Non-Spacing Marks (NSMs) are an essential category in Unicode, designed to modify the appearance of characters without occupying additional space. Unlike spacing characters, which create visible gaps or spaces in text, NSMs are used to adjust the way characters are rendered, providing critical diacritical marks and accents that are integral to many languages.
These marks include accents, tilde, and other diacritical symbols that can be combined with base characters to form complete glyphs. For instance, in languages such as French or Spanish, accents like the acute (  ́ ) or grave ( ` ) are used to convey different pronunciations and meanings. Similarly, in various Indic scripts, non-spacing marks are used to denote vowel signs and other modifications that affect the pronunciation of consonants.
By utilizing NSMs, Unicode ensures that texts in diverse languages and scripts can be accurately represented, providing essential flexibility for linguistic and typographic needs. They play a crucial role in ensuring that characters are displayed correctly and legibly in digital text.

Below you will find all the characters that are in the 'Non-spacing Mark' Unicode category. Currently there are 2020 characters in this category.