sv

Everything you need to build a Svelte project, powered by sv.

Creating a project

If you're seeing this, you've probably already done this step. Congrats!

# create a new project in the current directory
npx sv create

# create a new project in my-app
npx sv create my-app

Developing

Once you've created a project and installed dependencies with npm install (or pnpm install or yarn), start a development server:

npm run dev

# or start the server and open the app in a new browser tab
npm run dev -- --open

Building

To create a production version of your app:

npm run build

You can preview the production build with npm run preview.

To deploy your app, you may need to install an adapter for your target environment.

Bundle Size Analysis & Optimization

This document explains how to measure bundle sizes, understand minification, and make informed decisions about dependencies.

Quick Commands

# Build production bundle
pnpm build

# Analyze client bundle size
du -sh .svelte-kit/output/client

# Find largest JS chunks
find .svelte-kit/output/client -name "*.js" -exec du -sh {} \; | sort -h | tail -10

# Check gzipped size of a file
gzip -c <