280 minimal open-source icons on a strict 24×24 grid.
Why we recommend it
A small, deliberately restrained set with unusually consistent stroke weight — it's the ancestor of several later icon systems and still holds up for clean interfaces.
Strengths
- Very consistent 2px stroke across the whole set
- Tiny footprint
- MIT licence, no attribution required
Drawbacks
- Development has slowed considerably
- Only ~280 icons — you will hit gaps
- Lucide is an actively maintained fork worth considering instead
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