Invisible Character Demo
Understanding and detecting zero-width and invisible characters
Invisible characters are special Unicode characters that don't have a visual representation but can affect text processing, formatting, and data validation. This demo shows how to detect and visualize these characters.
🔍 Zero-Width Space (U+200B)
This text appears as "HelloWorld" but contains an invisible zero-width space character between the words.
🔍 Zero-Width Joiner (U+200D)
This text contains a zero-width joiner, used to control ligatures and cursive connections in some scripts.
🔍 Zero-Width Non-Joiner (U+200C)
This text contains a zero-width non-joiner, used to prevent connections between characters that would normally join.
🔍 Multiple Invisible Characters
This text contains multiple invisible characters (zero-width spaces) between words.
Test Your Own Text
Paste or type text below to check for invisible characters:
About Invisible Characters
Invisible characters are Unicode code points that have no visual representation but serve specific functions in text processing:
| Character | Unicode | Name | Purpose |
|---|---|---|---|
| | U+200B | Zero-Width Space | Indicates word boundaries without visible space |
| | U+200D | Zero-Width Joiner | Connects characters that would not normally connect |
| | U+200C | Zero-Width Non-Joiner | Prevents connection between characters |
| | U+2060 | Word Joiner | Prevents line breaks at its position |
| | U+FEFF | Zero-Width No-Break Space | Byte order mark or prevents line breaks |
These characters can cause issues in data processing, validation, and text comparison if not handled properly.