Ideographic Space is the full-width space of Chinese, Japanese and Korean typography. It matches the width of a CJK character exactly, which makes it the widest space in common use and the only one that aligns properly with ideographic text.
Click the button above to copy Ideographic Space, then paste it wherever you need it. Nothing will appear on your clipboard preview - that is expected, because the character is blank.
| Unicode code point | U+3000 |
|---|---|
| Character name | Ideographic Space |
| Unicode category | Zs (Space Separator) |
| Rendered width | Exactly 1 em - full-width, matching a CJK character |
| Line breaking | Breaking - a line can wrap here |
| Collapses in HTML | No |
| Survives trim() | Usually yes |
| HTML entity | |
| JavaScript escape | '\u3000' |
| CSS escape | \3000 |
Need these values in another format? The HTML space characters converter turns any Unicode whitespace character into HTML entities, JavaScript escapes and CSS escapes.
U+3000 IDEOGRAPHIC SPACE is one em wide - the same width as a Han character, a kana or a Hangul syllable. CJK scripts are set on a fixed square grid where every character occupies the same cell, and this space is the blank cell in that grid.
In Japanese and Chinese writing it is the standard paragraph indent and the usual separator between a surname and a given name. It is also what you get when you press the space bar with a Japanese or Chinese input method active, which is why it turns up unexpectedly in text and code that passed through a CJK keyboard.
The same character can be preserved in one place and silently removed in another. Here is what actually happens to Ideographic Space in the three contexts that matter most.
Does not collapse. Each one renders at a full em, making it very visible.
Usually survives basic trimming, though Unicode-aware validators often normalise it to a regular space.
Widely preserved and unmistakably wide - it produces a full-character gap, so it is useful for visible spacing and useless for looking empty.
Not sure what is in a string you already have? Paste it into the invisible character detector to see every hidden character with its code point, or use remove invisible characters to strip them out.
CJK typography, and any situation needing a full-width em gap that aligns with ideographic characters.
If what you actually need is text that looks completely empty - a blank WhatsApp message, an empty Instagram highlight name, a blank comment or a Free Fire name space - then Hangul Filler is the character to use, because it is not classified as whitespace and survives the trimming that removes Ideographic Space.
Different apps prefer different Unicode characters. Start with these combinations.
Best first choice: Hangul Filler (U+3164). Alternatives: Zero Width Space and No-Break Space.
Best first choice: Hangul Filler. Alternative for tighter formatting: Zero Width Space.
Start with Hangul Filler. If the game rejects it, try Space or No-Break Space.
Use No-Break Space for preventing line breaks, EN Space and EM Space for wider spacing, and Thin Space or Hair Space for finer adjustments. For code-ready values and conversion, see HTML Space Characters.
Width is the fastest way to choose between these characters. If Ideographic Space is not right for your use case, one of these probably is.
| Character | Unicode | Width |
|---|---|---|
| Left-To-Right Mark | U+200E | Zero - it is a formatting mark, not a space |
| Right-To-Left Mark | U+200F | Zero - it is a formatting mark, not a space |
| Space | U+0020 | Font-dependent, typically about 1/4 em |
| No-Break Space | U+00A0 | Same width as a regular space in the current font |
| Zero Width Space | U+200B | Zero - it occupies no horizontal space at all |
| EN Space | U+2002 | Exactly 1/2 em - half the current font size |
| EM Space | U+2003 | Exactly 1 em - equal to the current font size |
| Three-Per-Em Space | U+2004 | Exactly 1/3 em |
| Four-Per-Em Space | U+2005 | Exactly 1/4 em |
| Six-Per-Em Space | U+2006 | Exactly 1/6 em |
See all 18 Unicode space and invisible characters compared →
One full em, the same width as a Chinese, Japanese or Korean character. That makes it the same width as an EM Space and the widest space in common use.
Almost certainly because it was typed with a Japanese or Chinese input method active. Those IMEs produce U+3000 when you press the space bar, which is a frequent source of confusion in code and data files.
They are the same width, but they come from different traditions and different Unicode blocks. Ideographic Space belongs to CJK typography and aligns with the square character grid; EM Space is the Western typographic em.
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