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About

Untitled UI is the world’s largest Figma UI kit, React component library, and icon system, offering designers and developers everything needed to design and build modern interfaces at speed. The Figma library features over 900 global styles and variables for color, typography, and effects, more than 10,000 meticulously crafted components and variants, 420 ready‑to‑use desktop and mobile page examples, and 4,600 neutral icons and logos, fully integrated into one design system. On the development side, Untitled UI React provides an open‑source collection of production‑ready components built with React v19.1, Tailwind CSS v4.1, TypeScript v5.8, and React Aria, ensuring type safety, accessibility (keyboard navigation and screen‑reader support), and lightning‑fast performance without lock‑in. AI‑ready Lovable and bolt.new kits enable instant prototyping with simple prompts, while seamless Figma previews and consistent styling across both platforms.

About

assistant-ui is an open source React toolkit for production AI chat experiences, designed to bring the UX of ChatGPT into your own app. It helps developers create beautiful, enterprise-grade AI chat interfaces in minutes for React, React Native, and terminal applications. Whether you are building a ChatGPT clone, a customer support chatbot, an AI assistant, or a complex multi-agent application, assistant-ui provides frontend primitive components and state management layers so you can focus on what makes your application unique. It includes instant chat UI with pre-built, beautiful, customizable chat interfaces out of the box, making it easy to quickly iterate on an idea. Its chat state management is optimized for streaming responses, interruptions, retries, multi-turn conversations, and efficient rendering. assistant-ui is built for high performance, with optimized rendering and a minimal bundle size to keep AI chat interfaces responsive.

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Audience

Product designers and front‑end developers wanting a solution to streamline design and development workflows

Audience

Frontend and AI app developers who need production-ready chat components, streaming state management, and flexible integrations for building polished AI assistants

Support

Phone Support Supported
24/7 Live Support Not Supported
Online Supported

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

API

Offers API Not Supported

API

Offers API Not Supported

Screenshots and Videos

Screenshots and Videos

Pricing

$129 per month
Free Version Supported
Free Trial Not Supported

Pricing

$50 per month
Free Version Supported
Free Trial Not Supported

Reviews/Ratings

Overall 5.0 / 5
ease 5.0 / 5
features 5.0 / 5
design 5.0 / 5
support 5.0 / 5

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Pros & Cons from Real Users

Pros

  • We've been using Untitled UI since version 3. It's by far the best library we've found and not even close... We use it to start new client projects and I can't even begin to guess how much time it has saved us.

Cons

  • It's VERY big so removing whatever we don't need takes a while.

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Supported

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Company Information

Untitled UI
United States
www.untitledui.com

Company Information

assistant-ui
United States
www.assistant-ui.com

Alternatives

Shadcn Space

Shadcn Space

WrapPixel

Alternatives

Swarm

Swarm

OpenAI
AgentKit

AgentKit

OpenAI

Categories

UX Supported

Categories

Agentic AI Supported
UX Supported

Integrations

React Supported
ChatGPT Not Supported
Claude Not Supported
Figma Supported
Gemini Not Supported
Grok Not Supported
LangChain Not Supported
Model Context Protocol (MCP) Not Supported
Perplexity Not Supported
React Aria Supported
React Native Not Supported
Tailwind CSS Supported
TypeScript Supported
shadcn/ui Not Supported

Integrations

React Supported
ChatGPT Supported
Claude Supported
Figma Not Supported
Gemini Supported
Grok Supported
LangChain Supported
Model Context Protocol (MCP) Supported
Perplexity Supported
React Aria Not Supported
React Native Supported
Tailwind CSS Not Supported
TypeScript Not Supported
shadcn/ui Supported
Claim Untitled UI and update features and information
Claim Untitled UI and update features and information
Claim assistant-ui and update features and information
Claim assistant-ui and update features and information