Code

Styling and UI kits

8 technologies: what each one does, whether it is SaaS or open source, its price range and its website.
  • Tailwind CSS

    690.6K sitesOpen source

    Tailwind is a utility-first CSS framework for rapidly building custom user interfaces.

    Used byCal.com,Creditas,Documenso,Dub+3

  • Radix UI

    177K sitesOpen source

    Radix UI is a React-based user interface component library that offers accessible, responsive, and customisable components for building web applications.

  • shadcn/ui

    115.7K sitesOpen source

    shadcn/ui is a component system built with Radix UI and Tailwind CSS.

    Used byCreditas,Documenso

  • MUI

    65K sitesSaaSOpen sourceFreemium · Pay as you go

    MUI(formerly Material UI) is a simple and customisable component library to build faster, beautiful, and more accessible React applications.

  • Chakra UI

    9.1K sitesOpen source

    Chakra UI is a simple, modular and accessible component library that gives you the building blocks you need to build your React applications.

  • Sass

    1.3K sitesOpen source

    Sass is an extension of CSS that enables you to use things like variables, nested rules, inline imports and more.

  • daisyUI

    212 sitesOpen source

    daisyUI is a customisable Tailwind CSS component library that prevents verbose markup in frontend applications. With a focus on customising and creating themes for user interfaces, daisyUI uses pure CSS and Tailwind utility classes, allowing developers to write clean HTML.

  • React Email

    Open source

    Write emails as React components that render well in every inbox.

    Used byDocumenso,Resend

Data from the open Wappalyzer database (enthec/webappanalyzer, GPL-3.0), updated every week. Site counts from the HTTP Archive (September 2026). Code tools (frameworks, build, ORMs…) come from a list kept by Faundr.