Solid.js Has a Free API You Should Know About

Solid.js is a reactive JavaScript framework that delivers React-like DX with truly reactive primitives — no virtual DOM, no re-renders, just surgical DOM updates.

Why Solid.js Outperforms React

A team had a data-heavy dashboard in React that stuttered on every update — re-rendering 500+ components on each state change. They rewrote it in Solid.js. Same codebase structure, but updates were instant — Solid only touches the exact DOM nodes that changed.

Key Features:

• Fine-Grained Reactivity — No virtual DOM diffing
• Familiar JSX — React-like syntax, different execution model
• Tiny Bundle — ~7KB gzipped
• No Re-Renders — Components run once, only signals update
• Compiled — Optimized at build time

Quick Start

npx degit solidjs/templates/ts my-app
cd my-app && npm install && npm run dev

Signals (State)

import { createSignal } from "solid-js"

function Counter() {
  const [count, setCount] = createSignal(0)

  return (
    <button onClick={() => setCount(count() + 1)}>
      Count: {count()}
    </button>
  )
}

Derived State

const [firstName, setFirstName] = createSignal("John")
const [lastName, setLastName] = createSignal("Doe")
const fullName = () => `${firstName()} ${lastName()}` // Automatically reactive!

Why Choose Solid.js

1. Best-in-class performance — fastest framework in JS Framework Benchmark
2. React-like DX — easy migration path
3. True reactivity — predictable, efficient updates

Check out Solid.js docs to get started.

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