react-router vs wouter

react-router is the de facto standard for declarative routing in React applications, built by the creators of React itself. Its primary audience comprises large-scale applications and teams that require a robust, feature-rich, and highly configurable routing solution. It excels in managing complex navigation hierarchies, nested routes, and dynamic URL parameters with a comprehensive API designed for flexibility.

wouter offers a minimalist and extremely lightweight approach to routing in React. It is ideal for developers seeking a simple, efficient solution with minimal overhead, particularly in performance-sensitive applications or smaller projects. Its focus on core routing functionality makes it an attractive option for those who prefer to avoid larger dependencies or complex configurations.

A key architectural distinction lies in their API design and underlying philosophy. react-router employs a component-based API where routing logic is deeply integrated into the component tree using components like `<Route>`, `<Routes>`, and `<Link>`. This declarative approach embeds routing directly within the UI structure, promoting colocation of routing and component logic.

In contrast, wouter leverages a hook-based API, abstracting routing logic away from individual components. It utilizes hooks such as `useLocation`, `useNavigate`, and `useRoute` to manage routing state and actions, allowing for more dispersed but equally effective control over navigation. This hook-centric design aligns well with modern React functional component patterns.

Developer experience significantly differs due to their feature sets and philosophies. react-router, while powerful, can present a steeper learning curve due to its extensive options and concepts like route matching and outlet contexts. Excellent TypeScript support is provided, but navigating its full capabilities requires dedicated learning. wouter, being minimalist, offers an immediate and intuitive developer experience. Its simplicity reduces the learning curve dramatically, and it also boasts strong TypeScript support, ensuring type safety for its minimal API surface.

Performance and bundle size are areas where wouter clearly distinguishes itself. With a gzipped bundle size of just 5.6 kB compared to react-router's 66.9 kB, wouter provides a substantial advantage for projects where every kilobyte matters. This miniature footprint makes wouter an excellent choice for applications prioritizing fast initial load times or operating within strict asset budgets.

Practically, you should pick react-router for ambitious single-page applications (SPAs) with intricate navigation flows, such as e-commerce platforms, dashboards, or content-heavy sites where advanced features like code-splitting by route and nested layouts are essential. Its mature ecosystem and wide adoption mean extensive community support and readily available examples for complex scenarios.

Conversely, wouter is the superior choice for smaller projects, micro-frontends, or performance-critical applications where a lean dependency is paramount. If your routing needs are relatively straightforward—basic page navigation, simple parameter handling, and minimal nesting—wouter's efficiency and ease of use will likely be a better fit. It is also a strong contender when integrating routing into existing applications without wanting to introduce a large dependency.

An often overlooked aspect is the implicit ecosystem around these libraries. react-router benefits from being part of a larger React ecosystem narrative, often being the default assumption for routing in many React tutorials and starters. This wide integration means more third-party tools and libraries might offer direct support or expect its usage. wouter, while growing, is more of a standalone, focused utility, meaning its integrations are typically more direct and require less abstraction, fitting into a more "build your own" philosophy.