Search powered by 
In Unicode, invisible characters are those without a visible representation (glyph) when displayed in text. Despite their lack of visual form, they play critical roles in formatting, control, and special functions, ensuring digital text behaves and displays as intended. Behind the scenes, these characters facilitate layout, processing, and functionality, enabling precise control over text rendering and behavior.
You can detect invisible characters in your text using our tool.
Below is a list of all invisible characters in Unicode, along with their key details.
Depending on the application or font being used, some invisible characters might be displayed as visible symbols. Common representations include boxes (□), dotted outlines, or specific glyphs (␀). This is done to facilitate editing by making it easier for users to identify and manage these hidden characters. Text editors, in particular, may deliberately display these characters to aid in formatting and editing processes. Additionally, if a font does not have the necessary support for a specific invisible character, it might display a generic placeholder symbol instead.
To detect invisible characters in your text, some text editors support a feature that reveals hidden elements like spaces, line breaks, or formatting marks through a configuration option. If you need a quick and easy solution, you can use our tool above to automatically check for and highlight any invisible characters in your content.
Invisible Unicode characters function like regular Unicode characters but without displaying a visible glyph. Since most are not available on standard keyboards, you’ll need specialized tools or applications to use them. The insertion method varies by context: employ the character directly in plain text, its HTML entity in web code, or an escaped code point in CSS.
Yes, invisible characters are counted in string length and can affect comparisons. For example, 'content' and 'content' (with a soft hyphen) have different lengths and are not considered equal. To avoid issues, string sanitization is typically needed before further processing.