Zero-Width Characters
Copy zero-width Unicode characters, generate invisible text, and detect hidden characters in any text.
Invisible Text Generator
Generate invisible text by encoding a message into zero-width characters. The resulting text appears completely empty but contains your hidden message.
Zero-Width Character Detector
Paste text to reveal and identify any hidden zero-width characters.
Understanding Zero-Width Characters
Zero-width characters are Unicode characters that occupy no visible space in rendered text. Despite being invisible, they serve important roles in text processing, typography, and internationalisation. They influence how text wraps, how characters join together, and how words are segmented.
The zero-width space (ZWSP) is the most commonly used — it provides a word break opportunity without adding visible whitespace. Web developers use it to allow long URLs or unbroken strings to wrap naturally. The zero-width joiner (ZWJ) gained widespread recognition through emoji, where it combines individual emoji into composite sequences like family groups and skin tone variations.
For copying general invisible characters for blank messages and empty usernames, see our Invisible Character page. For more Unicode tools, try the Unicode Lookup or Homoglyph Generator.