Design Philosophy
- vuetify: 
vuetifyis inspired by Material Design principles, which prioritize bold colors, clean lines, and intuitive interactions. It aims to provide a modern and visually striking set of components that are highly customizable while adhering to accessibility standards. - bootstrap-vue: 
bootstrap-vueis built on the foundation of Bootstrap, which is known for its simplicity, responsiveness, and utility-first approach. It aims to provide a straightforward implementation of Bootstrap components in Vue.js, making it easy for developers to create responsive layouts and interfaces quickly. - ant-design-vue: 
ant-design-vuefollows the Ant Design specification, which emphasizes a clean, professional, and consistent design language. It is particularly focused on providing a cohesive experience for enterprise applications, with attention to detail in typography, spacing, and component behavior. - element-ui: 
element-uiis designed with a focus on clarity and usability, providing a set of components that are both visually appealing and functional. It is particularly popular in the Chinese market and is tailored for applications that require a more traditional desktop interface. 
Component Variety
- vuetify: 
vuetifyboasts one of the most extensive collections of Material Design components, including everything from basic UI elements to complex data visualization tools. It also supports features like grid layouts, responsive design, and customizable themes out of the box. - bootstrap-vue: 
bootstrap-vueincludes a wide range of components that cover the essentials, such as buttons, modals, and forms, along with layout utilities. However, it may not have as many specialized components as some other libraries, as it focuses on implementing Bootstrap’s core features in Vue. - ant-design-vue: 
ant-design-vueoffers a comprehensive suite of components, including advanced data visualization tools, form controls, and navigation elements. It also provides a rich set of APIs for customization and theming, making it suitable for complex applications. - element-ui: 
element-uiprovides a rich set of components, particularly for form handling, data display, and navigation. It also includes more specialized components like date pickers, sliders, and tree views, making it versatile for various application needs. 
Customization
- vuetify: 
vuetifyprovides robust customization options, including a powerful theming system that supports dark mode, CSS variables, and scoped styles. It also allows for deep customization of component styles and behaviors, making it one of the most flexible libraries in this regard. - bootstrap-vue: 
bootstrap-vueinherits Bootstrap’s customization features, allowing developers to override styles using CSS or Sass variables. However, its customization is largely limited to what Bootstrap provides, which may not be as flexible as some other libraries. - ant-design-vue: 
ant-design-vueallows for extensive customization through its theming capabilities, which enable developers to modify styles at both the component and global levels. It also supports CSS-in-JS, making it easier to implement dynamic styles. - element-ui: 
element-uioffers a theming system that allows for customization of component styles using CSS variables and a theme builder. It also provides good documentation on how to create and apply custom themes, making it relatively easy to achieve a unique look. 
Accessibility
- vuetify: 
vuetifyis designed with accessibility in mind, following Material Design accessibility guidelines. It provides built-in support for keyboard navigation, ARIA attributes, and screen reader compatibility, making it one of the more accessible UI libraries for Vue.js. - bootstrap-vue: 
bootstrap-vuebenefits from Bootstrap’s accessibility features, which include semantic HTML, keyboard navigation, and ARIA roles. However, the level of accessibility may vary depending on how components are implemented and customized by developers. - ant-design-vue: 
ant-design-vueplaces a strong emphasis on accessibility, adhering to WCAG guidelines and providing keyboard navigation support, ARIA attributes, and customizable focus states. The library is designed to be usable by people with disabilities, making it a good choice for inclusive applications. - element-ui: 
element-uihas made efforts to improve accessibility, but it may not be as comprehensive as some other libraries. It provides basic keyboard navigation and ARIA support, but developers may need to implement additional accessibility features for more complex components. 
Ease of Use: Code Examples
- vuetify: 
vuetifyExample<template> <v-btn color="blue">Blue Button</v-btn> </template> <script> import { VBtn } from 'vuetify/lib'; export default { components: { VBtn }, }; </script> - bootstrap-vue: 
bootstrap-vueExample<template> <b-button variant="success">Success Button</b-button> </template> <script> import { BButton } from 'bootstrap-vue'; export default { components: { BButton }, }; </script> - ant-design-vue: 
ant-design-vueExample<template> <a-button type="primary">Primary Button</a-button> </template> <script> import { Button } from 'ant-design-vue'; export default { components: { AButton: Button, }; </script> - element-ui: 
element-uiExample<template> <el-button type="danger">Danger Button</el-button> </template> <script> import { ElButton } from 'element-ui'; export default { components: { ElButton }, }; </script> 
