font inspectorWhat font does Perplexity use?
An AI answer engine is mostly reading, so Perplexity built its own family: a sans, a serif and a mono under the PPLX name. The logged-out home page shows only the sans, and only a little of it.
Short answer: Perplexity uses PPLX Sans, a custom variable font, for its home page, at unusually light weights between 350 and 470. FK Grotesk Neue, PPLX Serif and Berkeley Mono are loaded for answers and code.
PPLX Sans
Self-hosted100%- CSS name
pplxSans- Weights
- 350, 360, 470
- Sizes
- 26px · 16px · 14px · 12px · 11px
- Served from
- frontend-cdn.perplexity.ai
Sizes, weights and spacing by role
These are computed values from the live page, which is what the Font Inspector panel shows when you click each element.
| Role | Font | Size | Weight | Line height | Letter spacing |
|---|---|---|---|---|---|
| Headline | PPLX Sans | 26px | 350 | 1.5 | normal |
| Body text | PPLX Sans | 14px | 360 | 1.43 | normal |
| Button | PPLX Sans | 12px | 470 | 2 | normal |
The main font stack in the CSS:
font-family: pplxSans, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";- Weights of 350, 360 and 470 are only possible with a variable font. Most sites round to 400 and 500.
- Body text sets
font-variation-settingsexplicitly to"DRKM" 0, "slnt" 0. - FK Grotesk Neue by Florian Karsten and the commercial Berkeley Mono are declared and partly downloaded, but no visible text used them on the home page.
Check any site yourself in one click.
Sites change their type without notice. Font Inspector shows the rendered font, size, weight and spacing of any text on perplexity.ai or anywhere else, and lists every font on the page. Free, no account.
About the fonts, and whether you can use them
PPLX Sans
Perplexity’s own sans serif, served as one variable file still labeled Beta. Besides weight and slant it exposes a custom axis named DRKM.
Can you use it? No. PPLX Sans is proprietary. Inter and Geist are free variable sans serifs that offer the same fine control over weight.
Finding a font does not license it. More in how to get a font you found, legally.
Get a similar look with a free font
This starter uses Inter, which is open source, with the sizes and spacing measured above. It is an approximation, not a copy of Perplexity’s brand typeface.
/* Approximates the Perplexity look with a free font */
body {
font-family: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
}
h1 {
font-size: 1.625rem; /* 26px */
font-weight: 350;
line-height: 1.5;
}
p {
font-size: 0.875rem; /* 14px */
font-weight: 360;
line-height: 1.43;
}How we checked
We opened perplexity.ai in Chrome on November 5, 2026 and read the computed styles of its visible text: the declared font stack, the font actually rendered, and how much of the page’s text each family sets. That is the same data the Font Inspector extension shows under Fonts on this page. We re-check these pages periodically, and the date above shows the last inspection.
Perplexity and its typefaces are trademarks of their respective owners. Font Inspector is not affiliated with Perplexity.
Questions & answers
What font does Perplexity use on its website?
Perplexity uses PPLX Sans, a custom variable font, for its home page, at unusually light weights between 350 and 470. FK Grotesk Neue, PPLX Serif and Berkeley Mono are loaded for answers and code.
Can I use the Perplexity font?
No. PPLX Sans is proprietary. Inter and Geist are free variable sans serifs that offer the same fine control over weight.
What is a free font similar to PPLX Sans?
Inter and Geist are free on Google Fonts and give a similar feel. No free font is an exact match, so compare it with your own text first.
How can I check what font Perplexity uses myself?
Open perplexity.ai, then click any text with the Font Inspector extension, or right-click, choose Inspect and look at Rendered Fonts in the Computed tab. Sites change their typography, so checking the live page is the only way to be sure.
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