Dev tools · alternatives · 2026

24 alternatives to React Cosmos 5

A tool for ambitious UI developers

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. React Cosmos 5 launched in 2019; newer entries below may have overtaken it.

1
Cosmos 3.0▲4
Dev tool for creating reusable React components
2017 · github.com · its alternatives →
2
react.dev▲543
The new home for React and its documentation
2023 · react.dev · its alternatives →
3
21st.dev▲1,211
I originally built this app to organize and reuse interesting React + Tailwind components I came across on Twitter, inspired by the shadcn/ui approach. Later, a friend started contributing their own components, and it got me thinking—this could grow into something bigger, like an NPM for design engineers to share and use components. Would love to hear your thoughts!
2025 · 21st.dev · its alternatives →
4
React Proto▲313
React application design and prototyping tool
2018 · react-proto.github.io · its alternatives →
5
Tempo Labs▲770
Quickly add payment, messaging, AI agents + more to your app
2024 · tempo.new · its alternatives →
6AV
A Visual IDE for React▲479
I made this because building UIs in a lexical medium like code is super annoying. I have to pre-render what I’m making in my head, and then jump between the browser and IDE to test. I was inspired by the developer console in chrome and safari since I end up editing css there because it’s ironically more convenient. Hope it’s useful!
2022 · dev.aspect.app · its alternatives →
7
Antd – A set of high-quality React components▲507
Following the Ant Design specification, we developed a React UI library antd (Pronunciation) that contains a set of high quality components and demos for building rich, interactive user interfaces.
2016 · ant.design · its alternatives →
8
ReactAI▲440
Open source free AI react components builder
2024 · its alternatives →
9
Airbnb React Sketch.app▲745
Render React components to Sketch for design systems
2017 · react-sketchapp.airbnb.tech · its alternatives →
10
Layouts.dev▲699
A notebook for building interfaces with Tailwind & shadcn/UI
2024 · layouts.dev · its alternatives →
11
React Scan▲385
Scan your React app for problematic renders and performance
2024 · react-scan.com · its alternatives →
12
Cosmos Video 3.0▲458
A meetings tool to create visibility & a sense of belonging
2022 · cosmos.video · its alternatives →
13
Quarkly▲184
Design tool to create sites & web apps on React
2020 · quarkly.io · its alternatives →
14
Compositor Lab▲210
React UI component design tool
2017 · compositor.io · its alternatives →
15
React Boilerplate 3.0▲370
Offline-first, highly scalable foundation for your next app
2016 · github.com · its alternatives →
16
refine.new▲462
100% open-source React framework to build web apps
2023 · its alternatives →
17
React for Designers▲286
Course for building a React site using components
2018 · designcode.io · its alternatives →
18
Blueprint▲203
A React UI toolkit for the web
2016 · blueprintjs.com · its alternatives →
19
ReactSymbols UI Kit▲288
UI elements in ready-to-use components for React
2017 · coolsymbol.now · its alternatives →
20
refine▲236
Open Source React Framework
2021 · github.com · its alternatives →
21
Dashboard UI Kit 3.0▲212
The largest design kit for creating dashboards, now in React
2018 · dashboard-ui.com · its alternatives →
22
ReacType▲91
Prototyping Tool Exporting React / Typescript Applications
2019 · github.com · its alternatives →
23
UI Builder for shadcn/ui▲242
React component for a visual way to create UIs
2024 · github.com · its alternatives →
24RL
React-live▲31
2015 · dariocravero.github.com · its alternatives →

Also compare

Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →