Hangul Filler
A visibly blank-width character often accepted where ordinary spaces are removed.
Not all invisible characters are the same. Choose a Unicode character, set how many copies you need, then test it between visible words before using it in another app.

A visibly blank-width character often accepted where ordinary spaces are removed.
A blank braille-pattern character with visible width in many fonts.
A zero-width separator. It may be removed or ignored by some apps.
A zero-width formatting character intended to prevent line breaks at its position.
Some services remove invisible characters, normalise them, or prohibit them in usernames. Test the exact destination field rather than assuming every blank character will work.
Hangul Filler and Braille Pattern Blank usually occupy visible width. Zero Width Space and Word Joiner do not. Their intended Unicode roles also differ, which is why this tool labels the exact code point instead of pretending all invisible characters are interchangeable.
Practical differences that matter when blank-looking text is copied.
The destination may trim whitespace, normalise Unicode or block formatting characters. Try another labelled option and test the exact field.
No. U+200B has zero visual width and is a Unicode formatting character, while an ordinary U+0020 space normally occupies width.
No input is needed for copying the supplied characters, and the quantity/test controls run locally in your browser.
Some services allow particular Unicode characters and others explicitly reject them. The tool provides characters; it does not promise that a platform will accept a blank-looking name.
These pages are closely related to what you are using here.