How to Deploy SvelteKit to Production in 2026

Deploy SvelteKit to Production in 2026

SvelteKit is one of the fastest-growing full-stack JavaScript frameworks. It compiles components to highly optimised vanilla JavaScript, ships minimal runtime code, and supports both server-side rendering and static generation. For many use cases — marketing sites, documentation, dashboards, SPAs — the static adapter is the right choice: pre-render everything at build time and serve from a CDN at zero marginal cost.

PandaStack supports SvelteKit static deployments natively. Connect your GitHub repo, add a pandastack.json, and push.

Prerequisites

• Node.js 20+ installed locally
• A GitHub account
• PandaStack CLI: npm install -g @pandastack/cli

Step 1 — Scaffold a SvelteKit Project

npm create svelte@latest my-sveltekit-app
cd my-sveltekit-app
npm install

The interactive wizard offers Skeleton, SvelteKit demo, and Library options. Choose Skeleton project for a clean start. Select TypeScript if preferred.

Start the dev server:

npm run dev
# http://localhost:5173

Step 2 — Install the Static Adapter

SvelteKit uses adapters to target different deployment environments. The static adapter pre-renders all routes at build time and outputs plain HTML, CSS, and JavaScript:

npm install -D @sveltejs/adapter-static

Update svelte.config.js to use it:

import adapter from '@sveltejs/adapter-static';

/** @type {import('@sveltejs/kit').Config} */
const config = {
  kit: {
    adapter: adapter({
      pages: 'build',
      assets: 'build',
      fallback: 'index.html',
      precompress: false,
      strict: true
    })
  }
};

export default config;

The fallback: 'index.html' setting tells the adapter to generate a fallback page for client-side routing — so dynamic routes handled by SvelteKit's router still work after a hard refresh.

Step 3 — Enable Prerendering

For the static adapter to work, your routes must be prerenderable. Add this to src/routes/+layout.js (or +layout.ts):

export const prerender = true;

For routes with dynamic parameters (like /blog/[slug]), export an entries function so SvelteKit knows which paths to pre-render:

// src/routes/blog/[slug]/+page.js
export const prerender = true;

export function entries() {
  return [
    { slug: 'deploy-svelte-kit' },
    { slug: 'deploy-vue-app' }
  ];
}

Step 4 — Build and Verify

npm run build

Inspect the output:

ls build/
# _app/  favicon.png  index.html

Preview the static build locally:

npm run preview
# http://localhost:4173

Step 5 — Configure pandastack.json

{
  "type": "static",
  "buildCommand": "npm run build",
  "outputDir": "build"
}

SvelteKit's static adapter outputs to build/ by default (configured in svelte.config.js). Point outputDir there.

Step 6 — Push to GitHub and Deploy

git add .
git commit -m "SvelteKit with static adapter for PandaStack"
gh repo create my-sveltekit-app --public --source=. --push

Deploy via the CLI:

panda deploy

Or go to [dashboard.pandastack.io](https://dashboard.pandastack.io) → New Project → connect your GitHub repo. PandaStack reads pandastack.json and runs the build automatically on every push.

Step 7 — Use Environment Variables

SvelteKit handles public and private env variables differently. Public variables (exposed to the browser) use the VITE_ or PUBLIC_ prefix:

# .env
PUBLIC_API_URL=https://api.my-backend.pandastack.io

Access them in components:

import { PUBLIC_API_URL } from '$env/static/public';

Set production values in the PandaStack dashboard under Environment Variables.

Continuous Deployment

Every git push to your main branch triggers a new deploy:

git add . && git commit -m "Update homepage copy" && git push
# PandaStack builds and deploys within seconds

View deployment logs:

panda logs

SvelteKit vs Other Static Frameworks

SvelteKit competes with Next.js, Nuxt, and Astro for the static site generation space. Its compiled-output approach means virtually zero runtime JavaScript overhead compared to React-based alternatives. Lighthouse scores for SvelteKit static sites routinely hit 100/100 on performance because the output is lean, semantic HTML with minimal JavaScript. This makes PandaStack's CDN delivery even more effective — smaller payloads, faster Time to First Byte, and better Core Web Vitals scores that help with SEO rankings.

Summary

SvelteKit with the static adapter is one of the most efficient ways to ship a fast, modern web application. PandaStack serves the build/ folder from a CDN with automatic HTTPS and GitHub-triggered deployments. Full documentation at [docs.pandastack.io](https://docs.pandastack.io).