SRI Maker

Generate Subresource Integrity for your JS/CSS — from URL, file, or pasted code.

sha256 sha384 sha512 URL • File • Paste Copy & Embed

1) Choose your source

From URL
Upload File
Paste Code

Note: Browser security (CORS) may block fetching some third-party URLs. If that happens, download the file and use Upload File, or paste the file’s exact contents.

Choose a file… or drag & drop No file selected

Source code

Algorithms sha256 sha384 sha512

Embed Helper (optional)

Provide the public URL where this exact content is hosted to build a ready-to-paste tag.

2 Results

Algorithm	Base64 Digest	Integrity String	Actions

Combined Integrity (SRI supports multiple algorithms)

Embed Snippet

Heads up

SRI must match the exact bytes the browser downloads. If your server/CDN minifies, compresses, or rewrites content, the hash can change. Always compute the hash from the final, publicly served file.