SolidJS vs Svelte
Two UI library (with Vite) options for frontend framework. When each fits, what it costs, who moves from one to the other, and what makers who chose it say.
Which fits you
- Fast, small interactive apps written in JSX, where signals update only the parts of the page that change.
Use it whenYou like React's JSX but want finer-grained updates and smaller bundles.
Trade-offA much smaller ecosystem of components and examples than React, and React libraries don't work in it.
- Interactive apps and widgets with little boilerplate, compiled to small client bundles.
Use it whenBundle size matters, or you want less code per component than React.
Trade-offSmaller component ecosystem than React, and Svelte 5 changed the reactivity syntax, so older tutorials and AI suggestions may use the previous style.
At a glance
| Used by | 4 makers' products · 47 open-source projects | 42 makers' products · 102 open-source projects |
|---|---|---|
| Downloads | 3.6M/wk+32% vs npm | 5.4M/wk−27% vs npm |
| Pricing | Free (open source). | Free (open source, MIT). |
| Free tier | Yes | Yes |
| Open source | Yes · self-hostable | Yes |
What makers say
Makers on using it for frontend framework, from Product Hunt and Starter Story interviews, each linked to the source. Products with a page of their own and fuller notes first.
Our dashboard is written in SolidJS, because we're all about that extra performance in every little corner of our product.
SolidJS gave us the performance and fine-grained reactivity we needed for the frontend. Its simple mental model and blazing speed made it easy to ship an interactive UI without the overhead, while still enjoying a great developer experience.
SvelteKit is the web framework underneath Evidence. We've loved working with Svelte and watching it evolve over the past few years. The community has helped our project a ton.
Svelte compiles to vanilla JavaScript instead of shipping a runtime, so our landing page and client app load fast, stay small, and don't drag a virtual DOM around just to update a button.
I went with Svelte because I heard a lot of React devs usually like Svelte better than React. Svelte was my first JS framework, and it was a pretty good experience overall.
Loved and watch-outs
Themes that recur in makers' words and Hacker News comments, each linked to what it summarises.

