About Geist Mono
Geist Mono — Monospace. Try code, terminal output and aligned values; compare 0/O, braces and punctuation. Use this category as a starting point, then test the actual font file in your layout.
Best for
Readable body text, Developer & code, Logo & wordmark, Technology & SaaS
Design notes
Strongest ThisFont group: Readable body text. Judge them at 16–20px using your real copy, not just large specimen text.
CSS
font-family: "Geist Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;