Source Sans 3

Adobe’s OFL UI/workhorse sans (static + variable). Broad Latin coverage for menus, docs overlays, and readable body UI. Reserved Font Name “Source”.

At a glance

Licence: SIL OFL (OFL-1.1)
Commercial use: commercial OK
Credit: Not required
Status: active: License spot-checked at the source; the entry carries dated evidence.
Verified: 2026-08-24 (32d ago)
Formats: OTF, TTF, WOFF

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Notes

Keep OFL.txt with redistributed font files. OFL does not require in-product credits.
Repo ships LICENSE.md (OFL 1.1). Pair with Source Code Pro from Adobe if you need matching mono (separate cut — verify that repo’s OFL).
Don’t sell font files alone; keep license with redistributed binaries

Evidence

Live GitHub adobe-fonts/source-sans: “OFL-1.1 license”
Live LICENSE.md (2026-08-24): “licensed under the SIL Open Font License, Version 1.1.” Copyright 2010–2024 Adobe, Reserved Font Name “Source”.