What's the difference between Lucide, Feather, and Heroicons?

Feather was the pioneer of minimal outline icons but is no longer actively maintained. Lucide is its actively maintained fork with 1500+ icons. Heroicons is by the Tailwind CSS team with both outline and solid variants, designed specifically for Tailwind projects.

Which outline pack has the most icons?

Tabler leads with 5000+ icons, followed by Lucide with 1500+. For a more curated, designer-focused set, Iconoir offers 1500+ carefully crafted icons with a distinctive personality.

Can I adjust the stroke width of outline icons?

Most outline icon packs use SVG stroke properties which can be adjusted via CSS stroke-width. Phosphor Icons (ph) is particularly notable for offering 6 weight variants (thin, light, regular, bold, fill, duotone) per icon.

Free Outline & Line Art SVG Icons – Lucide, Feather, Heroicons & More

Line art and outline icons represent the gold standard of modern UI design. With consistent stroke widths, open shapes, and minimal visual weight, they keep interfaces clean while remaining perfectly legible. These packs are the go-to choice for SaaS platforms, developer tools, dashboards, and any interface where content should take center stage over chrome. Our curated collection features the most popular and well-maintained outline icon libraries, each offering hundreds of carefully crafted icons.

9 icon packs · 15,030 total icons · Free & open source