Detect hidden Unicode characters in pasted text, including Hangul Filler, Zero Width Space, No-Break Space, and other invisible formatting marks.
Text can look normal while still containing hidden Unicode characters that affect forms, usernames, code, search fields, messaging apps, and HTML output. This tool helps you spot those characters quickly.
If you copied text from a website, chat app, spreadsheet, or editor and something feels off, the issue may be an invisible character rather than visible text.
Use this interactive detector to check whether pasted text contains hidden Unicode characters such as Hangul Filler, Zero Width Space, No-Break Space, or other invisible formatting marks.
This is useful when copied text looks normal but behaves strangely in forms, usernames, code, chat apps, editors, or HTML.
The detector shows the character name, Unicode code point, how many times it appears, and why it matters. If your text contains a blank-looking character, use the related guide to decide whether to keep it, replace it, or remove it.
For example, Hangul Filler is often useful for blank text copy and paste, while Zero Width Space is more useful for formatting or hidden separators.
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.
Explore the most useful guides on BlankText.Net for blank messages, Instagram, gaming nicknames, and Unicode spaces.
It scans pasted text for known Unicode whitespace and invisible formatting characters, then explains what they are and how they are commonly used.
Yes. Some systems trim them, some keep them, and some reject them entirely. That is why detection matters when debugging blank text, copied content, or strange field behavior.
For most blank-text use cases, Hangul Filler (U+3164) is the best first character to try. For formatting and hidden separators, Zero Width Space is often a better fit.