Qwik Has a Free Framework That Loads Instantly — Zero Hydration, Resumable Apps, O(1) Startup

The Hydration Problem

React SSR sends HTML, then re-executes ALL JavaScript to make it interactive. A complex page? 2-5 seconds of hydration where buttons don't work.

Qwik never hydrates. It sends HTML with tiny event listeners. JavaScript loads only when the user interacts — and only the code for THAT interaction.

What Qwik Gives You

Resumability Instead of Hydration

import { component$, useSignal } from '@builder.io/qwik';

export const Counter = component$(() => {
  const count = useSignal(0);

  return (
    <button onClick$={() => count.value++}>
      Count: {count.value}
    </button>
  );
});

The $ suffix marks lazy-loading boundaries. This button's click handler loads ONLY when clicked.

Automatic Code Splitting

Every $ function is a separate chunk:

• onClick$ → loads on click
• useVisibleTask$ → loads when element is visible
• useTask$ → loads on server

You don't configure code splitting. Qwik does it automatically at the function level.

Server Functions

import { routeLoader$ } from '@builder.io/qwik-city';

export const useProducts = routeLoader$(async () => {
  const products = await db.products.findMany();
  return products;
});

export default component$(() => {
  const products = useProducts();
  return (
    <ul>
      {products.value.map(p => <li key={p.id}>{p.name}</li>)}
    </ul>
  );
});

Forms (Server Actions)

import { routeAction$, Form } from '@builder.io/qwik-city';

export const useAddItem = routeAction$(async (data) => {
  await db.items.create({ name: data.name });
  return { success: true };
});

export default component$(() => {
  const action = useAddItem();
  return (
    <Form action={action}>
      <input name="name" />
      <button type="submit">Add</button>
    </Form>
  );
});

Performance

Metric	React (Next.js)	Qwik
JS sent on load	200-500KB	<5KB
Time to Interactive	2-5s	<0.5s
Hydration time	1-3s	0s

Quick Start

npm create qwik@latest
cd my-app
npm start

Why This Matters

Hydration is a workaround, not a solution. Qwik proves that web apps can be interactive instantly — with zero JavaScript on initial load.

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