Deploy Your SvelteKit Site to EU Infrastructure
SvelteKit with adapter-static produces pre-rendered HTML that
loads instantly and scores 100 on Lighthouse out of the box. deploybase
auto-detects your SvelteKit project, runs npm run build, and
deploys the build output to a global CDN — built on Scaleway Paris,
delivered via Bunny.net across 100+ PoPs. We built deploybase's own frontend
with SvelteKit, so you're deploying on a platform that runs the same framework
in production. No build pipeline to configure, no US data transfers.
Last updated: April 2026
Deploy SvelteKit in Three Steps
Connect your repository
Link your GitHub, GitLab, Bitbucket, or Codeberg repository.
deploybase detects svelte.config.js and identifies your
project as SvelteKit automatically. The build command (npm run build), output directory (build), and install step (npm install) are pre-filled. Make sure your project uses @sveltejs/adapter-static for static output.
Push your code
Push to your default branch to trigger a production deployment, or
push to any feature branch for an automatic preview URL. deploybase
clones your repository into an isolated node:24-alpine container,
installs dependencies, and runs your SvelteKit build. Real-time build logs
stream in the dashboard so you can watch the Vite bundler and pre-renderer
work.
Your site is live
The pre-rendered output from build/ is uploaded to
Bunny.net storage and served via their global CDN with 100+ points of
presence. Your site gets a .sites.deploybase.eu URL immediately
— add a custom domain with automatic TLS whenever you're ready. A typical
SvelteKit site deploys in under two minutes.
SvelteKit Build Configuration
These defaults are auto-detected when deploybase identifies a SvelteKit project. Override any value in your project settings.
| Setting | Default Value | Notes |
|---|---|---|
| Build command | npm run build | Runs vite build + SvelteKit pre-renderer |
| Output directory | build | adapter-static default output location |
| Install command | npm install | Use bun install or pnpm install if preferred |
| Docker image | node:24-alpine | Node.js 24 LTS on Alpine Linux |
| Adapter | adapter-static | Required — pre-renders all pages to static HTML |
What You Get with SvelteKit on deploybase
Branch Previews for Component Development
Every feature branch gets a unique CDN-backed preview URL at {branch}-{slug}.previews.deploybase.eu. SvelteKit's
component-driven architecture makes branch previews especially
valuable — review new components, layout changes, or page transitions
on a live URL before merging. Share with designers or stakeholders for
visual sign-off on the exact build that will go to production.
Instant Rollback Without Rebuilding
Every SvelteKit deployment is an immutable snapshot stored on the CDN. Deployed a component with a visual regression? Re-point production to any previous build in seconds — no rebuild, no waiting for Vite to re-bundle. SvelteKit's compiled output is already minimal (Svelte compiles components to vanilla JavaScript with no runtime overhead), so rollback gives you an identical, tested build instantly.
EU Data Residency by Architecture
Your SvelteKit source code is cloned and built on Scaleway infrastructure in Paris. Build artifacts are stored in Bunny.net's EU-origin storage. Sites are delivered globally via 100+ CDN PoPs, but the origin data never leaves the EU. No AWS, no GCP, no Azure in the chain. deploybase's own frontend is a SvelteKit application deployed on this same infrastructure — we rely on it for our own production workloads.
Global Performance, EU Origin
SvelteKit with adapter-static produces some of the smallest bundle sizes in the ecosystem — Svelte compiles away the framework, leaving only the JavaScript your components actually need. Serve that output through Bunny.net's global CDN with 100+ points of presence and your visitors get sub-100ms response times worldwide. Automatic TLS via DNS-01 ACME, custom domains, and 99.99% uptime SLA from an EU-headquartered CDN provider.
Why SvelteKit and deploybase Are a Natural Fit
SvelteKit is the fastest-growing full-stack framework in the JavaScript ecosystem. It ranked #1 in developer retention in the State of JavaScript 2024 survey, meaning developers who try it keep using it. The compiler approach — Svelte compiles components to minimal vanilla JavaScript at build time — eliminates the runtime overhead of React's virtual DOM or Vue's reactivity system. The result: smaller bundles, faster page loads, and perfect Lighthouse scores out of the box.
deploybase complements SvelteKit's performance-first philosophy. We host the static output on EU infrastructure with flat EUR pricing — no per-seat fees, no bandwidth overages, no US data transfers. deploybase's own frontend is built with SvelteKit 2 and Svelte 5, deployed on the same infrastructure available to you. If you're evaluating platforms, see how deploybase compares to Vercel or Netlify. For content-heavy sites, also consider Astro, which ships zero JavaScript by default — a different trade-off than SvelteKit's component-driven approach.
Frequently Asked Questions
Does deploybase support SvelteKit with adapter-node or adapter-auto?
deploybase is built for static sites. SvelteKit projects must use adapter-static to pre-render all pages to HTML at build time. If your application requires server-side rendering, API routes, or form actions that run on a server, you'll need adapter-node or adapter-auto on a platform like Vercel or Railway. For content sites, marketing pages, documentation, and portfolios, adapter-static is the right choice and produces the fastest possible output.
How does deploybase detect my SvelteKit project?
deploybase scans your repository for svelte.config.js (or .ts) and checks for @sveltejs/kit in your package.json dependencies. Once detected, it pre-fills the build command (npm run build), output directory (build), and install step (npm install). You can override any of these defaults in your project settings.
Do I need to configure adapter-static separately?
Yes — SvelteKit doesn't use adapter-static by default. Install it with npm install -D @sveltejs/adapter-static, then set it in your svelte.config.js: adapter: adapter-static(). You may also need to add export const prerender = true to your root +layout.js (or +layout.ts) if you want all pages pre-rendered. deploybase handles everything after that — the build command and output directory work automatically.
Can I use SvelteKit's form actions with deploybase?
Form actions require a server runtime and are not compatible with adapter-static. For static SvelteKit sites on deploybase, handle form submissions client-side by calling an external API. This is the standard JAMstack approach — your SvelteKit frontend handles the UI, and a separate backend handles the data. deploybase supports environment variables for storing API endpoints and keys.
What about SvelteKit's prerender option for individual pages?
When using adapter-static, SvelteKit pre-renders all pages by default if you set export const prerender = true in your root layout. You can also selectively pre-render specific pages by adding this export to individual +page.js files. Pages that cannot be pre-rendered (dynamic routes without entries defined) will cause a build error — either provide entries or exclude them via the prerender config in svelte.config.js.
Deploy your SvelteKit site in under two minutes
Free plan includes 1 site, 100 GB bandwidth, custom domains, and automatic TLS. No credit card required.