Obfuscate email addresses and text into HTML decimal & hex entities to defeat spam scrapers.
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.
Type email address (e.g. contact@example.com).
Review HTML decimal, hex, and JavaScript representations.
Paste directly into public HTML contact pages.
Simple web scrapers looking for plaintext mailto: or @ symbols fail to detect encoded HTML numeric character entities.
Yes, web browsers automatically render e as the letter 'e' seamlessly.
Zero-egress companion tools in the Text Utilities suite
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