What is Zero-width space?

A zero-width space (U+200B) is an invisible Unicode character that marks a permitted line-break point without occupying width. Because it is invisible, it also turns up in text intended to defeat copy detection.

3 tools that work with Zero-width space

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Text Tools1

Text CleanerStrip smart quotes, invisible characters, ligatures and stray whitespace pasted from Word or a PDF.

Samples & Mock Data1

Edge Case Test String GeneratorGenerate the strings that break input handling — Unicode, RTL, emoji, injection patterns and boundary lengths.

AI & LLM Tools1

Invisible Character DetectorFind zero-width spaces, directional overrides, Unicode tag characters and homoglyphs hidden in pasted text — then strip them.

Related terms

Terms that appear alongside Zero-width space on the same tools.

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