Text Obfuscator (Anti-Scraper)

How the Text Obfuscator works

This tool converts plain text — most commonly an email address — into a reversible obfuscated encoding so it is unreadable to naive scrapers and regex-based harvesters, while remaining perfectly recoverable by a human or a browser. It supports three encodings:

• HTML entity decimal codes — every character becomes a numeric character reference like @. Browsers render these back to normal text automatically when placed in HTML, so you can drop the output straight into a page's source and visitors see a normal, clickable address.
• JS Unicode escapes — every character becomes a \uXXXX escape sequence, the same format JavaScript string literals use. Useful when you need to reconstruct the text at runtime with a small script (e.g. JSON.parse("\"" + escaped + "\"")) instead of relying on HTML rendering.
• ROT13— rotates each Latin letter 13 places through the alphabet. It is not designed to defeat scrapers on its own (it's trivially reversible and well-known), but it is handy for lightly obscuring text in forum posts, spoilers, or puzzles. Applying ROT13 twice returns the original text.

This is different from the site's String Obfuscator tool, which performs irreversible homoglyph substitution (swapping letters for visually identical characters from other Unicode scripts) purely to defeat copy-paste text matching. The Text Obfuscator here is designed to be decoded again — either by a browser rendering HTML entities, by a small script reversing the escapes, or by running the same ROT13 operation a second time.

Note that none of these techniques stop a determined or JavaScript-capable scraper — they only raise the bar against the simplest regex-based email harvesters. For stronger protection, combine obfuscation with a contact form or a CAPTCHA-gated reveal.