UNICODE TEXT INSPECTOR
Invisible Unicode Characters
Invisible Unicode characters are code points that may have no visible glyph while remaining part of a string. Paste text to find listed characters by position and review them before removal.
For the U+200B-specific default selection, see the zero width space checker.
Findings
Paste text to scan.| Remove | Position | Character | Context |
|---|---|---|---|
| No text scanned yet. | |||
No changes made.
SCOPE
What invisible Unicode characters are
An invisible Unicode character can remain part of a string even when it has no obvious visible mark. “Invisible Unicode” and “Unicode invisible character” are broad search phrases: they can refer to separators, shaping controls, bidirectional marks, or mathematical operators. This page names the exact code points it scans instead of treating every unusual or whitespace character as the same thing.
Other listed characters are detected for review; joiners, direction marks, and invisible operators can carry text or layout semantics. This is not a detector for every Unicode character that may render invisibly.
METHOD
How this invisible character checker works
Input is read as Unicode code points in this browser tab. Each match shows its one-based code-point position and a short context. “Remove selected” removes checked character types from the original input, and “Copy cleaned text” copies the result. Text stays in this browser; it is not sent to a processing server.
Removing U+200D ZERO WIDTH JOINER can split an emoji sequence, while removing U+200C ZERO WIDTH NON-JOINER or direction controls can change shaping or reading order. U+FEFF can be a byte-order mark at the start of a stream, so it is listed separately and is not selected by default.
REPRODUCIBLE CHECKS
Reproducible scanner examples
These examples describe scanner behavior using synthetic strings. Paste each escaped sample into the tool above to check the reported position, default selection, and cleaned output. They do not claim to measure how other apps or clipboard workflows preserve characters.
| Synthetic input (escape notation) | Observed finding | Action and result |
|---|---|---|
alpha\u200Bbeta | 10 code points; U+200B at position 6, selected by default | Remove selected produced alphabeta. Copy status changed to “Cleaned text copied.” |
😀\u200BZ | 3 code points; U+200B at position 2 | Remove selected produced 😀Z. |
A\u200DB | 3 code points; U+200D at position 2, unchecked by default | With no selection, removal preserved the input. After “Select all found,” removal produced AB. |
UNICODE REFERENCE
Invisible character reference table
This table documents the explicit set scanned by this page. Names and code points follow the Unicode Character Database. “Possible route” and “possible effect” are practical notes, not a claim that every source inserts the character.
| Character name | Code point | Possible route | Possible effect | Cleanup | Official record |
|---|---|---|---|---|---|
| SOFT HYPHEN | U+00AD | Word processing or line-break formatting | Can affect matching; may display a hyphen at a line break | Remove only if the discretionary hyphen is unwanted | UnicodeData.txt |
| COMBINING GRAPHEME JOINER | U+034F | Unicode text processing | Can affect grapheme boundaries and comparisons | Review surrounding combining marks before removal | UnicodeData.txt |
| ARABIC LETTER MARK | U+061C | Bidirectional Arabic text | Can influence bidirectional rendering | Remove only after checking mixed-direction text | UnicodeData.txt |
| ZERO WIDTH SPACE | U+200B | Text layout or copied text | Can create an invisible line-break opportunity or break exact matching | Selected by default; remove if the break hint is unwanted | UnicodeData.txt |
| ZERO WIDTH NON-JOINER | U+200C | Shaping in scripts that use joining | Can change how adjacent letters connect | Review script shaping before removal | UnicodeData.txt |
| ZERO WIDTH JOINER | U+200D | Emoji sequences or script shaping | Can join glyphs or emoji into a sequence | Review emoji and script shaping before removal | UnicodeData.txt |
| LEFT-TO-RIGHT MARK | U+200E | Bidirectional text formatting | Can influence reading order around mixed-direction text | Review mixed-direction context before removal | UnicodeData.txt |
| RIGHT-TO-LEFT MARK | U+200F | Bidirectional text formatting | Can influence reading order around mixed-direction text | Review mixed-direction context before removal | UnicodeData.txt |
| LEFT-TO-RIGHT EMBEDDING | U+202A | Legacy bidirectional formatting | Can alter displayed direction until its matching terminator | Review the full directional span before removal | UnicodeData.txt |
| RIGHT-TO-LEFT EMBEDDING | U+202B | Legacy bidirectional formatting | Can alter displayed direction until its matching terminator | Review the full directional span before removal | UnicodeData.txt |
| POP DIRECTIONAL FORMATTING | U+202C | Legacy bidirectional formatting | Can end an embedding or override scope | Review the full directional span before removal | UnicodeData.txt |
| LEFT-TO-RIGHT OVERRIDE | U+202D | Legacy bidirectional formatting | Can force displayed direction and confuse visual inspection | Review the full directional span before removal | UnicodeData.txt |
| RIGHT-TO-LEFT OVERRIDE | U+202E | Legacy bidirectional formatting | Can force displayed direction and confuse visual inspection | Review the full directional span before removal | UnicodeData.txt |
| WORD JOINER | U+2060 | Text layout or copied text | Can prevent a line break between adjacent characters | Selected only after review; removal may change wrapping | UnicodeData.txt |
| FUNCTION APPLICATION | U+2061 | Mathematical notation | Can represent invisible function application | Review mathematical text before removal | UnicodeData.txt |
| INVISIBLE TIMES | U+2062 | Mathematical notation | Can represent an invisible multiplication operator | Review mathematical text before removal | UnicodeData.txt |
| INVISIBLE SEPARATOR | U+2063 | Mathematical notation | Can separate mathematical expressions without a visible mark | Review mathematical text before removal | UnicodeData.txt |
| INVISIBLE PLUS | U+2064 | Mathematical notation | Can represent an invisible addition operator | Review mathematical text before removal | UnicodeData.txt |
| LEFT-TO-RIGHT ISOLATE | U+2066 | Bidirectional text formatting | Can isolate a left-to-right span | Review the full directional span before removal | UnicodeData.txt |
| RIGHT-TO-LEFT ISOLATE | U+2067 | Bidirectional text formatting | Can isolate a right-to-left span | Review the full directional span before removal | UnicodeData.txt |
| FIRST STRONG ISOLATE | U+2068 | Bidirectional text formatting | Can isolate text using its first strong direction | Review the full directional span before removal | UnicodeData.txt |
| POP DIRECTIONAL ISOLATE | U+2069 | Bidirectional text formatting | Can end an isolate span | Review the full directional span before removal | UnicodeData.txt |
| ZERO WIDTH NO-BREAK SPACE / BOM | U+FEFF | File signature or legacy word-joining use | A leading mark may be an encoding signature; embedded use can affect matching | Not selected by default; keep a valid leading BOM | UnicodeData.txt |
The Unicode Character Database supplies official character names and code points. The standard distinguishes line-break controls, shaping controls, mathematical operators, and bidirectional formatting; they are not interchangeable.
QUICK ANSWERS
Invisible Unicode characters FAQ
What are invisible Unicode characters?
They are Unicode code points that can have no obvious visible glyph while still being part of text. Their behavior depends on the specific character and its surrounding text.
What is a zero width space?
U+200B ZERO WIDTH SPACE is an invisible line-break opportunity. It can also make exact text matching fail when an application treats it as part of the string.
What does “Unicode invisible character” mean?
It is an informal phrase for a Unicode character that may not produce an obvious visible mark. The exact name, code point, and behavior matter; this page scans only the listed set.
Is an invisible character the same as a blank space?
No. A blank space usually occupies visible layout width, while characters such as ZERO WIDTH SPACE may have no width. Other invisible formatting characters can affect joining, direction, or mathematical notation.
Does this remove every invisible Unicode character?
No. It scans the explicit code points in the table. Unicode contains many characters with invisible or formatting behavior, and this page does not claim to find every one.
Why are some detected characters not selected by default?
Joiners, direction controls, mathematical operators, and a leading byte-order mark can carry meaning. Review the character and its context before choosing to remove it.