SolidJS FrontendFine-grained reactivity, truly no virtual DOM
SolidJS delivers React-like developer ergonomics with genuinely better performance — no VDOM, fine-grained reactive primitives, and SolidStart for full-stack apps with SSR and file-based routing.
SolidJS is a reactive JavaScript framework that compiles your components into fine-grained DOM updates — no virtual DOM, no component re-renders, just surgical updates to exactly the DOM nodes that changed. It offers a React-like JSX developer experience but with fundamentally better performance characteristics. SolidStart provides the full-stack story with SSR, file-based routing, and server functions. SolidJS consistently tops JS framework benchmarks, making it ideal for performance-critical applications where every millisecond matters.
Quick start
npx degit solidjs/templates/ts my-app
cd my-app
npm install
npm run devRead the full documentation at www.solidjs.com
Fine-grained reactivity
Solid's signals update only the exact DOM nodes that changed — no component re-renders, ever.
SolidStart SSR
File-based routing, server functions, and streaming SSR — the full-stack Solid experience.
JSX without React
Familiar JSX syntax that compiles to direct DOM operations — zero runtime overhead.
Top benchmark performance
Consistently among the fastest JS frameworks in independent benchmarks — real-world and synthetic.
Primitives over abstractions
Signals, effects, and memos compose naturally — build your own abstractions on solid foundations.
Tiny bundle size
The Solid runtime is under 7KB gzipped — your code dominates the bundle, not the framework.
Why it's hard
Reactive primitives differ from React patterns
Solid's signals and effects look similar to React hooks but behave differently — destructuring props breaks reactivity, and components run once (not on every render). This trips up React developers.
Smaller ecosystem and community
SolidJS has fewer third-party libraries, component kits, and Stack Overflow answers than React or Vue. Teams may need to build more custom solutions.
SolidStart maturity
SolidStart is newer than Next.js or SvelteKit. While functional, it has fewer deployment adapters, less documentation for edge cases, and a smaller community of production users.
Mental model shift for conditional rendering
Solid uses <Show>, <For>, and <Switch> control-flow components instead of JavaScript expressions in JSX. This is more performant but requires learning Solid-specific patterns.
Best practices
Never destructure props
In Solid, destructuring props breaks reactivity tracking. Always access props via props.name or use the mergeProps/splitProps helpers to maintain reactive bindings.
Use createResource for async data
Solid's createResource primitive handles async data fetching with built-in Suspense integration — loading states, error boundaries, and caching in one API.
Prefer control-flow components over ternaries
<Show>, <For>, and <Switch> components enable Solid to optimize DOM updates at compile time. They're not just conventions — they're performance optimizations.
Start with SolidStart for full-stack apps
SolidStart provides SSR, file-based routing, and server functions. Don't manually wire up a Solid SPA when SolidStart gives you a production-ready foundation.
Frequently asked questions
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