Why a normal space doesn't work
Most apps trim spaces from the start and end of names and messages, and reject a name that's only spaces. Invisible characters get past that because the app sees them as letters or symbols, not as spaces, even though nothing shows on screen.
Which blank to use
The right one depends on what you're doing:
- Blank name or nickname: Hangul filler (U+3164). It counts as a letter, so name fields accept it.
- Blank line in a caption or bio: Braille blank (U+2800). Put one on each empty line so the app keeps the gap.
- Blank message: Braille blank or the invisible separator (U+2063). Try both, as chat apps differ.
- Stop a word or @mention from turning into a link: a zero-width space (U+200B) inside it.
- Keep two words on the same line: a no-break space (U+00A0).
Which apps strip what
Apps change their filters often, so treat this as a starting point. Zero-width characters are the most likely to be removed, because spammers use them to dodge filters. Whitespace like the no-break space and em space is usually trimmed at the start and end. Hangul filler and Braille blank survive in the most places, but some games and platforms now block Hangul filler in usernames while still allowing it in display names.
If an app rejects one, try another from the list. Always check how it looks on your own profile before you rely on it.
Things to know first
Screen readers may announce some of these characters, and blank names can make it hard for people to find or tag you. Some platforms also treat a blank name as a sign of spam. Use them for a bit of layout or a joke, not to hide who you are.
Invisible characters still count toward character limits, and a few count as more than one. The test box shows the count three ways so you can see exactly how much room they take.
Frequently asked questions
How do I make a blank name?
Copy the Hangul filler (U+3164) and paste it into the name field on its own. If the app rejects it, try the Braille blank or the halfwidth Hangul filler.
How do I send a blank message?
Copy the Braille blank (U+2800) or the invisible separator (U+2063) and send it as the whole message. Some apps block empty-looking messages, so it may not work everywhere.
Is the invisible character a virus or harmful?
No. It's a normal Unicode character, the same kind of thing as a letter. It just has no visible shape.
Why did my blank name stop working?
Apps update their filters to stop blank names and lookalike usernames. When that happens, a different character from the list often still works.
How do I find invisible characters in my text?
Paste the text into the test box. It lists every invisible or space-like character it finds, with its code and how many times it appears.