Privacy & Security
All hash generation is performed locally in your browser using the Web Crypto API. Your data never leaves your device.
Enter the URL of a JavaScript or CSS file hosted on a CDN or external server.
Options
Need Help Securing Your Web Applications?
Our security team can help implement SRI, CSP, and other web security controls to protect your applications.
Frequently Asked Questions
Common questions about the SRI Hash Generator
Subresource Integrity is a W3C security feature that lets browsers verify files fetched from CDNs or external sources. By including a cryptographic hash in your script/link tags, browsers can detect if the file was modified and refuse to execute compromised code. SRI protects against CDN compromises, man-in-the-middle attacks, and supply chain attacks.
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⚠️ Security Notice
This tool is provided for educational and authorized security testing purposes only. Always ensure you have proper authorization before testing any systems or networks you do not own. Unauthorized access or security testing may be illegal in your jurisdiction. All processing happens client-side in your browser - no data is sent to our servers.