Generate hashes from text or hexadecimal data. Includes SHA-2, SHA-3, MD5, RIPEMD-160, and HMAC generation and verification.

Built with Web Crypto API, noble-hashes.

Enter text or hexadecimal data, then choose an algorithm. HMAC also needs a key.

Hash text or hexadecimal data

Generate a digest, or use HMAC with a shared secret to generate and check an authentication code.

  1. Enter text, or enable hexadecimal input for bytes written as hex pairs.
  2. Choose an algorithm. HMAC options also require a secret key.
  3. Generate the result and copy the digest, or use the HMAC verification controls to compare an expected value.

SHA-256 of a small piece of text

Enter abc with no spaces or newline and select SHA-256. This is the expected hexadecimal digest; even a trailing newline changes it.

Input:
abc

SHA-256:
ba7816bf8f01cfea414140de5dae2223b00361a396177a9cb410ff61f20015ad

What to know before you start

Available algorithms include SHA-256, SHA-384, SHA-512, SHA3-224/256/384/512, SHA-1, MD5, and RIPEMD-160. HMAC supports SHA-256, SHA-512, and SHA-1.

MD5 and SHA-1 are legacy options with known security weaknesses. A plain hash is not encryption or a suitable password-storage scheme.

Inputs and HMAC keys are processed in your browser. The input here is text or hexadecimal data, rather than a file upload.