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

Cleared. 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 produce no visible gap, a very small gap, or a blank-looking area depending on which code point you use and how the target app renders it. This page focuses on spacing behavior: what actually happens when you paste a space into a field — whether it is preserved, collapsed, made zero-width, or causes unexpected line-wrapping.

Why This Page Exists Separately

  • ✦ This page: behavior-focused — what happens to a space after you paste it (preserved, collapsed, wrapped, stripped).
  • ✦ /invisible-space-character/: technical taxonomy — the complete list of every space code point, its width, and normalization behavior.
  • ✦ /blank-space/: selection guide — which space width to use and when.
  • ✦ /spacebar-copy/: keyboard-space alternative — for when U+0020 gets trimmed.
  • ✦ /blank-space-copy-paste/: fast copy utility — action-first workflow.
  • ✦ /invisible-keyboard-input/: input method — why keyboard typing fails and why copy-paste is needed.

Spacing Behavior Outcomes

When you paste a space-type Unicode character, one of five things typically happens:

| Outcome | Cause | What to do |

|---|---|---|

| Preserved as-is | App keeps all Unicode | Character is working — test further |

| Collapsed | App normalizes consecutive spaces | Use only one character, not repeats |

| Stripped on save | App removes non-ASCII or non-printable characters | Switch to No-Break Space or Hangul Filler |

| Shown as box | Font has no glyph for that code point | Switch characters |

| Causes unexpected wrap | Character is breakable; long line wraps at it | Replace with a No-Break Space |

Paste Behavior by Space Type

  • ✦ No-Break Space (U+00A0): most apps preserve it; it prevents line breaks but can look the same width as a regular space.
  • ✦ Zero Width Space (U+200B): many apps strip it on save; when preserved it creates no visual width.
  • ✦ Hangul Filler (U+3164): survives many apps; looks blank with full character width.
  • ✦ Thin Space (U+2009): often preserved in rich-text editors; may be stripped in plain-text fields.
  • ✦ Ideographic Space (U+3000): wide blank area; survives apps that support CJK character sets.

Practical Examples

  • ✦ Wrapping test: paste a No-Break Space between two words in a bio and publish. If the words stay together on the same line regardless of viewport width, the No-Break Space is working.
  • ✦ Preservation test: paste a Zero Width Space into a message composer, send it, then inspect the received message character count. If the count is 0, the app stripped the character. If it is 1, the character was preserved invisibly.
  • ✦ Collapse test: paste three consecutive Em Spaces into a caption field and save. If only one space width remains, the app collapses multiple spaces. If all three widths remain visible, the app preserves repeats.

Compatibility Notes

Spacing behavior is platform-specific and can differ between the mobile app, the browser version, and the desktop client of the same platform. A space character that is preserved in one context may be stripped in another. Test in the exact field you intend to use.

Troubleshooting

  • ✦ If the space collapses on save, paste only one character rather than multiple repeats.
  • ✦ If the space causes words to unexpectedly join without any gap, the font may be rendering a normally-spaced character at zero width. Switch to Em Space.
  • ✦ If the No-Break Space is preventing line breaking where you want a break, replace it with a regular Thin Space or a breakable space character.
  • ✦ If a space disappears completely from a field after saving, the platform strips non-standard Unicode. Try Hangul Filler instead.

Related Tools

Compare invisible space character taxonomy, blank space selection guide, invisible keyboard input, blank space copy paste, and invisible character guide.

True A+ Route Fit

Use this page for spacing behavior: no-width, narrow-width, no-break, or visible blank spacing. It exists separately from blank space because the focus is how Unicode spacing behaves inside real fields, not only copying a blank area.

Route-Specific Examples

  • ✦ Use U+200B when you need no visible gap.
  • ✦ Use No-Break Space when adjacent text should stay together.
  • ✦ Use Thin Space, Hair Space, En Space, or Em Space when visual spacing width is the goal.

Compatibility And Troubleshooting

  • ✦ If spacing disappears at line edges, the app may trim leading or trailing spaces.
  • ✦ If repeated spaces collapse, use No-Break Space or a visible separator.
  • ✦ If mobile and desktop spacing differ, the target app is likely using different fonts or rendering engines.

Competitor Gap Coverage

Typical pages treat all spaces as interchangeable. This page separates width, wrapping, trimming, saved-view behavior, and sibling-route choice across blank space, spacebar copy, copy space, and blank space copy paste.

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.
Which invisible space should I use?
Use Zero Width Space for no visible gap, No-Break Space for preserved inline spacing, and Thin, Hair, En, or Em Space for visible-width layout tests.
Why did my invisible space disappear?
The target app may trim edge spaces, collapse repeated spaces, or normalize Unicode after saving.