coderef

font-synthesis-small-capsBaseline · Widely available

The font-synthesis-small-caps CSS property sets whether or not the browser should synthesize small caps typefaces when they're missing from the font.

Supported in all major browsers for at least 30 months — safe to use without fallbacks. Baseline since Mar 27, 2023. Widely available since Sep 27, 2025.

How to use ↓Compare browsers

Browser support

DesktopChrome
1–96Not supported
97+Supportedsince Jan 4, 2022
Current: 155
Edge
12–96Not supported
97+Supportedsince Jan 6, 2022
Current: 154
Firefox
1–110Not supported
111+Supportedsince Mar 14, 2023
Current: 157
Safari
1–16.3Not supported
16.4+Supportedsince Mar 27, 2023
Current: 27
MobileChrome Android
18–96Not supported
97+Supportedsince Jan 4, 2022
Current: 155
Firefox Android
4–110Not supported
111+Supportedsince Mar 14, 2023
Current: 157
Safari iOS
1–16.3Not supported
16.4+Supportedsince Mar 27, 2023
Current: 27

How to use

This feature is Baseline widely available — use it freely, no fallback needed.

Example

Full syntax and examples are on MDN: font-synthesis-small-caps.

Feature detection

CSS · check before using
@supports (font-synthesis-small-caps: initial) {
  /* styles that rely on font-synthesis-small-caps */
}

/* or in JavaScript */
if (CSS.supports("font-synthesis-small-caps", "initial")) {
  // use it
}

Documentation (MDN)

Specification

Sub-features

Support for each part of the feature (3). The overall table above shows when the whole feature works.

Sub-featureChromeEdgeFirefoxSafariChrome AndroidFirefox AndroidSafari iOS
font-synthesis-small-caps979711116.49711116.4
font-synthesis-small-caps.auto979711116.49711116.4
font-synthesis-small-caps.none979711116.49711116.4