React vs Solid: Complete Comparison Guide
Compare React and SolidJS on reactivity, performance, ecosystem, and bundle size. Discover which UI library is the best fit for your frontend project.
React is the standard for frontend development with an unmatched ecosystem and the largest talent pool. It is the safe choice for virtually any project. SolidJS offers objectively better runtime performance and a smaller bundle thanks to fine-grained reactivity, but its ecosystem is still young. For most teams, the massive React ecosystem outweighs Solid's technical advantages. However, SolidJS is an excellent choice when performance is the deciding factor.
React
The most widely used JavaScript library for building user interfaces, developed by Meta. React has over 40% market share, a massive ecosystem, and uses a virtual DOM for efficient UI updates. With Server Components and concurrent rendering, React continues to innovate.
SolidJS
A reactive UI library that uses a similar JSX syntax to React but works without a virtual DOM. SolidJS uses fine-grained reactivity, updating only the exact DOM nodes that change. The result is an extremely small bundle (approximately 7kb) and superior runtime performance.
What are the key differences between React and SolidJS?
| Feature | React | SolidJS |
|---|---|---|
| Reactivity model | Virtual DOM with diffing algorithm and per-component re-renders | Fine-grained reactivity — direct DOM updates without virtual DOM |
| Bundle size | Approximately 40kb (gzipped) for React + ReactDOM | Approximately 7kb (gzipped) — a fraction of React |
| Performance | Good with optimization (memo, useMemo, useCallback) | Exceptional — consistently tops JS Framework Benchmarks |
| Ecosystem | The largest ecosystem in the frontend landscape | Small but growing ecosystem with essential libraries available |
| Learning curve | Familiar to most developers — extensive documentation | Low for React developers due to similar JSX syntax |
| Server Components | Fully supported via Next.js App Router | SolidStart offers server functions, but less mature than RSC |
What is the verdict on React vs SolidJS?
React is the standard for frontend development with an unmatched ecosystem and the largest talent pool. It is the safe choice for virtually any project. SolidJS offers objectively better runtime performance and a smaller bundle thanks to fine-grained reactivity, but its ecosystem is still young. For most teams, the massive React ecosystem outweighs Solid's technical advantages. However, SolidJS is an excellent choice when performance is the deciding factor.
Which option does MG Software recommend?
At MG Software, React is our primary UI framework due to its ecosystem, developer availability, and seamless integration with Next.js and TypeScript. We follow SolidJS developments with interest, especially the fine-grained reactivity that also inspires React with the React Compiler. For client projects, we recommend React unless there are specific performance requirements that Solid can better fulfill. The investment in the React ecosystem pays off in faster development and easier maintenance.
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