Icons are one of those design elements that look simple but make a surprisingly large difference to a finished website. The right icon set reinforces your visual identity, improves navigation clarity, and adds polish to interfaces that would otherwise feel flat. The wrong icons — mismatched styles, inconsistent stroke weights, clip-art-era metaphors — undermine even well-designed layouts.
The good news is that the free icon landscape in 2026 is genuinely excellent. There are enough high-quality, commercially licensed icon sets available at no cost that you rarely need to buy icons for standard web design work. Here are the sites I actually use.
The Best Free Icon Websites
1. Heroicons
heroicons.com
Heroicons is a set of 292 free SVG icons designed by the team at Tailwind Labs (the people behind Tailwind CSS). Available in two styles — outline and solid — the icons are exceptionally consistent, beautifully drawn, and optimised for use at small sizes in interfaces. They’re MIT licensed, meaning free for both personal and commercial use with no attribution required.
If you only bookmark one icon resource from this list, make it Heroicons. The quality is professional, the licence is clean, and the two-style system (outline for UI, solid for emphasis) is genuinely useful design thinking baked into the set itself.
Styles: Outline, Solid, Mini
Licence: MIT (free commercial use)
Format: SVG, also available as React/Vue components
Best for: UI icons, navigation icons, interface elements, web applications
2. Phosphor Icons
phosphoricons.com
Phosphor is a flexible icon family with over 1,200 icons available in six styles: Thin, Light, Regular, Bold, Fill, and Duotone. The breadth of styles makes it unusually versatile — you can match the icon weight to your typography and layout rather than being locked into one visual treatment. MIT licensed and available as SVG, icon font, and component packages for major frameworks.
The Duotone style deserves special mention — two-tone icons that add a subtle visual richness without becoming decorative. Useful for feature sections, pricing tables, and anywhere you want icons to add visual interest beyond pure utility.
Styles: Thin, Light, Regular, Bold, Fill, Duotone
Licence: MIT (free commercial use)
Format: SVG, icon font, React/Vue/Angular components
Best for: Projects requiring visual flexibility, feature sections, duotone treatments
3. Lucide
lucide.dev
Lucide is a community-maintained fork of Feather Icons with significantly expanded coverage — over 1,400 icons. It retains Feather’s clean, consistent outline style (2px stroke, rounded caps and joins) while adding hundreds of icons that Feather never covered. ISC licensed (effectively MIT), free for any use.
The consistency of the set is its main strength — every icon was drawn to the same grid and stroke rules, so mixing icons from across the set never produces the “different designers drew these” inconsistency you get with looser collections.
Styles: Outline only
Licence: ISC (free commercial use)
Format: SVG, component packages
Best for: UI icons requiring strict visual consistency, minimal interfaces
4. Iconoir
iconoir.com
Iconoir is a large free SVG icon library with over 1,600 icons in a clean outline style. It covers a broader range of categories than many sets — including icons for maps, sports, technology, people, and nature — making it useful for more varied design contexts. MIT licensed.
Styles: Outline, Solid
Licence: MIT (free commercial use)
Format: SVG, React/Vue/Flutter/CSS components
Best for: Projects needing broad category coverage, apps with diverse icon requirements
5. Tabler Icons
tabler-icons.io
Tabler Icons is one of the largest free icon sets available, with over 5,000 icons in outline, filled, and outline-colour styles. MIT licensed. The sheer breadth means you’re unlikely to need a specific icon that Tabler doesn’t cover. Quality is consistent throughout and the search is fast and reliable.
Styles: Outline, Filled, Outline Colour
Licence: MIT (free commercial use)
Format: SVG, icon font, component packages
Best for: Large projects needing comprehensive coverage, when other sets don’t have the specific icon you need
6. Feather Icons
feathericons.com
Feather is the original minimalist SVG icon set — 287 icons, each drawn on a 24×24 grid with a consistent 2px stroke. It inspired Lucide and several other sets. Feather itself is no longer actively maintained, but the existing icons are near-perfect for their purpose and it remains widely referenced. MIT licensed.
Best for: Clean, minimal interface icons; projects using older codebases that already depend on Feather
7. Bootstrap Icons
icons.getbootstrap.com
Bootstrap Icons is the official icon library from the Bootstrap framework team. Over 2,000 icons in outline and fill styles, MIT licensed. Designed to work alongside Bootstrap but equally usable in any project. The set is comprehensive, well-maintained, and updated regularly.
Styles: Outline, Fill
Licence: MIT (free commercial use)
Format: SVG, icon font, npm package
Best for: Bootstrap projects; general use where you want a large, maintained, MIT-licensed set
8. Remix Icon
remixicon.com
Remix Icon is a set of 2,800+ neutral-style icons for designers and developers. Available in line and fill versions, the icons cover a broad range of categories including media, system, finance, communication, and development. Apache 2.0 licensed — free for personal and commercial use.
Best for: Product design, dashboards, apps with diverse icon requirements
9. Google Material Symbols
fonts.google.com/icons
Google’s Material Symbols is the updated, variable font version of Material Icons — over 3,000 icons in five styles (outlined, rounded, sharp, filled, two-tone) with variable weight, fill, grade, and optical size axes. Apache 2.0 licensed.
The variable font implementation is technically clever — you can continuously adjust weight and fill rather than choosing between discrete style variants. More useful for Google-ecosystem products and Material Design implementations than for general web design, where the aesthetic reads distinctly “Google.”
Best for: Android apps, Google product integrations, Material Design projects
10. Font Awesome (Free Tier)
fontawesome.com
Font Awesome is probably the most widely deployed icon set on the internet — you’ve seen its icons on thousands of websites. The free tier includes around 2,000 icons covering the most common UI needs. The Pro tier (paid) extends to 26,000+ icons.
The free tier is CC BY 4.0 licensed (attribution required for the icons themselves, though not when used as web fonts). The main limitation is that the free set is heavily biased towards the solid and regular styles — the broader, more polished styles are paywalled. Font Awesome works fine for standard UI needs; it’s become less of a first choice as cleaner, attribution-free sets have matured.
Best for: Quick implementations where the broad free set is sufficient; legacy projects already using it
For More Specific Needs
Simple Icons
simpleicons.org
Simple Icons is a collection of 3,000+ brand/logo icons — social media platforms, technology tools, frameworks, companies — all in a consistent flat style with official brand colours documented alongside each icon. CC0 licensed (public domain). Invaluable when you need to reference a technology stack, show social media links, or display partner logos.
Devicons
devicon.dev
Devicons specialises in technology and programming language icons — JavaScript, Python, React, WordPress, Figma, Docker, and hundreds more. MIT licensed. Useful for agency and freelancer sites that list their technology expertise, or for developer portfolio sites.
Flaticon
flaticon.com
Flaticon has one of the largest icon libraries available with millions of icons across diverse styles. The free tier requires attribution; the premium tier removes that requirement. The quality varies significantly — you need to filter carefully to find consistent, high-quality sets rather than grabbing icons from multiple mismatched collections.
Note on attribution: Check the specific licence for each icon or set you use on Flaticon. Some are free for commercial use without attribution; others require a credit link. The premium subscription (around £8/month) removes attribution requirements across the board if you use Flaticon regularly.
How to Choose the Right Icon Set for Your Project
With this many options available, the most common mistake is mixing icons from different sets — ending up with Heroicons for navigation, Font Awesome for social links, and random Flaticon icons for features. The visual inconsistency is immediately apparent to anyone who looks closely at the finished site.
A few practical principles:
- Choose one primary icon set per project and stick to it. Pick the set that best matches your typography and overall design tone, then use only that set throughout the project. Visual consistency matters more than having the “perfect” icon for every use case.
- Match icon style to design personality. Thin, outline icons (Lucide, Heroicons outline) suit minimal, typographic designs. Filled, bold icons suit designs with stronger visual weight and colour. Duotone icons suit designs where you want to add visual interest to feature sections.
- Check the licence before delivery. Most sets listed here are MIT or Apache 2.0 — effectively free for any commercial use without attribution. Flaticon and some others have more complex licence requirements. Confirm the licence before using icons in a commercial client project.
- Use SVG, not icon fonts, for modern projects. SVG icons are sharper, more accessible, easier to customise with CSS, and faster to load than icon fonts. Icon fonts (like the original Font Awesome web font implementation) are a legacy approach that new projects shouldn’t be starting with in 2026.
- Size icons appropriately. Most icon sets are designed for 24×24px use. Using them at 64×64 or larger without adjustment often reveals limitations in the original drawing. If you need large illustrative icons, look for sets specifically designed for larger use (or consider custom illustration).
Frequently Asked Questions
Are free icons safe to use commercially?
Most icons listed here are MIT or Apache 2.0 licensed — which means yes, you can use them in commercial projects without attribution and without cost. Always check the specific licence of the set you’re using. Flaticon in particular has a more complex licence structure where some icons require attribution on the free tier.
What format should I use for icons on websites?
SVG (Scalable Vector Graphics) is the correct format for icons on modern websites. SVGs are resolution-independent (they look sharp at any size and on any screen density), small in file size, and can be styled and animated with CSS. Avoid PNG icons for UI elements — they look blurry on high-density displays and can’t be easily recoloured.
What’s the difference between an icon set and an icon font?
An icon set is a collection of individual SVG files. An icon font packages icons as glyphs within a font file, accessed via CSS classes. Icon fonts were popular around 2012–2018 (Font Awesome pioneered this approach) but have largely been superseded by SVG icons for new projects. SVGs are more accessible, easier to customise, and better for performance.
How do I add icons to a WordPress website?
The most practical approach for most WordPress websites is to download the SVG files you need and either upload them directly as images or inline them in your HTML/page builder blocks. Most modern WordPress page builders (Elementor, Bricks, Kadence) have icon picker integrations that include popular icon sets, or allow you to upload custom SVGs. For site-wide icon consistency, a plugin like Icon Picker or custom code implementation works well.
Good Tools Alongside Good Icons
Icons are one piece of the visual system — typography and colour are the other two major pillars of web visual design. Getting all three working together consistently is what separates a professionally finished website from one that looks assembled rather than designed.
If you’re planning a new website and want to see what a properly designed, visually coherent site looks like for your business, I offer a free, no-obligation homepage mockup. Or get in touch to discuss your project.
