Subresource Integrity (SRI) Hash Generator

Generate W3C Subresource Integrity (SRI) string attributes (sha384-, sha256-, sha512-) for HTML script and link tags.

How It Works & Processing Standards

Generate W3C Subresource Integrity (SRI) string attributes (sha384-, sha256-, sha512-) for HTML script and link tags.

Your input data is never sent to any server and is securely processed on your device.

Current Limits

  • Maximum input length: 2,000,000 characters

Subresource Integrity (SRI) Hash Generator is a 100% free, browser-based online utility. All calculations and file conversions run locally inside your browser (Local-First) without sending data to remote servers, keeping your documents and inputs strictly private.

How to Use Subresource Integrity (SRI) Hash Generator

  1. 1
    Paste File ContentPaste the JavaScript or CSS file contents into the input field.
  2. 2
    Choose AlgorithmSelect sha384 (recommended by W3C), sha256, or sha512.
  3. 3
    Copy SRI StringCopy the formatted string (e.g. sha384-...) into your <script> or <link> tag.

Common Use Cases

  • Securing external CDN scripts in HTML headers and complying with web security auditing standards
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