Zero Width Space
U+200B- Behavior
- Zero-width
- Use
- Adds a real Unicode character without creating visible horizontal width.
- Note
- Good for testing, but some fields trim or normalize it.
Invisible spacing behavior
Use this page to compare no-width separators with special spaces that create visible gaps. Zero-width characters do not create horizontal width.
Use marker previews to see whether a copied character creates visible space.
U+200BU+FEFFU+00A0U+2009U+2003An invisible space is a Unicode spacing character that may create no visible gap, a very small gap, or a blank-looking area. This page is for users who need spacing that is invisible or barely visible for formatting, captions, bios, layout testing, or Unicode compatibility checks.
For broader spacing guidance, compare this page with the blank space guide. If you need a character-level reference, see the invisible space character page.
Invisible spaces are handled differently by different apps. Some fields collapse repeated spaces, trim spaces at the beginning or end, normalize Unicode whitespace, or show unsupported characters as a square box. Platform support can change, so test the exact field before relying on a particular space.
Use invisible spaces for formatting, layout testing, captions, aesthetic bios, usernames, and compatibility checking. Always follow the rules of the app or platform where you paste them, and do not use invisible characters for spam, impersonation, harassment, evasion, or misleading behavior.