␣ Invisible Characters, Copy & Paste

Invisible characters are genuine Unicode code points that draw nothing, or only blank space, when a font renders them. People reach for them to make a Discord nickname look empty, send a WhatsApp message that appears blank, or pad a Free Fire or PUBG name past a filter that rejects ordinary spaces. The set below holds 26 of them in four groups: Hangul fillers, which Unicode classes as letters (Lo); the Braille blank, a symbol (So); zero-width format controls (Cf); and the space separators (Zs), from the hair space up to the full-width ideographic space. Each tile shows the code point and official name, and the shaded strip inside it shows how wide the character really is in your font. Which apps accept which character changes often, so treat this as a list of things to try rather than a guarantee.

Invisible Characters to Copy

Each tile shades the character so you can see its width. A tile with no shading holds a zero-width character, which is still copied.

Code point reference

Character	Code point	Unicode name	Category	What it is
ㅤ	U+3164	HANGUL FILLER	Lo	Hangul compatibility filler. It is a letter, so trim() keeps it. Usually drawn full width.
ﾠ	U+FFA0	HALFWIDTH HANGUL FILLER	Lo	Halfwidth form of the Hangul filler. NFKC turns it into U+1160.
ᅟ	U+115F	HANGUL CHOSEONG FILLER	Lo	Fills the empty initial-consonant slot of a Hangul syllable block.
ᅠ	U+1160	HANGUL JUNGSEONG FILLER	Lo	Fills the empty vowel slot of a Hangul syllable block.
⠀	U+2800	BRAILLE PATTERN BLANK	So	Braille cell with no raised dots. A symbol, not whitespace.
	U+200B	ZERO WIDTH SPACE	Cf	No width. Marks a point where a line may break.
‌	U+200C	ZERO WIDTH NON-JOINER	Cf	No width. Stops two letters from joining in Arabic-script languages such as Persian.
‍	U+200D	ZERO WIDTH JOINER	Cf	No width. Joins emoji into combined sequences.
⁠	U+2060	WORD JOINER	Cf	No width. Prevents a line break between its neighbors.
	U+FEFF	ZERO WIDTH NO-BREAK SPACE	Cf	Byte order mark. trim() removes it, unlike U+200B.
᠎	U+180E	MONGOLIAN VOWEL SEPARATOR	Cf	Was a space until Unicode 6.3 reclassified it as a format control.
⁢	U+2062	INVISIBLE TIMES	Cf	Math control meaning multiplication, as in xy. Renders as nothing.
⁣	U+2063	INVISIBLE SEPARATOR	Cf	Math control for an unseen comma, as in subscripts like a_ij.
	U+00A0	NO-BREAK SPACE	Zs	Same width as a normal space but blocks line breaks. NFKC makes it U+0020.
	U+2002	EN SPACE	Zs	Half an em wide.
	U+2003	EM SPACE	Zs	One em wide, roughly the width of the letter M.
	U+2004	THREE-PER-EM SPACE	Zs	One third of an em.
	U+2005	FOUR-PER-EM SPACE	Zs	One quarter of an em.
	U+2006	SIX-PER-EM SPACE	Zs	One sixth of an em.
	U+2007	FIGURE SPACE	Zs	The width of one digit, used to align numbers in tables.
	U+2008	PUNCTUATION SPACE	Zs	The width of a period or comma in the current font.
	U+2009	THIN SPACE	Zs	Narrow typesetting space, often a fifth of an em.
	U+200A	HAIR SPACE	Zs	The narrowest space, thinner than a thin space.
	U+202F	NARROW NO-BREAK SPACE	Zs	Narrow and non-breaking. French typography puts it before ! and ?.
	U+205F	MEDIUM MATHEMATICAL SPACE	Zs	Four eighteenths of an em, for spacing math formulas.
	U+3000	IDEOGRAPHIC SPACE	Zs	Full-width space as wide as one Chinese or Japanese character.

Why a letter can pass where a space fails

Most name fields reject a blank entry by trimming whitespace and checking what remains. In JavaScript, String.prototype.trim() removes all thirteen Zs characters on this page plus U+FEFF, which we confirmed in Node.js, so a name built only from em spaces or no-break spaces collapses to nothing. U+3164 HANGUL FILLER survives that check because Unicode classifies it as a letter, category Lo, not as whitespace. The same holds for the Braille blank U+2800, a symbol with an empty dot pattern. That is the most likely reason these two are the ones widely reported to work in game and social profiles that refuse plain spaces.

Normalization can turn a fancy space back into a plain one

Many services normalize usernames to the NFKC form before saving them, mainly to stop look-alike spoofing. Running Python's unicodedata module over this set shows what that does: every Zs character here, from U+00A0 to U+3000, becomes an ordinary U+0020 space, and both U+3164 and the halfwidth U+FFA0 become U+1160 HANGUL JUNGSEONG FILLER. The format controls and the Braille blank pass through unchanged. So if a blank name saves but later shows up trimmed or merged, normalization is a likely cause. Try a different group from the table, test it in a private message or a throwaway profile first, and keep the original name somewhere you can paste it back from.

Frequently Asked Questions

Which invisible character works for a Free Fire or Discord name?

No single character is accepted by every app, and we have not tested each app ourselves. U+3164 HANGUL FILLER is the one most widely reported to work in game nicknames, with U+2800 as the usual fallback. Copy one, paste it into the name field, and save to see whether the app keeps it.

What is the difference between a zero-width space and a Hangul filler?

U+200B ZERO WIDTH SPACE is a format control (Cf) that takes no width and marks a spot where a line may break. U+3164 is a letter (Lo) that most fonts draw as an empty, full-width cell. The first hides between words; the second takes up room like any other character.

Can invisible characters cause problems?

Yes. Pasted into code, a URL or a password, a zero-width character makes two strings that look identical compare as different, a common source of bugs that are hard to track down. Search tools and screen readers may also skip them or announce them oddly. Use them in display names and messages, not in logins.