Headless WordPress decouples the content management backend from the frontend presentation layer. WordPress handles content creation, storage, and API delivery, while a separate frontend — built with Next.js, Nuxt, or another framework — handles rendering and user interaction.
This approach offers significant advantages: better performance through server-side rendering, more flexible frontend architectures, and stronger security by hiding the WordPress admin surface. Next.js has emerged as the most popular frontend framework for headless WordPress, and this guide covers how to set it up.
Why Go Headless?
Headless architecture shines in specific scenarios. If you need a highly customized frontend with complex interactions — like a course platform, a directory site, or a mobile app powered by WordPress — headless gives you complete control over the user experience. It also improves performance by serving pre-rendered HTML from a CDN.
The tradeoffs are real: you maintain two codebases instead of one, content preview is more complex, and you lose access to WordPress’s frontend template hierarchy.
Setting Up the WordPress Backend
Your WordPress installation becomes a headless CMS. Enable the REST API — it’s on by default in modern WordPress. Install WPGraphQL for a more flexible GraphQL API, or use the built-in REST API for simpler setups. Add custom post types and advanced custom fields as needed to structure your content.
Enable the Application Password feature in WordPress for authenticated API requests. Install the Simply Static or WP2Static plugin to generate static exports if you want to deploy a fully static site. Configure CORS headers to allow your frontend domain to access the API.
Building the Next.js Frontend
Create a Next.js project with npx create-next-app. Install the Apollo Client or SWR for data fetching from your WordPress API. Create pages that fetch WordPress content at build time using getStaticProps or at request time using getServerSideProps.
For blog posts, create a dynamic route with [slug].js that fetches a single post from the WordPress API and renders it with your frontend components. For a full site, create pages for posts, pages, custom post types, categories, tags, and the homepage — each with the appropriate data fetching strategy.
Rendering Strategies
Next.js offers multiple rendering strategies that you can mix within a single site. Static Site Generation (SSG) pre-renders pages at build time — ideal for blog posts that don’t change frequently. Server-Side Rendering (SSR) renders pages on each request — good for frequently updated content. Incremental Static Regeneration (ISR) re-renders static pages in the background when content changes.
For a headless WordPress site, ISR is often the best choice: it gives you the performance of static pages with the freshness of server-rendered content.
Content Preview
One of the biggest challenges in headless WordPress is content preview. In traditional WordPress, preview works because the template system renders drafts. In a headless setup, you need to build your own preview mechanism.
Create a preview endpoint in Next.js that accepts a post ID and a nonce from WordPress. Verify the nonce, fetch the draft from the WordPress API, and render it. Configure the WordPress preview URL to point to your Next.js preview endpoint with the appropriate parameters.
Deployment
Deploy your Next.js frontend to Vercel, Netlify, or a VPS. Configure environment variables for your WordPress API URL and any API keys. Set up webhooks in WordPress to trigger rebuilds when content changes — this keeps your static pages up to date without manual rebuilds.
For the WordPress backend, any hosting that supports WordPress works. The backend doesn’t need to be high-performance because it only serves API requests, not page loads. A basic VPS or managed WordPress host suffices.
The Bottom Line
Headless WordPress with Next.js gives you the best of both worlds: a powerful, familiar content management backend with a modern, high-performance frontend. It’s more work than traditional WordPress, but for sites that need custom frontends, interactive experiences, or global performance, the investment pays off.