Hash Generator

What is Hash Generator?

A hash generator that produces MD5, SHA-1, SHA-256, SHA-384, and SHA-512 digests for any text, useful for verifying that a file arrived intact or comparing a value against a published checksum. It uses the native Web Crypto API, so the input never leaves your machine.

How to use Hash Generator

1. 1Enter the text you want to digest.
2. 2Read the hexadecimal result for each algorithm, and copy any single row on its own.
3. 3Compare it character by character with the digest you were given; case does not affect the comparison.
4. 4For a keyed signature rather than a plain digest, use the HMAC tool instead.

How do I do this in code?

Use the tool above for one-off work; for anything you repeat, move it into a script or your project.

const sha256 = async (text) => {
  const buf = await crypto.subtle.digest(
    'SHA-256',
    new TextEncoder().encode(text),
  );
  return [...new Uint8Array(buf)]
    .map((b) => b.toString(16).padStart(2, '0'))
    .join('');
};

Common errors and how to fix them

Frequently asked questions