WordPress vs Next.js: Which Is Right for Your Business Website in 2026?

When should a business choose Next.js or React instead of WordPress?

React is a library for building user interfaces; Next.js describes itself as a React framework for building full-stack web applications (Next.js Docs, accessed 18 October 2026). The key word is applications. Next.js vs WordPress for a business website comes down to whether your website is mostly pages to read or mostly things to do.

• Logged-in areas. Customer portals, dashboards, account areas and booking flows involve users, permissions and your own data model. WordPress can be stretched to do this with membership plugins, but you end up fighting the system.
• Custom integrations. When the site has to read from and write to your CRM, ERP, inventory or pricing engine in real time, that logic is easier to test, secure and change as application code.
• Performance you control. Next.js lets developers decide how each page is rendered and exactly what JavaScript reaches the browser. On WordPress, performance depends heavily on the theme and every plugin that adds scripts.
• A product, not a brochure. SaaS products and internal tools need versioned code, automated tests and deployment pipelines that a CMS does not give you.
• Your team’s skills. If you already employ JavaScript or TypeScript developers, a Next.js codebase fits how they work. If nobody on your side writes code, a Next.js site without a CMS means paying a developer for every text change.

Be honest about the last point. For a content-led site edited by marketing or operations staff, WordPress is usually the cheaper and more practical choice, and a custom Next.js build is only worth it if one of the needs above applies.

How can I integrate payment gateways, CRMs and third-party APIs into my website?

There are two routes, and most businesses should try the first before paying for the second.

The plugin route

On WordPress, payment gateways, CRMs and email tools usually offer an official plugin. Install it, connect your account, map the form fields, and test. This works well when the integration is one-way and standard: a contact form that creates a lead, or a shop that takes card payments. Check who publishes the plugin, when it was last updated, and what data it sends where.

The custom API route

When data must flow both ways, follow your own business rules, or combine several systems, a developer writes the integration against each provider’s API. In a Next.js site this runs on the server, so API keys stay out of the browser. Good custom integrations share a few habits:

• Secret keys live in environment variables on the server, never in front-end code or the repository.
• Webhooks (notifications the provider sends to your site when something happens, such as a payment succeeding) are received over HTTPS and their signatures are verified. Stripe, for example, tells you to verify webhook signatures and allowlist its IP addresses so you know each event really came from Stripe (Stripe integration security guide, accessed 18 October 2026).
• Failed calls are retried safely, and the same event arriving twice does not create two orders or two leads.
• Errors are logged and someone is alerted, so a broken CRM sync is noticed in hours, not months.

Payments: keep card data off your servers

Stripe explains that PCI compliance is a shared responsibility, and that a business which handles card data directly might be required to meet more than 300 security controls in PCI DSS (Stripe Docs). Its hosted Checkout and embedded Elements collect card details in a field served from Stripe’s domain, so card information never touches your servers, and Stripe places them under SAQ A, while sending card data directly to its API falls under SAQ D, the most demanding self-assessment (Stripe guide to PCI compliance). Both accessed 18 October 2026. Other major payment providers offer similar hosted options. Whichever stack you choose, use one unless you have a specific reason not to.

Where AI Dev Planner fits, and when WordPress is the better choice

We build in Next.js and React. We fit when your website is turning into an application: a customer portal, a booking or quoting flow, a SaaS product, or a marketing site that has to sit beside one and share its design and data. Where editors need to keep publishing, a Next.js front end can sit on top of a headless CMS, including headless WordPress. See our Next.js development services, React development services and web development services.

On cost and time, our own planning figures are a web application MVP in 12–16 weeks, a SaaS MVP in 8–12 weeks, roughly £25,000–£45,000 for a robust MVP in the UK, and from around £60,000 for customer portals, with detail in our guide to custom web application development costs and the MVP cost calculator. We quote brochure and marketing websites after scoping. If you are building a product, the software requirements document template helps you write down what it has to do first.

WordPress is the better choice, and we will tell you so, if:

• your site is mainly pages, posts and landing pages that your own staff edit;
• you need nothing a well-maintained theme and a few reputable plugins cannot do;
• you run a standard online shop that WooCommerce or a hosted commerce platform already handles;
• your budget suits a configured site rather than a custom build. In those cases a specialist WordPress developer is usually better value than us; our guides on agency vs freelancer vs in-house and how to choose a development company apply to WordPress suppliers too.