How to Find Free Icons for Your Website: 10 Sources

Icons are the visual shorthand of web design. They guide users, save space, and add polish without weighing down a page. But finding good free icons for website projects means navigating licenses, formats, and quality — and not every "free" source is actually free to use commercially. This guide covers ten reliable sources, the format tradeoffs, and what to check before you ship.

Why Icons Matter for Web Design

A well-placed icon communicates faster than text. A trash can means delete. A magnifying glass means search. Users recognize these patterns instantly, which reduces cognitive load and speeds up navigation. Icons also break up text-heavy layouts and work across language barriers.

The catch is consistency. Mixing icons from five different sets looks amateur. Pick one source that covers your needs and stick with it, or choose sets with matching stroke widths and corner radii.

10 Sources for Free Icons for Website Projects

These sources range from open-source libraries to commercial free tiers. All are widely used and have clear licenses.

1. Feather Icons

Feather is a set of 287 clean, open-source icons with a consistent 2px stroke. It's MIT licensed, which means you can use it anywhere with no attribution required. The style is minimal and works well for modern dashboards and SaaS interfaces.

2. Heroicons

Built by the Tailwind CSS team, Heroicons offers 300+ icons in outline and solid variants. MIT licensed. They pair naturally with Tailwind projects but work anywhere. The outline set uses a 1.5px stroke — slightly thinner than Feather.

3. Font Awesome

Font Awesome's free tier includes 2,000+ icons across solid, regular, and brand categories. It's distributed as an icon font and SVG, and uses the CC BY 4.0 license, which requires attribution. The brand icons (GitHub, Twitter, etc.) are handy for social links.

4. Material Symbols

Google's Material Symbols (the successor to Material Icons) is a massive set of 2,500+ icons with variable axes for weight, grade, and optical size. Apache 2.0 licensed. It's the default look for Android apps and Google's own products, so it reads as familiar to most users.

5. Lucide

Lucide is a community-driven fork of Feather with 1,500+ icons. It keeps the same clean stroke style but fills in the gaps Feather left. ISC licensed (essentially MIT). If Feather doesn't have the icon you need, Lucide probably does.

6. Tabler Icons

Tabler Icons is a set of 5,700+ icons with a consistent 2px stroke, MIT licensed. The breadth is impressive — it covers niche categories like medical, logistics, and finance that smaller sets miss. Each icon comes as SVG and PNG.

7. Phosphor Icons

Phosphor offers 9,000+ icons across six weights (thin, light, regular, bold, fill, duotone). MIT licensed. The weight flexibility lets you match the icon style to your typography and overall visual weight.

8. Remix Icon

Remix Icon is a set of 2,800+ icons in two styles (line and fill), Apache 2.0 licensed. It's popular in Chinese web design communities but works for any project. The set includes a wide range of categories including maps, media, and finance.

9. Bootstrap Icons

Bootstrap Icons is a set of 2,000+ icons designed by the Bootstrap team. MIT licensed. The style is geometric and slightly heavier than Feather, which works well for buttons and navigation in dense interfaces.

10. Iconoir

Iconoir is a growing set of 1,500+ icons with a distinctive look — slightly rounded, consistent stroke. MIT licensed. It's a good choice if you want something that doesn't look like every other Feather-derived set.

SVG vs PNG vs Icon Fonts

The format you choose affects performance, maintainability, and flexibility.

SVG is the best default for web icons. It's vector-based, scales without quality loss, can be styled with CSS, and typically weighs under 1KB per icon. You can inline it directly in HTML or reference it as a file. For a deep comparison, see our guide on SVG vs PNG icons.

PNG is raster — it's fixed to a pixel size. You need multiple files for different resolutions (1x, 2x, 3x), and you can't recolor it with CSS without generating new files. Use PNG only when SVG isn't supported, which is rare in modern browsers.

Icon fonts package many icons into a single font file. They're easy to use (<i class="fa-search"></i>) but have downsides: you load every icon even if you use three, they render as text (so they can have accessibility quirks), and they're harder to style precisely than inline SVG.

For most projects, inline SVG is the right call. You can browse and copy SVG icons directly from the Keynou icons library.

License Considerations

"Free" doesn't always mean unrestricted. Before using any icon set, check the license:

• MIT / ISC / Apache 2.0 — Use commercially, modify freely, no attribution required. These are the most permissive and the easiest to work with.
• CC BY 4.0 — Commercial use allowed, but you must give attribution. Font Awesome's free tier falls here. You typically add a credit in your site footer or about page.
• CC BY-NC — Non-commercial only. Avoid these for business sites or anything monetized.

When in doubt, read the license page on the source's site. A few minutes of checking saves you from a takedown notice later.

Customizing Icons for Your Brand

Free icons rarely match your brand colors out of the box. SVG icons are easy to recolor — change the fill or stroke attribute, or target them with CSS. You can match exact hex values using a color wheel to pick complementary shades, then apply them consistently across your icon set.

For more complex shapes, a clipPath editor lets you define custom crop regions for decorative effects. And if you're working with a mixed set, our guide on customizing icon colors walks through batch recoloring techniques.

Wrapping Up

Finding free icons for website work is straightforward once you know where to look and what to check. Stick with permissively licensed sets (MIT, ISC, Apache 2.0) to avoid attribution headaches, choose SVG for flexibility, and keep your icon style consistent across the whole project. Browse the Keynou icons library to grab SVGs you can drop straight into your codebase, and check our SVG vs PNG icons guide for more on format tradeoffs.