Why is zero-width space bad for blank text?

U+200B has zero width and was designed for line-break control, not blanks. Platforms like Instagram strip it, so your text silently disappears.

What is U+3164 used for?

It's a Korean Hangul filler character that renders blank. It's popular for gaming names because it passes filters in PUBG and Free Fire that catch other invisible characters.

Home GuidesInvisible Character vs Blank Space: What's the Difference?

Invisible Character vs Blank Space: What's the Difference?

Published October 1, 2026 · Updated October 2, 2026 · By InvisibleChar

Not all invisible characters are the same. They look identical (nothing), but apps treat them very differently. Here's the practical breakdown:

Method

Braille Pattern Blank (U+2800) — Works almost everywhere — WhatsApp, Instagram, Discord, and most games.

Length

Preview

⠀

Border shows the invisible text is selected — empty look is expected.

Ready to copy

Test box

Pasted length: 0 characters

Works on WhatsApp, Instagram, TikTok, Discord, PUBG, Free Fire.

U+2800 — Braille Pattern Blank

A blank Braille cell. It has real width, so apps see it as a genuine character occupying space. This is why it survives filters on WhatsApp, Instagram, and Discord better than anything else. Default choice — start here.

U+200B — Zero-Width Space

Exactly what it sounds like: a space with zero width. It was designed for line-break control in text rendering, not for visible blanks. Many platforms (Instagram especially) strip it outright. Useful only when you specifically need a zero-width joiner behavior — not for blank messages.

U+200C / U+200D — Zero-Width Non-Joiner / Joiner

Even more specialized — they control how adjacent characters join (important in Arabic script rendering). Almost never what you want for blank text.

U+3164 — Hangul Filler

A filler character from the Korean Hangul block. Renders blank, has width, and for whatever reason passes many game name filters (PUBG, Free Fire) that catch U+2800. The gamer's pick.

U+2060 — Word Joiner

Prevents line breaks. Occasionally useful, rarely the right answer for blanks.

The decision tree

Need a blank message or bio? → U+2800. Game rejected it? → U+3164. Both rejected? → Try U+2060, then accept that this platform filters aggressively. Never start with U+200B for visible blanks — it's the weakest option for this job.

Related guides

FAQ

Braille Pattern Blank (U+2800) — it has real width, so apps treat it as a genuine character and it survives most platform filters.

Sources

Invisible characters on this site are standard Unicode code points. Definitions come from the Unicode Consortium charts:

Braille Patterns (U+2800) — unicode.org
Hangul Compatibility Jamo (U+3164) — unicode.org
General Punctuation (U+200B, U+200C, U+2060) — unicode.org