Zero-width space (U+200B)

Copy the character, insert it between letters, or check pasted text for hidden zero-width characters.

1. Copy one zero-width space

The character has zero visual width and cannot be seen on screen.

2. Insert between letters

Adds a zero-width space after every character. The text looks unchanged but no longer matches exact keyword filters.

3. Detect and remove

Paste text to count hidden zero-width characters and strip them.

Zero-width characters found: 0

What U+200B is

The zero-width space is a Unicode character with no visual width. It occupies a position in the text but draws nothing.

Typesetting uses it to mark where a line may break without a visible hyphen. In web forms it is often inserted between letters to break up words that automated filters match on.

Detecting hidden characters

Some tools insert zero-width spaces into documents as a watermark, so a leaked copy can be traced back to its source. The detector below shows every zero-width character in a piece of text and removes them in one click.