About this utility
How to use Subresource Integrity Generator & Verifier
Generate SHA-256/384/512 integrity metadata for text assets or verify an expected SRI token.
What to provide
Paste the exact text bytes represented as UTF-8. Use the streaming file hash for arbitrary binary files.
- Paste, type, or drag and drop a supported text file into the input area.
- Choose the options that match your intended result.
- Select “Run tool” or press Ctrl/Command + Enter, then copy, download, or move the result back into the first input for another pass.
What the result means
Standards-compatible integrity tokens and optional verification status.
Privacy and safety
This utility is loaded as browser code and processes your input only in this tab. OmniCastConverter has no upload endpoint and never stores your content, filenames, tokens, or secrets. Generated markup and code are shown as inert text and are never executed.
Limitations
- Text is encoded as UTF-8; line-ending or build-output changes produce a different digest. SRI does not make untrusted code safe.
Try the included example
Select “Load example” at any time to restore this tested sample.
console.log("private and local");