Letters in monospaced typefaces each occupy the same amount of horizontal space — think of typewriters or MS-DOS. This contrasts with other kinds of typefaces, where each letter has its own proportional spacing, based on the actual width of the character.

Monospaced typefaces are easier to scan than proportional typefaces. They're often used for things like code because they can make it easier to spot mistakes. But overall, they have lower readability than proportional typefaces.

Common monospaced typefaces include Courier, Courier New, Apercu Mono, or Space Mono.