SolidStart

What is SolidStart?

SolidStart is the official full-stack meta-framework for SolidJS, giving Solid's fine-grained reactivity model (no virtual DOM, updates target exact DOM nodes rather than re-rendering component trees) the same file-based routing, SSR, and data-loading conveniences React-based frameworks like Next.js and Remix offer. Because Solid skips virtual DOM diffing entirely, apps built on it tend to stay fast even as state updates get frequent and complex, which is the main reason people reach for it over a React framework.

Key features

• Fine-grained reactivity: state changes update only the exact DOM nodes affected, not a re-rendered component subtree
• File-based routing and nested layouts, similar in shape to Next.js and Remix for developers coming from those frameworks
• Server-side rendering, streaming, and API routes built in, so it's a genuine full-stack option, not just a client library
• JSX syntax that reads almost identically to React, easing the learning curve for React developers curious about Solid
• A notably small runtime and bundle size compared to React-based equivalents

Who it's for

Worth considering when a state-heavy, real-time, or performance-critical UI is the priority and you're willing to trade React's massive ecosystem for a smaller but genuinely faster runtime. Not the pick if you need the widest possible pool of pre-built libraries and community resources, since Solid's ecosystem is a fraction of React's.

Pricing

Free and open source, with no paid tier; you only pay for wherever you host the resulting app.