Live tester
Tester · type to test
Drag sliders, type your own sample. Variable axes update continuously; static faces snap to nearest available weight.
Weights
Italic
The italic does the warmth.
Body — 18 px in the face
A book serif that looks like itself at every scale — the optical size axis is real, not interpolated, so the same family that handles 14px body sets a 96px display headline without looking like a body face stretched too far. The lab uses it for body copy across editorial, clinical, and studio.
Glyphs
ABCDEFGHIJKLMNOPQRSTUVWXYZ
abcdefghijklmnopqrstuvwxyz
0123456789.,;:!?@#$&*()«»“”—
Pairs with
Source Serif 4
paired with IBM Plex Mono — running text would set comfortably at this size, mid-size for captions or short paragraphs sitting next to the display family above.
Source Serif 4
paired with Inter — running text would set comfortably at this size, mid-size for captions or short paragraphs sitting next to the display family above.
Source Serif 4
paired with Inter Tight — running text would set comfortably at this size, mid-size for captions or short paragraphs sitting next to the display family above.
- FAMILY
- Source Serif 4
- FOUNDRY
- Adobe
- WEIGHTS
- 200, 300, 400, 500, 600, 700, 800, 900
- STYLES
- normal, italic
- LICENSE
- SIL OFL 1.1
- TAGS
- serif · editorial · body · optical-size
- LINKS
- Foundry page ↗
Adobe · SIL OFL 1.1
Embedcss
@import 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');