Material Symbols
Google’s adaptable Material symbol library with outlined, rounded, sharp, filled and variable-style naming variants.
Fluent UI System Icons
Microsoft’s modern Fluent interface icon collection with regular and filled variants across many UI sizes.
Phosphor Icons
A flexible icon family with thin, light, regular, bold, fill and duotone variants for interfaces and products.
Tabler Icons
A large, consistent MIT-licensed SVG icon set built around a clean 24px outline style.
Hugeicons Free
Thousands of free open-source interface symbols with a clean stroke system for modern apps and websites.
MingCute Icons
A polished open-source icon set with filled and line variants for product and interface design.
Bootstrap Icons
The official open-source icon library from Bootstrap, designed for web interfaces and developer workflows.
Lucide Icons
A community-maintained open-source SVG icon toolkit with a consistent 24px stroke style.
Iconoir
A large open-source icon library with lightweight geometry for web, mobile and product interfaces.
Simple Icons
Open-source SVG brand marks for popular companies, services and technologies. Brand and trademark rules may still apply.
Devicon
Open-source programming language, framework, tool and platform icons with monochrome and color variants. Brand and trademark rules may still apply.
How to choose an icon collection.
Match the family to the product’s tone. A thin outline can feel lighter beside text; filled symbols are often easier to recognise at small sizes. Compare the same few actions before committing to a large set.
Look at variants as well as total file count. Filled, rounded, sharp, size-specific and weight variations can represent the same concept. A collection’s file count describes available SVGs rather than an equal number of distinct subjects.
Keep one primary system for related controls. Mixing several grids and stroke systems can make equally sized icons appear inconsistent. Check the original project’s licence and implementation guidance before distributing a finished icon pack.