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Hash Generator

🔒 In your browser

Generate SHA-1/256/384/512 hashes of text.

Computed in-browser via the Web Crypto API. (MD5 is intentionally omitted — insecure and unsupported by Web Crypto.)

About the Hash Generator

Cryptographic hashes turn any input into a fixed-length fingerprint, used for checksums, integrity checks and data identification. This free hash generator computes SHA-1, SHA-256, SHA-384 and SHA-512 digests of your text, right in your browser using the Web Crypto API.

Your input is never uploaded.

How to generate a hash

  • Type or paste your text.
  • Get SHA-1, SHA-256, SHA-384 and SHA-512 hashes instantly.
  • Copy any digest with one click for checksums or comparisons.

What hashes are used for

A hash turns any input into a fixed-length fingerprint. Common uses: verifying a file downloaded intact (compare checksums), indexing or de-duplicating data, and storing a non-reversible representation of a value. The same input always produces the same hash, and even a tiny change produces a completely different one — which is what makes hashes useful for integrity checks.

Frequently asked questions

What is a hash used for?

A hash is a fixed-length fingerprint of data, used to verify integrity (a file hasn't changed), index data, or store non-reversible representations of values.

Which hash algorithm should I use?

SHA-256 is the modern default for most integrity and security uses. SHA-1 is considered weak for security but is still seen in legacy checksums.

Is my text uploaded?

No. Hashes are computed locally in your browser with the Web Crypto API.

Which hash algorithm should I use?

SHA-256 is the modern default for integrity and general use. SHA-1 is still seen in older checksums but is considered weak for security. This tool computes SHA-1, SHA-256, SHA-384 and SHA-512.

Related searches

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🔗 Embed this tool on your website — free

Copy this and paste it into your page's HTML. The tool runs in the visitor's browser, just like here. Change height to fit, or add the optional auto-resize snippet below. Add ?theme=dark to the URL for dark mode.

<iframe src="https://toolhq.dev/embed/hash-generator/" title="Hash Generator — ToolsHub" width="100%" height="520" style="border:1px solid #e5e7eb;border-radius:12px;max-width:680px" loading="lazy"></iframe>
Optional: auto-resize the iframe height

Add this once on the same page so the iframe grows to fit the tool:

<script>
addEventListener("message", function (e) {
  if (e.data && e.data.type === "toolshub:resize") {
    document.querySelectorAll('iframe[src*="/embed/"]').forEach(function (f) {
      if (f.contentWindow === e.source) f.style.height = e.data.height + "px";
    });
  }
});
</script>