Svelte

Svelte compiles declarative components into minimal vanilla JavaScript, utilizing explicit Runes for fine-grained reactivity without Virtual DOM overhead.

When to Use

• High Performance defaults: Svelte apps are tiny and fast by default.
• Embedded Apps: Great for widgets/embeds because of small bundle size.
• Simplicity: HTML, CSS, and JS in one file, with very little boilerplate.

Quick Start

<script>
  let count = $state(0);
  let double = $derived(count * 2);