Ordinary U+0020
[A B]
U+3000 · IDEOGRAPHIC SPACE · FULLWIDTH SPACE
Ideographic Space Copy & Paste
Copy a fullwidth U+3000 space, compare its gap with ordinary and Em Space, and see what to check when a wide blank appears unexpectedly in text.
- One real space per copy
- Wide in an ideographic font
- Can change under compatibility normalization
COPY U+3000
Get the exact fullwidth space.
Choose one character or three. The brackets below mark the gap for display; they are not copied.
one U+3000 between the brackets
If automatic copying is blocked, select the value in the field and use your device’s copy command. This field updates to match the chosen amount.
SEE THE SPACE
A fullwidth gap is still one character.
These are real characters in this page's font, not a fixed-pixel drawing. The brackets are explanatory and are not in the copied value.
Em Space U+2003
[A B]
Ideographic Space U+3000
[A B]
U+3000 was designed as a wide space appropriate for ideographic fonts. Its on-screen width and the relative gaps above depend on the actual font and layout; it is not a promise of a particular pixel measurement or username appearance.
IDENTITY
The value you copied is a Unicode space separator.
Unicode nameIDEOGRAPHIC SPACE
Code pointU+3000
Decimal12288
CategoryZs · Space Separator
BlockCJK Symbols and Punctuation
Common descriptionFullwidth space
CHOOSE A GAP
Fullwidth, Em and No-Break Spaces are different.
| Character | What it is for | Key caution |
|---|---|---|
| U+3000 Ideographic Space | Wide space for ideographic text | Compatibility normalization can map it to U+0020 |
| U+2003 Em Space | Em-based typographic gap | Not a fullwidth CJK character by definition |
| U+0020 Ordinary Space | Normal word separation | Usually narrower; font dependent |
| U+00A0 No-Break Space | Space-like gap that resists a break | Not chosen for wide CJK spacing |
| U+3164 Hangul Filler | Blank-looking letter | Not a space separator |
U+3000 is a breaking space under Unicode line-breaking rules; it is not a No-Break Space. “Ideographic space,” “fullwidth space” and “U+3000” point to the same character here. They do not require separate copy pages.
CODE AND CONVERSION
A written reference is not the space itself.
JavaScript string
"\u3000"HTML decimal
　HTML hexadecimal
　UTF-8 bytes
E3 80 80For plain text, use the copy button. In HTML source, the parser turns the numeric reference into U+3000. The visible letters U+3000 are only a label.
One way the value can change
In JavaScript, "\u3000".normalize("NFKC") becomes ordinary U+0020 because Unicode defines a compatibility mapping. JavaScript trim() also removes U+3000 at the ends of a string. Your target app may have different processing; inspect its saved value before concluding what happened.
USE AND RECOVERY
Use it for spacing; diagnose unexpected wide gaps.
- Copy one U+3000 for a deliberate gap.
Try it between characters in the actual font and field. Do not rely on repeated spaces for responsive page layout; CSS spacing is more adaptable for websites.
- Identify a gap you did not intend.
Paste the saved text into the checker. It reports U+3000 and its position if the code point is still present. Appearance alone cannot distinguish every wide space.
- Repair the source deliberately.
If you need ordinary spaces, use an editor's find/replace with the actual U+3000 character and review the result. The site's normalizer does not specifically replace U+3000, and its remover does not offer it as a selected character.
QUESTIONS
Ideographic Space FAQ
How do I copy just one fullwidth space?
Use “Copy one U+3000.” The button requests only the character, without brackets or surrounding text.
Is U+3000 the same as Em Space?
No. Both can appear wide, but U+3000 is an ideographic wide space; U+2003 is an em-based typographic space. The precise rendering depends on the font.
Why did my fullwidth space turn into an ordinary space?
One possible cause is compatibility normalization: Unicode maps U+3000 to U+0020 under NFKC. Check the stored value first; the page cannot determine which transformation your app used.
Will a single U+3000 make a blank name?
Do not rely on it. JavaScript trim removes a leading or trailing U+3000, and a destination can have its own input rules. A successful copy does not guarantee that a name will save.
How do I replace unwanted U+3000 spaces?
Identify them with the checker, then find and replace the actual character in an editor and inspect the result. The site's current normalizer is not a U+3000 converter.
SOURCES
Unicode defines the code point; the destination decides what it keeps.
UnicodeData 18.0.0Official name, category and code point record.Unicode Chapter 6U+3000 and ideographic text width.Unicode U+3000 code chartOfficial name and wide compatibility mapping.Unicode normalization formsWhy compatibility mappings matter under NFKC.Unicode line breakingU+3000 behaves as a breaking space.