serif

Source Serif 4

Source Serif 4

Adobe's transitional serif companion to Source Sans, redrawn for the screen with an optical-size axis. Variable font with weight and optical-size — pick it for long-form reading, editorial, and documentation where a neutral serif is required.

Aa Bb Cc

The quick brown fox jumps over 13 lazy dogs.

ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz

0123456789 — • · → ← ⇄ ✓ ✗ ! ? & @ # $ %

Weights & styles

200
ExtraLight
The quick brown fox The quick brown fox
300
Light
The quick brown fox The quick brown fox
400
Regular
The quick brown fox The quick brown fox
500
Medium
The quick brown fox The quick brown fox
600
SemiBold
The quick brown fox The quick brown fox
700
Bold
The quick brown fox The quick brown fox
800
ExtraBold
The quick brown fox The quick brown fox
900
Black
The quick brown fox The quick brown fox

Source & fallback

Source

Kind
google-fonts
Family
Source Serif 4
URL
https://fonts.googleapis.com/css2?family=Source+Serif+4:ital,opsz,wght@0,8..60,200..900;1,8..60,200..900&display=swap

Fallback stack

  1. Source Serif 4 primary
  2. Iowan Old Style fallback 1
  3. Apple Garamond fallback 2
  4. Baskerville fallback 3
  5. Times New Roman fallback 4
  6. serif fallback 5

Provenance

Source
https://fonts.google.com/specimen/Source+Serif+4
License
OFL-1.1
Attribution
Source Serif 4, Copyright 2014–2021 Adobe (https://www.adobe.com/), with Reserved Font Name "Source", licensed under the SIL Open Font License, Version 1.1.
Imported
2026-05-17