CSP Hash Helper

1) Paste the exact inline contents

Hashing is byte-exact. If the browser sees different whitespace/newlines, the hash won’t match.

Type script style Hash algorithm SHA-256 SHA-384 SHA-512 Inline content CSP token Paste-ready directive snippet

Example output: 'sha256-Base64Here...' then add to script-src or style-src.

Gotchas (why hashes “don’t work”)

• Hash the inline contents only (not the <script> / <style> tags).
• Line endings matter: \r\n vs \n will produce a different token.
• Minifiers/template engines that change whitespace after you hash will break it.
• If you use nonces, you usually don’t need hashes (and vice versa).

No uploads; everything computed in your browser via WebCrypto.