Install FontSwap
Source Sans Pro
About Source Sans Pro
- Source
- Google Fonts ↗
- Classification
- sans-serif
- Weights
- Variable (100-900)
- Features
- Variable, Italics
Free to use, modify, and distribute. Can be used commercially without attribution.
What's allowed?
- ✓ Client work
- ✓ SaaS / Web apps
- ✓ YouTube / Video
- ✓ Sell products
- ✓ Print materials
Note: Derivative fonts must use the same license.
Full license guide →Source Sans Pro is Adobe's first open-source typeface family, designed by Paul D. Hunt and released in 2012. It was created specifically for user interface design while maintaining excellent readability for body text.
History and Design
Paul D. Hunt designed Source Sans Pro as part of Adobe's commitment to open-source typography. The design draws inspiration from American gothic typefaces like Franklin Gothic while incorporating the clarity needed for modern digital interfaces. In 2023, Adobe released Source Sans 3, a variable font update with enhanced features.
The typeface balances warmth and neutrality, avoiding the clinical feel of Helvetica while maintaining professional utility. Its generous x-height and open apertures ensure excellent legibility on screen.
Why Source Sans Pro Matters
Source Sans Pro established Adobe's open-source type library, which has grown to include Source Serif Pro, Source Code Pro, and numerous other families. Its success demonstrated that high-quality professional typefaces could thrive under open-source licensing, influencing the entire industry.
The typeface is particularly valued in government and public sector projects, where open licensing aligns with accessibility mandates. The U.S. Web Design System recommends Source Sans Pro for federal websites.
Technical Features
- Variable font: Source Sans 3 offers continuous weight axis
- Extended family: Matches with Source Serif Pro and Source Code Pro
- Superior language support: Latin, Cyrillic, Greek extended
- OpenType features: Small caps, tabular figures, fractions
Best Use Cases
Source Sans Pro excels in:
- User interfaces: Designed specifically for UI applications
- Government and public sector: Open licensing meets accessibility requirements
- Documentation: Pairs naturally with Source Code Pro for technical docs
- Corporate communications: Professional without being cold
Usage Tips
Use weight 400 for body text and 600-700 for headings. For technical documentation, pair with Source Code Pro for code examples. Consider Source Sans 3 variable font for more flexibility. The typeface works well at sizes from 12px to display, making it versatile across applications.
Is Source Sans Pro on Google Fonts?
Yes, Source Sans Pro is available for free on Google Fonts. Get Source Sans Pro on Google Fonts ↗
Alternative For (15)
Source Sans Pro is a free alternative to the following premium fonts:
Clean neo-grotesque with comparable professional utility
Comparable weight range with neo-grotesque refinement
Adobe's humanist sans with comparable neutrality and readability
Adobe's open-source counterpart with similar design philosophy
Adobe's humanist sans with excellent readability
Adobe's open-source alternative with comparable weight range and clarity
Shares emphasis on digital legibility with humanist proportions
Compare Source Sans Pro
See how Source Sans Pro compares to other fonts side by side.
Variable Font Axes
Source Sans Pro is a variable font with 1 axis you can fine-tune.
| Axis | Min | Default | Max |
|---|---|---|---|
| wght | 200 | 400 | 900 |
Font Pairings
Fonts that pair well with Source Sans Pro based on contrast and complementary design characteristics.
Performance
Key metrics for evaluating Source Sans Pro in production.
Font Metrics
Fallback CSS Overrides
Apply these overrides to Arial to minimize layout shift when loading Source Sans Pro.
@font-face {
font-family: 'Source Sans Pro Fallback';
src: local('Arial');
ascent-override: 75%;
descent-override: 25%;
line-gap-override: 0%;
size-adjust: 93.72%;
}How to Use Source Sans Pro
Copy these code snippets to quickly add Source Sans Pro to your project.
CSS code for Source Sans Pro
@import url('https://fonts.googleapis.com/css2?family=Source+Sans+Pro:wght@100..900&display=swap');HTML code for Source Sans Pro
<link rel="preconnect" href="https://fonts.googleapis.com">
<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
<link href="https://fonts.googleapis.com/css2?family=Source+Sans+Pro:wght@100..900&display=swap" rel="stylesheet">Tailwind code for Source Sans Pro
// tailwind.config.js
module.exports = {
theme: {
extend: {
fontFamily: {
'source-sans-pro': ['"Source Sans Pro"', 'sans-serif'],
},
},
},
}
// Usage in HTML:
// <p class="font-source-sans-pro">Your text here</p>Next.js code for Source Sans Pro
// Using next/font (Next.js 13+)
import { Source_Sans_Pro } from 'next/font/google';
const source_sans_pro = Source_Sans_Pro({
subsets: ['latin'],
weight: ['100', '200', '300', '400', '500', '600', '700', '800', '900'],
});
export default function Component() {
return (
<p className={source_sans_pro.className}>
Your text here
</p>
);
}
// Or using inline styles with Google Fonts link:
// <p style={{ fontFamily: '"Source Sans Pro"' }}>Your text</p>Expo and React Native code for Source Sans Pro
// Install: npx expo install @expo-google-fonts/source-sans-pro expo-font
import { useFonts, Source_Sans_Pro_400Regular } from '@expo-google-fonts/source-sans-pro';
export default function App() {
const [fontsLoaded] = useFonts({
Source_Sans_Pro_400Regular,
});
if (!fontsLoaded) return null;
return (
<Text style={{ fontFamily: 'Source_Sans_Pro_400Regular' }}>
Your text here
</Text>
);
}