Prompt

Designed by Cadson Demak

9 weights • Version 12 • On Google Fonts since 2016 • Popularity #40

Quick Summary

18

Styles · incl. italic

100-900

Weight Range

Static

Not variable

4

Languages / Subsets

Category
sans-serif
Best for
textdisplayui
Descriptors
geometric
Scripts
Latin, Thai, Vietnamese
Origin
United States
License
SIL Open Font License
Last updated
Sep 2, 2025

© 2015, Cadson Demak

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The quick brown fox

32px
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About Prompt Fonts

Prompt in Thai means “ready,” the same as in English. Prompt is a loopless Thai and sans Latin typeface. The simple and geometric Latin was developed to work harmoniously with the loopless Thai that has wide proportions and airy negative space. It is suitable for both web and print usage, such as magazines, newspapers, and posters.

A similarity between some glyphs such as ก ถ ภ ฤ ฦ, ฎ ฏ, บ ป, ข ช is something to take into consideration because it might lead to confusion when typesetting very short texts. Formal loopless Thai typefaces are simplified, compared to traditional looped Thai types, and this simplification has to be done properly in order to preserve the essense of each character. The size and position of Thai vowel and tone marks has been managed carefully, because they are all relevant to readability, legibility, and overall texture.

The Prompt project is led by Cadson Demak, a type foundry in Thailand. To contribute, see github.com/cadsondemak/prompt

Who Designed Prompt?

All designers

Cadson Demak is the first Thai communication design firm to develop type design solutions. Founded in 2002, the studio came together through a shared love of typography and design, a wish to expand and modernize the font industry as a whole, and the desire to make everyday use of type more accessible. They expanded from a modest design firm with dozens of their own typefaces into a boutique type foundry under the name Cadson Demak in 2008.

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