Free SRI Hash Generator (Subresource Integrity)

Generate a Subresource Integrity hash for any script or stylesheet · paste the content or upload the file · so a compromised CDN can't tamper with it.

Frequently asked

What is Subresource Integrity?

SRI is a browser feature: you add an integrity="sha384-…" attribute to a <script> or <link> tag, and the browser refuses to run the resource if its hash doesn't match · protecting you if the CDN or third-party host is compromised.

Which hash algorithm should I use?

The generator produces sha256, sha384, and sha512 attributes. sha384 is the common recommendation. Copy the full integrity attribute and add crossorigin="anonymous" to the tag.

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