SolidJS vs React for Solo Developers

Comparing SolidJS and React for solo developers. Features, pricing, pros and cons, and which one to pick for your next project.

Quick Comparison

Feature	SolidJS	React
Type	Reactive UI library (fine-grained signals, no virtual DOM)	UI library (virtual DOM)
Latest version	solid-js 1.9.13 (published 2026-05-15)	react 19.2.6 (published 2026-05-06)
License	MIT, open source	MIT, open source
Pricing	Free	Free
GitHub stars	35,561	245,313
npm weekly downloads	2.41 million	129.3 million
Core gzip size	8.1 kB (solid-js)	2.84 kB (react) plus react-dom client runtime
Meta-framework	SolidStart (@solidjs/start 1.3.2, 59.3k weekly downloads)	Next.js (40.1 million weekly downloads)
Mobile path	None first-party	React Native 0.85.3 (8.9 million weekly downloads)
Learning Curve	Moderate (looks like React but isn't)	Moderate (JSX, hooks)
Best For	Performance-critical apps, small bundles	Complex UIs with large ecosystem needs
Solo Dev Rating	7/10	8/10

SolidJS Overview

SolidJS looks like React at first glance. JSX syntax, components, props, effects. But underneath, it's a completely different paradigm. SolidJS uses fine-grained reactivity instead of a virtual DOM. Components run once (not on every render), and only the specific DOM nodes that depend on changed data get updated.

The performance results are impressive. SolidJS consistently tops the JS Framework Benchmark. It's faster than React, faster than Vue, and comparable to vanilla JavaScript in many scenarios. Bundle sizes are tiny because there's no virtual DOM diffing engine to ship.

I've experimented with SolidJS, and the "aha" moment comes when you realize components don't re-render. You create a signal, use it in JSX, and SolidJS surgically updates only the text node or attribute that depends on that signal. No useMemo, no useCallback, no dependency arrays. Reactivity just works.

React Overview

React is the most popular UI library on the planet. It has the largest ecosystem, the most third-party libraries, the most job listings, and the most community resources. You can find a React solution for literally any web development problem.

React's virtual DOM approach re-renders components when state changes, then diffs the virtual tree to update the real DOM efficiently. It works well for most applications, but the abstraction adds overhead. Hooks (useState, useEffect, useMemo) give you control over state and side effects, though dependency arrays are a common source of bugs.

The React ecosystem is its superpower. Next.js for full-stack. React Native for mobile. Thousands of UI libraries, form solutions, animation tools, and state managers. When you're building alone, this ecosystem means you're never starting from scratch.

Key Differences

Reactivity model. This is the fundamental difference. React re-renders entire components and diffs a virtual DOM. SolidJS tracks fine-grained dependencies and updates individual DOM nodes. SolidJS is faster, but React's model is well-understood and has more tooling support.

The "looks like React" trap. SolidJS uses JSX, but the mental model is different. Destructuring props breaks reactivity. Components run once, not on every state change. Conditional rendering works differently. React developers will write SolidJS code that looks right but behaves wrong until they internalize these differences.

Ecosystem size. React's ecosystem dwarfs SolidJS by orders of magnitude. SolidJS has SolidStart (its meta-framework) and a handful of community libraries. React has thousands of packages for every conceivable need. For solo developers, this ecosystem gap translates to real development time.

Performance. SolidJS is objectively faster in benchmarks. Fine-grained reactivity eliminates unnecessary work. But for most web applications, React is fast enough. The performance difference matters for real-time data dashboards, complex animations, or apps with thousands of reactive elements. For a typical SaaS or content app, you won't notice.

Job market and community. React dominates the job market. SolidJS is niche. If you're building skills that might lead to employment, React is the pragmatic choice. If you're building a solo product and don't care about the job market, SolidJS offers a better reactive model.

By the Numbers (2026)

The two libraries are both free and MIT licensed, so the real signal lives in adoption, release cadence, and footprint. Here is what the registries and repos actually report as of late May 2026.

Versions and release cadence. The current solid-js release is 1.9.13, published 2026-05-15. SolidJS has stayed on the 1.x line since 2021, which is part of its pitch: the core API is stable and rarely churns. React's current release is 19.2.6, published 2026-05-06, with the big 19.0.0 milestone (Actions, the use hook, and the React Compiler story) having landed 2024-12-05. React ships patch releases far more often, partly because it carries a much larger surface area.

Adoption gap. This is where the distance is hard to overstate. In the week of 2026-05-22 to 2026-05-28, react pulled 129.3 million npm downloads against solid-js at 2.41 million. That is roughly 54 React installs for every SolidJS install. On GitHub, React sits at 245,313 stars versus 35,561 for SolidJS. SolidJS is genuinely popular for a niche library. It is still a rounding error next to React's install base.

Ecosystem depth, measured through the meta-frameworks. A solo dev rarely ships bare React or bare SolidJS, so the meta-framework numbers tell the practical story. Next.js drew 40.1 million weekly downloads. SolidStart (@solidjs/start) drew 59.3 thousand. React Native, the mobile escape hatch SolidJS has no first-party answer to, drew 8.9 million weekly downloads on its own. When the monorepo CLAUDE notes that React's ecosystem "dwarfs SolidJS by orders of magnitude," that is not hyperbole. It is a 600x gap on the meta-framework alone.

Footprint. SolidJS still wins the thing it advertises. The solid-js package weighs 21.33 kB minified and 8.1 kB gzipped per bundlephobia. The react package alone is 7.42 kB minified and 2.84 kB gzipped, but React is not usable in a browser without react-dom, whose client runtime adds the bulk of a real React bundle (a full React 19 app commonly lands around 50 to 55 kB gzipped before your own code, per community measurements). SolidJS ships one small package and compiles your JSX to direct DOM updates, so a Solid app's framework overhead stays close to that 8 kB figure. For a landing page or a content app on a slow connection, that delta is real.

Which One Ships Faster for a Solo Dev

Both are free, so the only currency that matters here is your time. The decision is not about license or price. It is about how much you build yourself versus pull off a shelf.

Count the shelf. Tally the third-party pieces your product needs that you do not want to hand-build: a date picker, a data table, a rich text editor, a charting layer, a drag-and-drop kit, an auth UI, a form library, a component system. For each one, ask whether a mature, maintained option exists. With React, the answer is almost always yes, several times over, and the 129.3 million weekly downloads mean the popular ones have been battle-tested by an enormous user base. With SolidJS, you will find solid primitives and a growing set of community libraries, but for several of those slots you are either porting, wrapping, or writing it yourself. Each self-built widget is a day or three you are not spending on your actual product.

Count the answers. When you hit a wall at midnight, the fix is usually a search away. React's size means almost every error you will ever see has a Stack Overflow thread, a GitHub issue, or a blog post behind it. SolidJS has good docs and a sharp Discord, but a smaller corpus of prior art. If you learn fast from official docs and enjoy reading source, that gap shrinks. If you lean on "someone has hit this before," React shortens your nights.

Count the future. React Native (8.9 million weekly downloads) is a real path to mobile that reuses your mental model. SolidJS has no first-party mobile story. If there is any chance your solo product wants an app later, React keeps that door open for free.

The honest framework: SolidJS ships faster for the parts you write, because the reactivity model removes whole categories of busywork (no dependency arrays, no useMemo, no re-render debugging). React ships faster for the parts you assemble, because the shelf is stocked 600 times deeper. For most solo products, more of the work is assembly than authorship, which is why the verdict lands where it does.

When to Choose SolidJS

Performance is a genuine, measurable requirement for your app
You want fine-grained reactivity without the virtual DOM overhead
You enjoy learning new paradigms and understanding how things work
Bundle size matters for your deployment target
You're building a solo product and don't need a massive ecosystem

When to Choose React

You want the largest possible ecosystem of libraries and solutions
You might hire React developers in the future
You want React Native as a path to mobile development
You need specific integrations that only exist in React
You value community size and available learning resources

The Verdict

React is the safer choice for solo developers. The 8/10 vs 7/10 rating reflects the ecosystem advantage, not a quality judgment. SolidJS is a technically superior reactive library with faster rendering and a cleaner mental model. But "technically superior" doesn't help when you need a date picker at 1 AM and the only option is building one from scratch.

If you're working on a performance-critical project and you're willing to build more yourself, SolidJS is worth learning. The reactive model is genuinely better, and the community, while small, is passionate. But for most solo developers shipping products, React's ecosystem advantage means faster development, fewer custom solutions, and more time spent on your actual business logic. Pick React unless you have a specific reason not to.