
Solid
Declarative, efficient JS library for building UIs
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SolidJS is what React would be if it were rebuilt today without the baggage. It uses JSX so React devs feel at home, but under the hood it uses fine-grained reactivity with signals — no virtual DOM diffing, no component re-renders. Only the exact DOM nodes that depend on changed data update. The result: near-vanilla-JS performance in a 7KB runtime.
If you're starting a new project where performance matters — real-time dashboards, data-heavy SPAs, anything interactive — SolidJS deserves serious consideration. React has the ecosystem. Svelte has the DX. Solid has the speed. Vue sits somewhere in between with its Composition API signals.
The catch: The ecosystem is small. You won't find a SolidJS equivalent for every React library. SolidStart (the meta-framework) is maturing but isn't at Next.js or SvelteKit levels yet. If you need a massive plugin ecosystem or are hiring React devs, the pragmatic choice is still React.
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