SRI Hash Generator
Generate Subresource Integrity (SRI) integrity hashes for HTML script tags.
Subresource Integrity (SRI) Hash Generator
About SRI Hash Generator
The Subresource Integrity (SRI) Hash Generator creates W3C-compliant cryptographic integrity attributes (`integrity="sha384-..." crossorigin="anonymous"`) for `<script>` and `<link>` tags from CDN URLs or raw JavaScript/CSS file inputs.
How to Use SRI Hash Generator
Step 1
Upload a `.js` / `.css` file, paste raw code, or enter a CDN URL.
Step 2
Select your hash algorithm (SHA-384 recommended).
Step 3
Inspect the generated HTML `<script>` / `<link>` tag with the `integrity` attribute.
Step 4
Click "Copy HTML Tag" to embed into your website `<head>`.
Practical Use Cases for SRI Hash Generator
Third-Party CDN Security & XSS Protection
Prevent malicious code execution in user browsers if a third-party CDN (cdnjs, jsDelivr, unpkg) is compromised or hijacked.
PCI-DSS & SOC 2 Compliance for Frontend Assets
Enforce cryptographic hash validation for all external JavaScript libraries to meet enterprise cybersecurity compliance requirements.
Input & Output Examples
Generating SRI Hash for Tailwind CDN Script
Asset: https://cdn.jsdelivr.net/npm/chart.js, Hash Type: SHA-384
<script src="https://cdn.jsdelivr.net/npm/chart.js" integrity="sha384-abc123...==" crossorigin="anonymous"></script>
Key Features & Performance
- ✓Supports SHA-256, SHA-384 (W3C recommended), and SHA-512 cryptographic hashes.
- ✓Generates complete HTML tags: `<script>` and `<link rel="stylesheet">`.
- ✓Calculates hashes from direct file uploads, raw text content, or remote CDN URLs.
- ✓100% Client-Side hashing via native Web Crypto API.
- ✓1-Click Copy HTML tag and 1-Click Copy raw SRI hash.
Key Terminology & Definitions
Subresource Integrity (SRI)
A W3C security standard allowing browsers to verify that fetched external resources (like CDN scripts) have not been modified or tampered with.
crossorigin="anonymous"
The mandatory HTML attribute required when using SRI on cross-origin CDN assets to allow cryptographic hash verification without sending user credentials.