React
A JavaScript library for building user interfaces.
Overview
React is an open-source JavaScript library for building user interfaces with reusable components. It uses a declarative approach and JSX to describe what the UI should look like, and efficiently updates the view when data changes. React also provides features like Hooks for managing state and side effects, and it can be combined with other tools to build everything from small widgets to full single-page applications.
Single-page applications, Complex UIs, Mobile apps (React Native)
MIT
Quick Start
For a new app (recommended): scaffold with Vite, then run dev server: npm create vite@latest → choose React template → npm install → npm run dev. For an existing project: install react + react-dom, then render React into a specific element on the page (so you can add React “islands” without rewriting the whole site).
Key Features
Virtual DOM
JSX
Hooks
Server Components
Concurrent Rendering
Pros & Cons
Pros
- Largest ecosystem
- Most job opportunities
- Huge community
Cons
- Just a library, needs more tooling
- JSX learning curve
Common Use Cases
Compatible CMS
Crystallize
Headless PIM and commerce
React Bricks
CMS with inline visual editing for React
ButterCMS
API-first CMS for any tech stack
Caisy
Developer-friendly headless CMS
Cosmic
Headless CMS for any website or app
Kontent.ai
Enterprise headless CMS with AI-powered content governance at scale
Contentstack
Enterprise API-first headless CMS for omnichannel digital experiences at scale
Plasmic
Visual builder with an API-first CMS for Jamstack teams.
Webiny
Open-source serverless enterprise CMS self-hosted on AWS infrastructure
Contember
Bespoke content management
Compatible Cloud Servers
Vercel
The platform for frontend developers
Netlify
The platform developers love
Cloudflare Pages
JAMstack platform for frontend developers
AWS Amplify
Build full-stack web and mobile apps
Find React Experts
Looking for professional help with your React project? Here are top certified agencies and developers.
Top Agencies
Alpina Tech
#1 RecommendedCraft custom, responsive websites using expert code and stunning design. Build your site with a flexible CMS and premium hosting to boost your digital presence.
10x Media
10x Media is a boutique web development agency located in Bavaria (Germany) with additional hubs in Sofia (Bulgaria) and Santiago (Chile). We’re a core team of 8 people, and we don’t just code: we combine strategy, design, development, and project management, covering everything needed to bring high-impact digital solutions to life.
QBurst
QBurst is a digital engineering company that crafts delightful client experiences through AI-driven software engineering and data solutions.
.NFQ | Netzfrequenz GmbH
We are a Germany-based digital agency specializing in innovative and data-driven solutions across the entire customer journey. With a strong foundation in technology, strategy, and creativity, we craft tailored digital experiences that enhance brand presence and business growth.
NOTUM
#1 RecommendedWe are CMS-centered agency with 7 years of CMS experience. We build scalable corporate websites for scale-ups with headless CMS solutions. From design to deployment, we deliver complete, reliable support.