Lion Logo Lion Fundamentals Guides Components Blog Toggle darkmode

Progress Indicator: Overview

A web component that implements accessibility requirements for progress indicators.

<lion-progress-indicator aria-label="Interest rate" value="50"></lion-progress-indicator>


This component is designed to be extended in order to add visuals.

  • Can be indeterminate or determinate, depending on whether it has a value.
  • Accessibility compliant
  • Localized "Loading" label in case of an indeterminate progress-indicator
  • Implementation independent of visuals
  • value: progress value, setting this makes the progress-indicator determinate.
  • min: progress min value
  • max: progress max value


npm i --save @lion/ui
import { LionProgressIndicator } from '@lion/ui/progress-indicator.js';
// or
import '@lion/ui/define/lion-progress-indicator.js';