Best UI Kit Libraries in 2026
Updated
In short: Carbon Design System is ranked #1 of 26 as of 3 October 2026, ahead of Untitled UI and Clarity Design System. The best-ranked option with a free plan is Untitled UI.
Reusable components can help teams create consistent interfaces across design and implementation. Compare component count, responsive components and accessibility guidance, and check whether each library is design-system ready. License scope and primary asset format affect how a kit may fit your workflow; free-plan availability and paid-from pricing add practical comparison points. Carbon Design System and Clarity Design System open the ranking, followed by MUI and Adobe Spectrum. Consider the listed components and guidance alongside the tools and implementation approach your team already uses.
26 UI kit libraries ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
| # | Platform | Score | Why | From | Free plan | Paid from | Component count | |
|---|---|---|---|---|---|---|---|---|
| 1 | Carbon Design System | 6.0 | RecognisedAPIDocumented | Free | Yes | — | — | View |
| 2 |  Untitled UI | 6.0 | RecognisedAPIDocumented | Free | Yes | 129 one-time | 10,000 | View |
| 3 | Clarity Design System | 5.9 | RecognisedAPIDocumented | Free | Yes | — | — | View |
| 4 |  Material Design for Bootstrap | 5.9 | RecognisedAPIDocumented | Free | Yes | — | — | View |
| 5 |  Shadcn Studio Figma UI Kit | 5.9 | RecognisedAPIDocumented | Free | Yes | — | — | View |
| 6 |  UI Prep Design System | 5.9 | RecognisedAPIDocumented | Free | Yes | 99 one-time | — | View |
| 7 | GOV.UK Design System | 5.8 | RecognisedAPIDocumented | Free | Yes | — | — | View |
| 8 | Adobe Spectrum | 5.5 | RecognisedAPIDocumented | — | — | — | — | View |
| 9 |  Figma Simple Design System | 5.5 | RecognisedAPIDocumented | — | Yes | — | — | View |
| 10 |  Flowbite Figma Design System | 5.5 | RecognisedAPIDocumented | — | Yes | — | — | View |
| 11 |  Material 3 Design Kit | 5.5 | RecognisedAPIDocumented | — | Yes | — | — | View |
| 12 |  react-md | 5.5 | RecognisedAPIDocumented | — | Yes | — | — | View |
| 13 | Angular Material | 5.4 | RecognisedAPIDocumented | — | Yes | — | — | View |
| 14 | Ant Design Icons | 5.4 | RecognisedAPIDocumented | — | Yes | — | — | View |
| 15 |  jQWidgets | 5.4 | RecognisedAPIDocumented | — | Yes | — | — | View |
| 16 | Shopify | 5.4 | RecognisedAPIDocumented | — | No | — | — | View |
| 17 |  Figma Wireframe Kit | 5.3 | RecognisedAPIDocumented | — | Yes | — | — | View |
| 18 | MUI | 5.3 | RecognisedAPIDocumented | — | Yes | — | — | View |
| 19 |  Automattic Design System | 5.1 | RecognisedAPIDocumented | — | — | — | — | View |
| 20 | Lightning Design System | 5.1 | RecognisedAPIDocumented | — | — | — | — | View |
| 21 |  Singapore Government Design System | 5.1 | RecognisedAPIDocumented | — | — | — | — | View |
| 22 | U.S. Web Design System | 5.1 | RecognisedAPIDocumented | — | — | — | — | View |
| 23 |  Figkit | 5.0 | RecognisedAPIDocumented | — | No | 59 one-time | 94 | View |
| 24 |  Frames X | 5.0 | RecognisedAPIDocumented | — | No | 47 one-time | — | View |
| 25 | GitHub Primer | 5.0 | RecognisedAPIDocumented | — | — | — | — | View |
Is your platform on this list?
Numbered spots on this list can be sponsored. They are labelled, and the editorial order and scores never change for payment.
Questions about this list
Which UI kit librarie is ranked first on Inferse?
Carbon Design System is ranked #1 of 26 with a score of 6.0. Untitled UI is second and Clarity Design System third.
How many of these have a free plan?
7 of the 25 on this page publish a free plan on their own pricing pages.
How is this list ranked?
Ranked on what each maker publishes, open and connectable first: a public API, open-source code, the depth of its documentation and a free tier to try it on. Model lists are sorted by the figure in their title, exactly as each provider publishes it. Paid placements never change a rank.