Next.js + Headless CMS: Sanity vs WordPress

Introduction: Next.js and Headless CMS

I’ve built several blogs with Next.js on Vercel, and the choice of CMS can make or break the workflow. When I first used Sanity, the preview mode and automatic revalidation felt almost like magic. Today I tried the same patterns with WordPress, and the experience was surprisingly similar, but the trade-offs were different.

Preview Mode and Revalidation: The Core of a Fast Workflow

The two features that keep a content-driven site feeling alive are preview mode and revalidation. Preview mode lets editors see a draft on the live site before it’s published, eliminating the “publish and pray” loop. Revalidation, whether on-demand or scheduled, ensures that a new or updated post appears without a full rebuild. In Vercel, both features are baked into the platform, so the integration is straightforward once you wire the CMS to Next.js.

Sanity + Next.js: A Smooth Pairing

With Sanity, the connection is almost plug-and-play. The Sanity client fetches data at build time, and the preview hooks tap into the Sanity API to stream drafts. Revalidation is triggered via a webhook that Vercel listens to, so a new post instantly shows up. The developer experience is clean: you write a single GraphQL query, and the rest is handled by the Sanity SDK. For teams that already use Sanity for other projects, this stack feels like a natural extension.

WordPress + Next.js: The Pragmatic Choice

WordPress is still the most widely used CMS, so many teams already have editors comfortable with it. Pulling content via the REST API or WPGraphQL is straightforward, and you can still implement preview mode by using the WordPress preview endpoint. Revalidation works the same way: a webhook from WordPress triggers Vercel to rebuild the affected pages. The downside is that you’re pulling data from a monolithic application, which can add latency and complexity compared to a lightweight headless CMS. However, if your content team is entrenched in WordPress, the learning curve is minimal.

Why Next.js Works So Well With Headless CMS

Next.js excels at static generation, incremental static regeneration, and server-side rendering. When paired with a headless CMS, it gives you the best of both worlds: the speed of static pages and the flexibility of a dynamic backend. The key is to keep the data fetching logic in Next.js and let the CMS focus on content management. This separation of concerns means editors can focus on writing, while developers can focus on performance and design.

Choosing the Right Stack for Your Team

If your editors are already using WordPress, a headless WordPress + Next.js setup is often the pragmatic move. You avoid training, and the preview and revalidation flows are similar to what you already know. If you want a content-model-first approach and a tight Vercel workflow, Sanity still feels great. Other options like Contentful or Strapi exist, but they follow the same pattern: fetch data at build time, use webhooks for revalidation, and implement preview endpoints.

Final Thoughts

Both Sanity and WordPress can power a Next.js blog that feels fast and responsive. The choice comes down to your team’s existing tools, the complexity of your content model, and how much you value a lightweight CMS. Experiment with a small prototype on each stack, measure build times, and see which one aligns with your workflow.

If you’re looking for a freelance or full-stack developer to help you set up a Next.js site with the CMS that fits your team, feel free to reach out. Check out my portfolio at wabby.dev for more examples of my work.