SRI Hash Generator

Paste JavaScript or CSS file contents and generate Subresource Integrity hashes plus script or link tags.

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Use this when you pin a CDN script or stylesheet and need the integrity attribute for the exact file bytes you are serving. The tool computes SHA-256, SHA-384 and SHA-512 values locally in the browser.

What to paste

Paste the final resource contents, not the URL response from a different build. Choose script or stylesheet to get a matching tag snippet.

Limit

The page does not fetch the resource URL. That is intentional so private files and unreleased bundles stay on your machine.