Solid

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.