Your files stay on your device
Subresource integrity hash
Hash a script or style into an integrity= attribute from text or a file, sha256/384/512, and inspect an existing attribute. The hash is computed locally; the file never uploads.
Used only to build the ready-to-paste tag.
<script src=… integrity=…>, its src fills the URL field above.
- It cannot fetch the URL to verify the served bytes still match. Paste the actual file, or hash the served script yourself.
- integrity on same-origin files is pointless (you already control them); it protects third-party CDNs.
- crossorigin=anonymous is usually needed alongside integrity for CORS-fetched subresources.
Paste, drop, or type to begin. Everything stays on this device.