Astro vs Next.js: Which to Choose in 2026

Choose Astro for a marketing site, blog, portfolio or docs site where most pages are content and should ship almost no JavaScript. Choose Next.js when the site is really a React application: logged-in areas, live data, forms that write to a database, or pages that change per visitor. Both are free and MIT-licensed.

The two frameworks overlap more than they used to. Astro can render pages on a server, and Next.js can export a fully static site. The real difference is the default: Astro starts from static HTML and asks you to opt into JavaScript, while Next.js starts from React and asks you to opt out of the parts that need a server. This comparison uses each project's own documentation, read today, and says where each one runs out.

Astro vs Next.js at a Glance

Astro wins on page weight, simplicity and hosting freedom for content sites. Next.js wins on application features: server actions, incremental regeneration, middleware-style logic and a single React model from the first page to the dashboard. Pick by what the site has to do in a year, not by benchmark charts.

How Each One Renders a Page

Astro renders every component to HTML and CSS on the server and sends no client JavaScript unless you ask for it. Next.js renders React on the server too, but the page still loads React in the browser so that client components can take over.

In Astro, the parts that need to move are called islands. You add a client directive to one component, and only that component ships its JavaScript. Astro's islands documentation lists the main ones:

• client:load hydrates the component straight away, for something the visitor needs at once, like a menu.
• client:idle waits until the browser is idle, which suits a chat widget or a newsletter form.
• client:visible waits until the component scrolls into view, which suits a pricing toggle lower on the page.
• server:defer makes a server island: a piece rendered separately on the server, such as a signed-in avatar, while the rest of the page stays static.

Next.js uses the App Router and React Server Components. In the Next.js docs on Server and Client Components, pages and layouts are Server Components by default, which reduces the JavaScript sent to the browser; a file marked `use client` and everything it imports joins the client bundle. The split is the same idea as islands, but the page as a whole is still a React application, so navigation between routes happens in the browser.

For a ten-page brochure site, Astro's model is simpler to reason about: the page is HTML, and you can see exactly which three things are interactive. For an app with shared state across many screens, the single React tree in Next.js is the easier model.

Static Sites, Servers and Hosting

Both can produce a static site that any web host can serve. Astro does it by default. Next.js does it with `output: 'export'`, but that mode switches off every feature that needs a running server, so check the list before you commit to it.

Astro prerenders pages at build time by default. To render a page on request, you add an adapter and set `export const prerender = false` on that page, or set `output: 'server'` to make on-demand rendering the default. The official adapters are Node.js, Netlify, Vercel and Cloudflare.

Next.js lists four ways to deploy a project: a Node.js server and a Docker container both support every feature, a static export is limited, and adapters vary by platform. Vercel and Bun are the verified adapters today; Cloudflare and Netlify offer their own integrations while they build verified ones.

The Next.js static export guide says these features do not work in a static export:

• Incremental Static Regeneration and Draft Mode
• Server Actions, cookies, and route handlers that read the request
• Redirects, rewrites and headers set in next.config.js
• Image optimisation with the default loader (a custom loader such as Cloudinary still works)
• Dynamic routes without generateStaticParams()

That list matters for a marketing site. If you want redirects after a redesign or optimised images from next/image, a static Next.js export needs a custom image loader and redirect rules set at the host. If you need neither, a static export is a perfectly good way to ship a Next.js site.

Content, CMS and Blogs

Astro has a built-in content layer; Next.js leaves content to you. For a site that is mostly articles, case studies or docs, Astro's content collections save setup time. For content that lives in a database you already query from React, Next.js fits more naturally.

Astro content collections read Markdown, MDX, Markdoc, JSON, YAML or TOML files from a folder. An optional Zod schema checks every entry's fields at build time and generates TypeScript types, so a missing date or a misspelt category fails the build instead of reaching the live site. Loaders can also pull entries from a CMS or an API.

Next.js has no content layer of its own. Most teams render MDX, or fetch from a headless CMS inside Server Components. Its strength is updating that content without a full rebuild: Incremental Static Regeneration serves a cached static page and regenerates it in the background after a set time, such as `export const revalidate = 3600` for one hour, or on demand when the CMS calls revalidatePath. ISR needs a server or an adapter; it does not run on a static export.

For a blog of a few hundred posts, a full Astro rebuild on each publish is usually fine. For thousands of product pages that change daily, ISR is the stronger tool.

Which One Suits Your Site

Match the framework to the job the site does, not to the framework's popularity. The table below covers the most common kinds of site.

Team skills decide close calls. If nobody on the team writes React, Astro's .astro files are closer to HTML, and you only need React for the islands you add. If the team already ships React every day, Next.js removes a second mental model.

Waida's Astro and Next.js Templates

We build every Waida Studio design in both frameworks, so you can choose by stack rather than by look. There are 43 Astro templates and 43 Next.js templates, $49 each or $99 for every template on one platform in its bundle. These are our own templates, so weigh the picks below with that in mind.

The Astro versions use .astro files and Tailwind, with islands only where something needs to be interactive, and deploy anywhere that serves static output: Netlify, Vercel, Cloudflare Pages, GitHub Pages or ordinary hosting. The Next.js versions use the App Router, TypeScript and Tailwind, and run on Vercel with no configuration or on Netlify, Cloudflare, a container or a VPS. Both arrive as a zip of the project.

Zelda: Dark Design Agency, Free

Zelda is a 13-page dark agency site and one of two templates that are free on every platform, Figma file included, with a free Waida account. Download both versions and compare the Astro and Next.js builds of the same design side by side.

Check out Zelda template

Medonix: Medical SaaS Startup, Free

Medonix is a 13-page SaaS startup site, also free on every platform with a free account. It suits the Next.js path if you plan to add a product dashboard behind the marketing pages.

Check out Medonix template

Mariq: Marketing Agency, $49 in Code

Mariq is an 11-page marketing agency site. The Astro and Next.js versions are $49 each, the HTML version is $39, and the Figma file is sold separately at $19. Browse more SaaS templates if you need a product-led layout.

Check out Mariq template

Every licence covers one person and unlimited projects, including client work, with no attribution required; the licence terms have the detail. If you would rather not touch code, the same designs exist as plain HTML templates, and our template customisation service adapts one for you for $499 with 7-day delivery.

Astro is the better default for a marketing site, portfolio or blog: static HTML, JavaScript only where you add it, and hosting almost anywhere. Next.js is the better choice once the site needs accounts, live data, per-visitor pages or in-place updates through ISR. If you are unsure, start from the job the site will do next year.

To try both without starting from a blank folder, download Zelda or Medonix free, or browse the Next.js templates and Astro templates at $49 each. For a wider look at templates against custom builds, read template vs custom website, and see our Next.js landing page picks for more starting points.