Zero-width and invisible
BRAILLE PATTERN BLANK (U+2800)
The braille cell with no dots raised. It is a printing character with a real advance width, but nothing is drawn.
- Codepoint
U+2800- Also written as
u2800\u2800⠀- Category
- Zero-width and invisible
- Removed by default
- Yes
- Governing option
- No option needed
- Can be load-bearing
- No
Copy and paste U+2800
To copy and paste BRAILLE PATTERN BLANK (U+2800), press the button: the character itself goes to your clipboard, and Ctrl+V (Cmd+V on a Mac) pastes it anywhere you can type.
Where it comes from
Braille documents, and internet culture, where it is the character behind "invisible" nicknames and blank chat messages, because it is not whitespace and so passes filters that reject empty input.
Why it matters
It defeats "message cannot be empty" checks, pads text with invisible width, and looks like a space to a reader while sorting and comparing as a braille character.
Before and after
Three braille blanks: visible width, no ink, and not a space.
The character is shown as a labelled chip so you can see where it sits. In your text it draws nothing at all.
When it is legitimate
Inside actual braille content, where it is the space between cells.
How to remove it
The default pass removes it. Run a braille document through the cleaner only if you are certain the braille itself is not the content.
Working in a file rather than a paste? The document report for .docx, .odt and .html finds it inside the file, together with hidden runs and tracked changes, without you having to open it. If the question is what the rest of the writing does rather than what this one character does, measure sentence-length variation and see where each habit sits, with no score and no claim about who wrote the text.
Is it an AI watermark?
Not a watermark
No. It is the standard trick for posting a "blank" message on platforms that reject empty ones. It has nothing to do with generated text.
No connection to machine-generated text. It comes from software, from a keyboard, or from a person.
Questions
Why do blank chat messages contain it?
Because a message made of braille blanks is not empty and not whitespace, so the "empty message" check passes and the message renders as nothing.
Does removing it break braille?
Yes. In real braille content it is the inter-cell space. Do not run a braille document through the default pass.
Check your own text
Paste anything into the cleaner to see every hidden character it contains, with position, codepoint and what happens to each one. Nothing is uploaded.
Check your own textClean it in Chrome as you pasteClean it on your Mac with one keystrokeAll characters