Compute SHA-384 & SHA-512 hashes and generate tamper-proof CDN <script> tags.
Execution runs 100% locally inside the browser sandbox using HTML5 Canvas, Web Cryptography Subtle API, and Web Workers. Zero egress.
Zero network latency. Operates completely offline with zero dependencies on third-party backend servers or cloud services.
Built according to official RFC specifications, cryptographic test vectors, and enterprise-grade data transformation standards.
Paste your JavaScript or CSS source code.
Specify the public CDN URL for the asset.
Copy the generated HTML tag with integrity and crossorigin attributes.
SRI allows browsers to verify that resources fetched from CDNs have not been tampered with or malicious modified.
W3C recommends SHA-384 for modern production web deployments.
Zero-egress companion tools in the Security & Network suite
Measure cryptographic randomness, Shannon entropy (0-8 bits/byte), Chi-square test, and byte distributions.
Brute-force all 256 single-byte XOR keys with automated English frequency & chi-squared scoring.
Audit CSP, HSTS, X-Frame-Options, and security headers with OWASP grading (A+ to F).
Compare memory hardness, GPU ASIC resistance, and security parameters across KDF standards.
