Head-to-Head: Headless UI React vs react-calendar Analysis


v1.7.17(about 2 months ago)

This package is actively maintained.Types definitions are bundled with the npm packageNumber of direct dependencies: 1Monthly npm downloads

@headlessui/react is a set of completely unstyled, fully accessible UI components for React. It provides a collection of reusable components that you can use to build your own custom UI without any pre-defined styles. This allows for maximum flexibility and customization, as you have full control over the styling and appearance of the components.

Alternatives: Material-UI, Ant Design, Chakra UI

Tags: javascriptreactui-componentsaccessibilitycustomization


v4.6.0(2 months ago)

This package is actively maintained.Types definitions are bundled with the npm packageNumber of direct dependencies: 5Monthly npm downloads

React Calendar is a flexible and customizable calendar component for React applications. It provides a user-friendly interface for displaying and interacting with dates and events. With React Calendar, you can easily navigate between months, select specific dates, and highlight events or appointments.

Alternatives: react-big-calendar, fullcalendar-react, react-datetime

Tags: javascriptreactcalendarcomponentdate



Both @headlessui/react and react-calendar are popular npm packages in the React ecosystem. However, @headlessui/react gained significant popularity due to its powerful and flexible utility components for building accessible UI components. React-calendar is also widely used but focuses specifically on providing a customizable calendar component.


@headlessui/react offers a range of utility components that can be used to build accessible and customizable UI components. It provides features like popover, menu, toggle, and more. On the other hand, react-calendar is designed specifically for creating calendar components with features such as month view, week view, day view, and various customization options.

Developer Experience

@headlessui/react emphasizes developer experience by providing utility components that handle complex accessibility requirements under the hood. It also has good documentation and examples to help developers get started quickly. React-calendar also provides a straightforward API with customizable styling options, making it easy to integrate and use in projects.


@headlessui/react prioritizes accessibility and provides accessible implementation patterns out of the box. It follows best practices for keyboard navigation, focus management, and ARIA attributes. React-calendar also focuses on accessibility but may require additional customization to meet specific accessibility needs.


Both packages offer customization options, but @headlessui/react provides a more flexible and customizable approach as it offers utility components that can be combined and styled to create various UI components. React-calendar provides configurable options for styling the calendar component to match the project's design.


@headlessui/react has minimal dependencies and is designed to be flexible and lightweight. React-calendar may have additional dependencies depending on the specific features and customization options needed.