Glossary · Web & App Development
Next.js
Overview
What Next.js Is
Next.js is an open-source React framework, created and maintained by Vercel, for building full-stack web applications. It takes React—which handles only the UI—and adds the production essentials around it: routing, rendering strategies, data fetching, and backend API endpoints. This lets a single codebase serve fast, SEO-friendly pages and application logic together.
Key Features
Next.js supports multiple rendering modes—server-side rendering, static site generation, and incremental regeneration—so each page can be optimized for speed or freshness. Its App Router and React Server Components reduce the JavaScript sent to browsers, while file-based routing and built-in API routes streamline development. Image optimization and caching are handled out of the box.
Why It Matters for Business
For marketing sites and web apps that need to rank in search and load quickly, server rendering and static generation give Next.js a real edge over plain React. We build Next.js applications for frontend and full-stack development, lead generation sites, and sales funnels—delivering pages that are fast for users and legible to search engines and AI answer engines.
Where we use it
Related Zen in Tech services
How our team puts Next.js to work in real projects.
FAQ
Next.js — common questions
Next.js vs React—what's the difference?
React is the underlying UI library; Next.js is a framework built on React that adds routing, server-side rendering, static generation, and API routes. You use React to build components and Next.js to turn them into a complete, production-ready website or app.
Is Next.js good for SEO?
Yes. Next.js can render pages on the server or generate them statically, so search engines and AI crawlers receive fully formed HTML instead of waiting for JavaScript. Combined with fast load times, that makes it strong for SEO.
Is Next.js free?
Next.js is open-source and free to use, and it can be hosted anywhere Node.js runs. Vercel offers a paid managed hosting platform optimized for it, but you're not required to use Vercel to deploy a Next.js app.
Need Next.js done right?
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Knowledge hub
From our knowledge hub
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