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UI

UI is a collection of reusable browser-oriented UI components and shared libraries for applications built with polkadot{.js} and the Polkadot and Substrate ecosystems.

Explore the practical guide ↓

Independent OpenViST project profile, based on linked sources.

UI — OpenViST project profile in Developer Tools.
OpenViST project illustration. See the linked sources for product details.
Understand the project

Practical overview

When it fits

Use UI when developing a Polkadot or Substrate application and one or more of its documented interface components or browser utilities fits the implementation need.

Who it is for

  • Developers building Polkadot or Substrate applications.
  • Teams using React, React Native or Vue that need address-derived identity icons.

Documented uses

  • Generate identity icons from addresses in React, React Native or Vue interfaces.
  • Build QR code generation and reading into supported Substrate or Polkadot flows.
  • Use a browser-specific wrapper for Polkadot keyring functionality.
  • Store application settings and configuration in browser local storage.
  • Reuse shared UI logic such as icon-generation logic.
Before you choose

Requirements & limits

The public repository specifies the Apache-2.0 license.

  • The identity-icon packages are listed for React, React Native and Vue.
  • The QR package is described as a generator and reader for uos and is limited in the README to Substrate and Polkadot.
  • The keyring and settings packages are browser-specific utilities; settings are stored in browser local storage.
  • The repository README points to package documentation and examples.

Check current requirements in the official documentation. Source-based guidance does not mean OpenViST has run or independently tested this project.

Source-based practical guide

Add an address-based identity icon to a React app

Use the React identity icon generator with an address as input in a Polkadot or Substrate application.

Before you start

  • A React application using the polkadot{.js} libraries.
  • An address to provide as the icon generator's input.

Steps

  1. Use the react-identicon component package.

  2. Provide an address as the component input to generate an identity icon.

Expected outcome

An identity icon generated from the supplied address.

Guide limitations

  • The source names the package and its function but does not document installation, code syntax, styling, or compatibility details.
Documentation 1 ↗
Source-based practical guide

Add QR code generation or reading for Polkadot/Substrate flows

Use the `react-qr` package for QR code generation or reading in a supported Polkadot/Substrate flow.

Before you start

  • An application using the polkadot{.js} libraries.
  • A Polkadot or Substrate flow; the source limits the package to these ecosystems.

Steps

  1. Use the react-qr package.

  2. Use its QR code generation or reading functionality in the flow.

Expected outcome

A QR code generation or reading interface for a supported Polkadot/Substrate flow.

Guide limitations

  • The source does not specify setup, code syntax, supported QR formats, or details of the uos integration.
Documentation 1 ↗
Evidence and transparency

Sources & review

Official repository ↗
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Sources checked
11 October 2026
Original website title
polkadot-js/ui · Official homepage title · retained in its source language
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