Invisible Space — Copy & Paste Invisible Spaces

Invisible spacing behavior

Test zero-width and 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.

Recommended:Use Zero Width Space for invisible spacing tests; use No-Break Space when visible spacing is required.

Best choices

Choose a character or preset to copy and test.

Invisible spacing check

Selected: NoneCode point: Not copiedUnits: 0Width: Not tested

Use marker previews to see whether a copied character creates visible space.

Zero Width No-Break Space

U+FEFF
Special format character
AB
Behavior
Zero-width
Use
Useful for compatibility testing, not a first-choice blank message character.
Note
Also known as BOM in some contexts; apps may remove it.

No-Break Space

U+00A0
A B
Behavior
Visible spacing
Use
Creates a space that keeps neighboring text together in many contexts.
Note
May be converted to a normal space by some apps.

Thin Space

U+2009
A B
Behavior
Visible spacing
Use
Adds a narrow typographic gap for layout and formatting tests.
Note
Support varies by font and app.

Em Space

U+2003
A B
Behavior
Visible spacing
Use
Creates a larger blank gap for layout checks.
Note
Some apps collapse repeated wide spaces.

Test Box

Characters: 0

What Is an Invisible Space?

An 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.

Best Space for This Use Case

  • Zero Width Space (U+200B): Best when you need a separator that usually has no visible width.
  • No-Break Space (U+00A0): Useful when you want a normal-width space that should stay with nearby text.
  • Thin Space or Hair Space: Useful for subtle layout or number-spacing tests.
  • Em Space or En Space: Better when you need a visible blank gap.

How to Copy and Test an Invisible Space

  • ✦ Choose a space character from the grid above.
  • ✦ Click Copy on that character card.
  • ✦ Paste it into the Test Box to confirm that a character was copied.
  • ✦ Paste it into your target app and check whether the spacing is preserved.
  • ✦ If the app changes or removes it, try a different width or use regular visible spacing.

Compatibility Notes

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.

Troubleshooting Invisible Space

  • ✦ If nothing appears to happen, paste into the Test Box and check whether the count changes.
  • ✦ If spacing collapses, the app may be converting multiple spaces into one.
  • ✦ If the character disappears after saving, the field may trim or normalize whitespace.
  • ✦ If you see a box, choose a more common spacing character such as No-Break Space or Thin Space.

Responsible Use

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.

FAQ

What is an invisible space used for?
Invisible spaces are useful for formatting, captions, bios, usernames, layout testing, and checking how an app handles Unicode spacing.
Which invisible space should I try first?
Start with Zero Width Space when you need no visible width. Try No-Break Space, Thin Space, or Em Space when you need a visible blank gap.
Why did my invisible space disappear?
Some apps trim, collapse, normalize, or remove Unicode spacing. Test the exact field because support can change.
Is invisible space different from blank space?
Invisible space usually emphasizes zero-width or barely visible spacing. Blank space is broader and can include normal-width or wide Unicode spaces.
How should I use invisible spaces responsibly?
Use them for formatting and compatibility checking, follow platform rules, and avoid spam, impersonation, harassment, evasion, or misleading behavior.