ZenovayTools

SRI Hash Generator

Generate Subresource Integrity (SRI) hashes for scripts and stylesheets. SHA-256, SHA-384, and SHA-512.

How to Use SRI Hash Generator

  1. 1Enter the URL of a script or stylesheet, or paste the file content directly.
  2. 2Select the hash algorithm: SHA-256, SHA-384, or SHA-512.
  3. 3Click "Generate" to compute the SRI hash.
  4. 4Copy the ready-to-use HTML tag with the integrity attribute.
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Frequently Asked Questions

What is SRI (Subresource Integrity)?▾
SRI is a security feature that allows browsers to verify that files they fetch (like scripts or stylesheets from CDNs) are delivered without unexpected manipulation. It uses cryptographic hashes to ensure integrity.
Which hash algorithm should I use?▾
SHA-384 is the most commonly used and recommended. SHA-256 is also widely supported. SHA-512 provides the strongest security but is less commonly used.
How do I use the generated hash?▾
Add the "integrity" attribute to your <script> or <link> tag along with crossorigin="anonymous". The tool generates the complete tag for you.
Is the content sent to a server?▾
No. If you paste content directly, it is hashed in your browser. If you enter a URL, the content is fetched client-side and hashed locally.
When should I use SRI?▾
Use SRI whenever you load scripts or stylesheets from third-party CDNs. If the CDN is compromised and serves a modified file, the browser will block it because the hash will not match.
Can I use this tool on my phone?▾
Yes, the SRI generator works in any modern mobile browser. Paste your script or stylesheet content and generate the integrity hash on any device.
Does the generated tag include the crossorigin attribute?▾
Yes. The tool generates complete HTML tags with both the integrity attribute and crossorigin="anonymous", which is required for SRI to work with cross-origin resources.