The framework debate has a new shape in 2026. A couple of years ago, the conversation was basically “are you using Next.js or are you wrong?” That’s no longer the case. Astro vs Next.js is now a genuine technical decision, and if you’re a UK freelancer or small agency picking a stack for a new project, getting it wrong costs you real time and money. I’ve spent a fair chunk of the last year shipping with both, and I have opinions.
This isn’t a “both are great in their own way” fence-sit. I’ll tell you which one wins for which type of work, what the hosting implications look like on UK infrastructure, and why the choice matters more than most tutorials let on.
What each framework actually is
Next.js, maintained by Vercel, is a React-based full-stack framework. It does server-side rendering, static generation, incremental static regeneration, API routes, middleware, edge functions, the lot. It’s been the default choice for serious React projects for years, and the ecosystem around it is enormous.
Astro is something different. It’s an islands-architecture framework that ships zero JavaScript to the browser by default. You write components in whatever flavour you fancy (React, Svelte, Vue, or plain HTML) and Astro only hydrates the interactive bits. The result is pages that are genuinely fast in a way that feels almost unfair. For content-heavy sites, the Lighthouse scores are embarrassing compared to a typical Next.js build.
These two frameworks are not really competing for the same use case. The problem is that a lot of developers reach for Next.js out of habit, even when Astro would be the smarter pick.
Build performance: where Astro genuinely wins
For a marketing site, a blog, a documentation hub, or a portfolio, Astro is faster to build with and faster to serve. Full stop. The islands architecture means your pages arrive in the browser as HTML with CSS, and only the components that need interactivity (a search bar, a contact form, a live pricing widget) get JavaScript injected. Everything else is static.
I rebuilt a client’s agency site last autumn, previously on Next.js with a bloated component tree, and the move to Astro dropped Time to First Byte from around 800ms to under 120ms on a cold UK edge. The Core Web Vitals went green across the board without any heroics. If you’ve been wrestling with layout performance issues at the CSS level, the framework layer matters even more than you might think.
Next.js, by contrast, carries React into the browser on every page by default. Even with server components (which are genuinely clever and have improved things substantially), you’re shipping more JavaScript than Astro would. For a SaaS dashboard, a social platform, or anything with heavy real-time state, that’s a reasonable trade. For a brochure site? It’s not.
Hosting costs on UK providers
This is where the decision gets practical and where UK developers often get stung. Next.js is heavily optimised for Vercel’s own infrastructure. That’s not a criticism, Vercel is a good product, but their free tier has limits that bite fast, and their Pro tier at roughly £17 per user per month adds up for a small agency with multiple projects running.
Alternatives like Netlify or UK-adjacent providers such as Cloudflare Pages handle Next.js, but you lose some features (middleware running on Vercel’s edge, ISR at the granular level) or find workarounds necessary. The Vercel lock-in is real, even if the company insists otherwise.
Astro sites, because they’re largely static output, deploy anywhere. Cloudflare Pages for free. An S3-compatible UK bucket behind a CDN. Your client’s existing cPanel host, if it comes to that. I’ve run Astro sites on Hetzner VPS instances in their UK datacentre (Falkenstein is technically Germany, but their London presence is growing) for under £5 per month including everything. Next.js apps with server-side requirements need a Node runtime, which means either a managed platform with associated costs or your own self-hosted VPS setup that you need to maintain.
For UK freelancers billing smaller clients, the hosting cost difference can genuinely affect whether a project is profitable at the price point the client expects.
Which projects actually suit each framework
Astro wins for: marketing sites, landing pages, blogs, documentation, portfolios, news sites, e-commerce storefronts where the cart is a third-party embed, and any project where content is the primary product. If the page is mostly read, not interacted with, Astro should be your first choice.
Next.js wins for: SaaS products with authenticated dashboards, apps with real-time data requirements, anything with complex server-side logic that needs to live close to the data layer, and projects where the team is already deep in the React ecosystem and moving away would cost more than it saves. It’s also the better pick when you’re building something that will grow into a full application, because its routing and API layer scale well.
A pattern I see constantly in UK agency work: someone specs a Next.js build for a 12-page product site because the team knows React. The site ends up with a bundle size north of 800KB for pages that are basically text and images. Then they spend a sprint optimising what the framework choice created. Astro wouldn’t have done that.
There’s also a middle path worth mentioning. Some teams are now running hybrid setups: Astro for the public-facing marketing and content pages, Next.js (or a lighter alternative like Remix) for the authenticated product area. The two can coexist on subdomains or subdirectories, and if you’re thoughtful about the split, you get the best performance characteristics of both without too much architectural overhead.
The developer experience difference
Next.js has the larger ecosystem, more Stack Overflow answers, and a bigger community in the UK dev scene. If you’re hiring or collaborating, finding someone familiar with Next.js is easier. The Astro community is growing fast, and the documentation is genuinely excellent, but it’s still smaller.
Astro’s component model, where you can mix React, Svelte, and vanilla components in the same project, sounds chaotic but is surprisingly workable. For a freelancer who has built up a library of components across different frameworks, it’s actually liberating. I’ve pulled in a React data-viz component alongside a Svelte interactive widget and it just worked. That flexibility is part of why Astro suits project-based freelance work so well.
One thing I’ve noticed: clients who care about their web presence (the ones spending money on cookie free display advertising UK services and similar performance-focused digital channels) are increasingly asking specific questions about page speed. Astro makes it much easier to hit those targets without a performance engineering sprint at the end of every project.
For teams already building design systems or working across multiple products, the framework choice also interacts with your component architecture. If you’re maintaining icon systems or a full icon design system across multiple surfaces, understanding how your framework handles component hydration will affect how you structure those shared resources.
My actual recommendation
Default to Astro for anything content-first. The performance advantages are real, the hosting costs are lower, and the developer experience is genuinely good. You won’t spend three hours debugging why your bundle includes a library you imported once in a layout file.
Use Next.js when the project genuinely needs it: persistent server-side state, complex auth flows, real-time features, or a codebase that’s going to grow into something an engineering team maintains long-term.
The Astro documentation is worth an afternoon of your time even if you’re not planning to use it immediately. You’ll come away with a much clearer sense of what “islands architecture” actually means in practice, which makes the Next.js vs Astro decision far more intuitive when a new project lands on your desk.
Both frameworks are mature, production-ready, and supported well enough that you won’t be stranded. The choice is about fit, not about quality. Pick the tool that matches the problem, not the one you’re most comfortable with.
Frequently Asked Questions
Is Astro faster than Next.js for production sites?
For content-heavy, mostly static sites, yes, Astro ships zero JavaScript by default, which results in dramatically smaller payloads and faster load times. For highly interactive apps like SaaS dashboards, Next.js with server components is more competitive because it’s designed for that kind of complexity.
Can I host an Astro site on cheap UK hosting?
Yes, and that’s one of Astro’s main advantages. Because the output is static HTML, CSS, and minimal JS, you can host on Cloudflare Pages (free tier is generous), any S3-compatible storage, or a basic UK VPS for a few pounds per month. Next.js apps with server-side features need a Node runtime environment, which typically costs more.
Should I use Astro or Next.js for a SaaS product?
Next.js is the stronger choice for a full SaaS product with authenticated users, complex server logic, and real-time data requirements. That said, many SaaS teams use Astro for their public marketing site and Next.js only for the authenticated app area, which is a sensible split.
Does Astro work with React components?
Yes. Astro supports React, Svelte, Vue, Solid, and plain HTML components in the same project simultaneously. Only components that need client-side interactivity are hydrated; everything else renders as static HTML at build time.
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