Invisible Comment Text — Post Blank Comments

Invisible comment builder

Create invisible comment text to copy and test

Prepare a short invisible comment sample, inspect its Unicode, and test how your target comment field handles it.

Recommended:Use Hangul Filler for blank-looking presence, No-Break Space for spacing, and Zero Width Space for no-width checks.
Safety note:Use this for formatting and compatibility testing. Do not use invisible comment text for spam, flooding, harassment, evasion, or misleading posts.

Controls

Allowed range: 1 to 60. Short samples are easier to verify across apps.
Leave blank for a simple sample, or type a short reference. Maximum 120 characters.
Character or preset

Output and diagnostics

Selected: NoneCode points: Not generatedUnits: 0Width/type: Not testedVisible chars: 0
Choose a preset, generate or analyze, then copy or transfer to the Test Box.

Hangul Filler

U+3164
AㅤB

Blank-looking special character

No-Break Space

U+00A0
A B

Visible spacing character

Zero Width Space

U+200B
A​B

Zero-width or format character

Em Space

U+2003
A B

Visible spacing character

Test Box

Characters: 0

How to Use Invisible Comment Text

Invisible comment text helps test how comment boxes handle hidden Unicode. Generate a small sample, copy it, and verify the exact character before using it.

Best Uses

  • ✦ Test a blank-looking comment separator.
  • ✦ Check if a platform removes invisible-only text.
  • ✦ Compare spacing behavior across mobile and desktop clients.

Compatibility Notes

Invisible comment behavior can differ by platform, browser, mobile app, and moderation settings. A character that works in one field may fail in another.

Troubleshooting

  • ✦ If the comment is rejected, add visible text or use a shorter sample.
  • ✦ If no spacing appears, test No-Break Space instead of Zero Width Space.
  • ✦ If the result is visible as a box, the platform may not support that character.

Responsible Use

Use invisible comment text for formatting and Unicode testing only. Avoid spam, flooding, harassment, evasion, or misleading posts.

FAQ

What is invisible comment text?
It is copyable Unicode that may look blank or create spacing in comment fields.
Will it work on every platform?
No. Platforms vary and may remove, reject, or show invisible characters differently.
Why does the character appear as a box?
The platform or device may not support that character invisibly. Try a different sample.
How should I use it responsibly?
Use it for formatting and testing only, and avoid spam, flooding, harassment, evasion, or misleading posts.