Bootstrap
https://getbootstrap.com/
BootstrapVue provides one of the most comprehensive implementations of Bootstrap 4 components and grid system for Vue.js and with extensive and automated WAI-ARIA accessibility markup.
https://bootstrap-vue.js.org
https://github.com/bootstrap-vue/bootstrap-vue
Element
http://element-cn.eleme.io/
A Vue.js 2.0 UI Toolkit for Web
https://element.eleme.io/
https://github.com/ElemeFE/element
Framework7
Framework7 – is a free and open source mobile HTML framework to develop hybrid mobile apps or web apps with iOS & Android native look and feel.
https://framework7.io/
Vuetify
Material Component Framework for Vue.js 2
https://vuetifyjs.com
https://github.com/vuetifyjs/vuetify
Bulma
Modern CSS framework based on Flexbox
https://bulma.io
https://github.com/jgthms/bulma
Tailwind
A utility-first CSS framework for rapid UI development.
https://tailwindcss.com/
https://github.com/tailwindcss/tailwindcss
Ant Design Vue
An enterprise-class UI components based on Ant Design and Vue.
https://github.com/vueComponent/ant-design-vue
Buely
Lightweight UI components for Vue.js based on Bulma.
https://buefy.github.io/