Design systems
Best free fonts for UI in 2026 (173 components)
Six OFL fonts compared on x-height, tabular figures and weights, plus 173 typography components and 13 variable fonts in the catalogue on 1 November 2026.
Key points
- 173 components in the typography category, 126 monospace and 13 variable fonts as of 1 November 2026.
- Inter, Geist, IBM Plex Sans, JetBrains Mono, Atkinson Hyperlegible and Public Sans are all SIL OFL 1.1.
- A variable font pays off only if you use at least three weights of the same family.
The right font for an interface is chosen on three measurements: x-height, average width and weight count. The EneUI catalogue holds 173 components in the typography category as of 1 November 2026, alongside 126 monospace and 13 variable font entries in separate categories.
Six free fonts that hold up in an interface
| Font | Licence | Weights | Why it works |
|---|---|---|---|
| Inter | SIL OFL 1.1 | 9 weights, variable | high x-height, tabular figures, readable at 14px |
| Geist | SIL OFL 1.1 | Variable | neutral sans, drawn for screens |
| IBM Plex Sans | SIL OFL 1.1 | 7 weights | pairs with Plex Mono for numbers and logs |
| JetBrains Mono | SIL OFL 1.1 | Variable | monospace that stays readable at 12px |
| Atkinson Hyperlegible | SIL OFL 1.1 | 2 weights plus italics | separates I, l and 1 for accessibility |
| Public Sans | SIL OFL 1.1 | 9 weights | neutral, drawn for public interfaces |
Three measurements before you adopt it
- Compare the x-height at 14px: two fonts at the same size do not read the same.
- Check the tabular figures: without them, every table shifts when the numbers change.
- Count the weights: each extra weight is another file to download.
- Test the font at 200% zoom before you call the contrast finished.
Variable fonts: when they actually pay off
A variable font replaces three or four files with one, but the full file weighs more than a single static weight. It pays off if you use at least three weights of the same family; if you use one, the static file stays lighter. The catalogue counts 13 of them across 111,985 components, so it is a clearly identifiable niche.
The command that lists components built around a font
curl "https://ui.eneawork.it/api/vault/items?q=font&limit=5"The limit
The catalogue measures components, not fonts: the 173 typography records do not declare the family they use, so you cannot tell from here which font wins a test. The OFL licence allows commercial use, but it obliges nobody to maintain the font or fix its defects.
Where to continue
Browse the 173 typography components, the 126 monospace and the 13 variable font entries to see how they render on screen. Contrast is measured in measured palette contrast, the dark theme in dark mode without a second design system and the accessible states in the accessible React component checklist. For a comparison of style systems that ship their own fonts, see shadcn/ui vs Tailwind UI.
Frequently asked questions
Which free font works best for an interface?
Inter if you need nine weights and tabular figures; Geist if you want a single neutral variable file.
Can I use an OFL font in a commercial product?
Yes, the SIL Open Font License 1.1 allows commercial use and redistribution inside a product.
Is a variable font better than three static files?
Variable if you use at least three weights of the same family, static if you use only one.
How many typography components does the catalogue hold?
173 in the typography category as of 1 November 2026, plus 126 monospace and 13 variable font entries.
Does the font fix contrast problems?
No, contrast depends on colour and weight: the font changes legibility, not the ratio between colours.