Micro Bold Icons

Micro Bold Icons is a set of 3,894 bold line icons built for small sizes, in 62 topic sets. The stroke is heavy for its size, so a calendar, a phone, a shopping cart or a tiny clock face stays clear at 16 or 20 px, where thin line icons start to break up and blur.

If your interface has a lot of small controls, like tab bars, table rows, filters and status chips, this is the set that holds up. And with 3,894 icons, the odd action you need on day 40 of a project is usually already there.

The style: bold rounded strokes on a 32 px grid

Each icon is drawn on a 32 px grid with a 4 px stroke, which is about a 3 px line at 24 px. That's noticeably heavier than the usual 1.5 or 2 px icon, and it's what keeps the shapes solid on low density screens and in dark mode. Line ends and corners are round, so the weight never feels harsh.

Shapes are simplified for the small canvas. A camera is a body and a lens, a clock is a circle and two hands, and inner details are only kept where they still read. A few icons use small white shapes for highlights.

The strokes are live, so you can drop them to 3 px for a lighter version or recolour the whole icon with one setting.

What is inside the 3,894 icons

There are 62 sets, and several of them are unusually deep, with 90 to 100 icons covering every variation of one idea:

• Interface staples: 100 arrows, 100 message and email icons, 98 calendar and date icons, 90 clocks and a UI essentials set

• Devices: smartphones, laptops, computers, telephones and photography, each with dozens of states

• Files and data: files, folders, clipboards, cloud data, databases and servers

• Business and money: finance, money, currencies, office, employees, marketing, shopping and packages

• Life and nature: animals, insects, weather, ecology, farming, yoga, sport, beach and camping

The rest covers health and hospitals, medical equipment, dental care, anatomy, fashion for men and women, cosmetics, furniture, kitchen tools, automotive, travel, design tools and holidays like Christmas and Halloween.

Who it is for

Mobile app teams get the most from Micro Bold. Tab bars, list items, settings rows and small buttons all live at 16 to 24 px, and that's the size this set was drawn for. The deep smartphone, message, calendar and time sets cover most of a typical app's screens.

Dashboards and data heavy web apps benefit too. Bold icons stay readable in dense tables and sidebars, and they hold their own next to bold UI text and coloured status badges.

The heavier line also suits signage, wayfinding and printed forms, anywhere an icon has to read from a distance or at a small print size.

How to use it

In Figma, paste the SVG and set the stroke to your text colour so the icons match your labels. The GetIllustrations Figma plugin lets you search all 3,894 icons and drop them into your components.

In code, use the SVG inline and set the stroke to currentColor, then size the icons at 16, 20 or 24 px. Because the line is bold, they also work well as filled feeling icons on coloured buttons. For a quick colour change without a design tool, use the SVG colour editor.

A tip: these are drawn on a 32 px grid, so 16 px and 32 px land the strokes on whole pixels and look the crispest.

Formats and technical details

All 3,894 icons come in every format you need:

• SVG with live strokes, for web, apps and Figma

• PNG at 512 and 1024 px with a transparent background

• AI, the original Adobe Illustrator files, one per set with every icon on its own artboard

• An Iconjar library for browsing and dragging icons on a Mac

Licence

The commercial licence covers personal and client projects, websites, apps, presentations, marketing, social media, print and video. You can recolour, resize and edit the icons, and use them in products you sell such as templates and themes, up to 500 of our assets per product.

You can't resell or share the icon files on their own, or use them to train AI models. Credit is welcome but not required, and the full terms are on the licence page.

Pairs well with

Mini Bold Line Icons Vol 2 has the same small size focus with a square, sharp cornered line, and Solid Bold Icons is the filled counterpart for active states and buttons. If you want a softer, thinner line for larger sizes, Curvy Icons fits well beside them.le.