UI FrameworkCompilerComponentsSvelteKitViteSSRCSRSSGISR

Svelte

Cybernetically enhanced web apps

Overview

Svelte is a UI framework that uses a compiler so you can write concise components that do minimal work in the browser, using HTML, CSS, and JavaScript.\n\nFor application development, the Svelte team recommends SvelteKit (powered by Vite). With SvelteKit you can mix rendering strategies per route, including server rendering (SSR), client-side rendering (CSR / SPA mode), static site generation (SSG) via prerendering, and Incremental Static Regeneration (ISR) when deploying with the official Vercel adapter.\n\nSvelte also provides a server-only API (svelte/server) for rendering components to HTML on the server when compiling with the server option.

Rendering Modes

CSRSSRSSG

Best For

Interactive components, Small to medium apps, Performance-critical UIs, ISR

License

MIT

Quick Start

npm i svelte

Recommended getting started path: create a new project using SvelteKit (powered by Vite): npx sv create myapp → cd myapp → npm install → npm run dev Editor tooling: use the official Svelte VS Code extension; optional CLI checking via npx sv check.

Key Features

Compile-time Reactivity

No Virtual DOM

Scoped CSS

Transitions

Stores

Pros & Cons

Pros

Minimal bundle size
Simple syntax
Great performance

Cons

Smaller ecosystem
Fewer jobs

Common Use Cases

Component-Based Web UIsSingle-Page Applications (SPA)Interactive Widgets / EmbeddablesFull-Stack Apps (via SvelteKit)High-Performance Content Sites (via SvelteKit)UI Prototyping & Learning

Compatible CMS

Crystallize

Headless PIM and commerce

Caisy

Developer-friendly headless CMS

Cosmic

Headless CMS for any website or app

Kontent.ai

Enterprise headless CMS with AI-powered content governance at scale

Sveltia CMS

Modern replacement for Decap CMS

Webiny

Open-source serverless enterprise CMS self-hosted on AWS infrastructure

Supabase

The open source Firebase alternative

Builder.io

Drag and drop Visual CMS

Compatible Cloud Servers

Deno Deploy Free

Serverless at the edge for Deno

AWS Amplify

Build full-stack web and mobile apps

Google Cloud Run

Fully managed serverless containers

Find Svelte Experts

Looking for professional help with your Svelte project? Here are top certified agencies and developers.

Top Agencies

Alpina Tech

#1 Recommended

Craft custom, responsive websites using expert code and stunning design. Build your site with a flexible CMS and premium hosting to boost your digital presence.

FocusReactive

#1 Recommended

Web development agency with deep expertise in the headless CMS market.

QBurst

QBurst is a digital engineering company that crafts delightful client experiences through AI-driven software engineering and data solutions.

Alloy

Alloy is a marketing and transformation partner for the age of intelligence full of creative thinkers and problem solvers whose results-oriented work extends throughout the Americas, Europe and the Middle East.

10x Media

10x Media is a boutique web development agency located in Bavaria (Germany) with additional hubs in Sofia (Bulgaria) and Santiago (Chile). We’re a core team of 8 people, and we don’t just code: we combine strategy, design, development, and project management, covering everything needed to bring high-impact digital solutions to life.