I made a Chrome extension to reveal zero-width characters

In plain words

This Chrome extension reveals zero-width characters hidden in text. Zero-width characters are invisible characters that can be embedded in content for various purposes. The extension is useful for anyone who needs to identify or debug text containing these hidden characters, such as developers, security researchers, or content creators. It works directly in the browser to make invisible characters visible and identifiable.

written from the facts on this page · September 2026

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  I also created a Chrome Ext that reveals use of zero-width characters2018 · github.com · ▲17

  A Chrome extension to detect, highlight, and sanitize text with zero-width characters. - roymckenzie/detect-zero-width-characters-chrome-extension

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  I built a demo of two Unicode steganography techniques, zero-width characters and homoglyph substitution, in the context of AI misalignment. The first is about the use of two invisible zero-width characters (ZWS and ZWNJ) to binary encode text. The second is much cooler. Most characters in the Latin and Cyrillic alphabets look nearly identical, but have different unicode. If you have text to encode and convert it into binary representation (1s and 0s), you could take plain english "carrier" text and for each 1 in the binary representation you could substitute the Cyrillic letter equivalent.…

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