Hangul Filler
U+3164Blank-looking special character
Username and handle tester
Build a short username or handle-field candidate, inspect its Unicode, and test whether a strict username field preserves it.
U+3164Blank-looking special character
U+00A0Visible spacing character
U+200BZero-width or format character
U+2003Visible spacing character
This page is the parent route for invisible username testing. It covers the broad how-to, username versus display-name distinction, and platform-specific caveats. For game-specific usernames, use the exact game page. For Discord, use the Discord username page.
These are three different fields with different rules:
Start with the display-name field when testing invisible Unicode because it is usually less strict than the account handle.
Some platforms use the username in public URLs. An invisible-only handle can make a profile URL look blank or confusing. Always check whether your username appears in a URL and whether the platform normalizes it.
Hangul Filler is the best first test for a blank-looking username with visible presence. No-Break Space is better for spacing beside visible text. Zero Width Space is the least likely to survive username validation.
Usernames usually have stricter rules than display names. Some apps reject invisible Unicode outright, require visible alphanumeric characters, or silently remove invisible-only values after saving.
Start from the homepage copy tool for general invisible characters. Compare display-name text, profile-name text, nickname text, invisible name, gaming name hub, and Discord username.
Use invisible username text only for compatibility testing and allowed styling. Avoid impersonation, harassment, evasion, hiding identity, or misleading profile formatting.