<a href="https://rari.build" target="_blank">
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> Runtime Accelerated Rendering Infrastructure
[](https://www.npmjs.com/package/rari)
[](https://opensource.org/licenses/MIT)
[](https://discord.gg/GSh2Ak3b8Q)
**rari** is a high-performance React Server Components framework powered by a Rust runtime. Built for performance, scalability, and developer experience.
With proper app router support, true server-side rendering, and correct RSC semantics, rari delivers 46.5x higher throughput and 9.1x faster response times than Next.js.
## Features
- **App Router** - File-based routing with layouts, loading states, and error boundaries
- **True Server-Side Rendering** - Pre-rendered HTML with instant hydration
- **React Server Components** - Server components by default, client components when you need them
- **Rust-powered runtime** - Persistent runtime for maximum performance
- **Zero-config setup** - Works out of the box with pre-built binaries
- **Hot module reloading** - Instant feedback during development
- **Universal NPM package support** - Use any npm package seamlessly
- **TypeScript-first** - Full type safety across server/client boundary
- **Cross-platform** - Supports macOS, Linux, and Windows
- **Streaming SSR** - Progressive rendering with Suspense boundaries
- **Loading States** - Automatic loading skeletons during navigation
## Quick Start
Create a new rari application in seconds:
```bash
npm create rari-app@latest my-app
cd my-app
npm run dev
```
That's it! Your app will be running at `http://localhost:5173`.
Visit [rari.build/docs](https://rari.build/docs) for complete documentation, guides, and examples.
## Documentation
**[Read the full documentation](https://rari.build/docs)** to learn more about:
- Getting started with rari
- App Router and file-based routing
- Server Components and Client Components
- Server Actions and data mutations
- Streaming SSR and Suspense
- Deployment and production optimization
## Why rari?
### Performance That Matters
- **9.1x faster response times** - 0.43ms vs 3.92ms average response
- **46.5x higher throughput** - 74,662 req/sec vs 1,605 req/sec under load
- **46.6x faster latency under load** - 0.67ms vs 31.17ms average latency
- **53% smaller bundles** - 264 KB vs 562 KB client JavaScript
- **3.7x faster builds** - 0.93s vs 3.47s production builds
### Developer Experience
- **App Router** - File-based routing with automatic code splitting
- **Zero configuration** - Create projects instantly with `create-rari-app`
- **Hot module reloading** - See changes instantly during development
- **Full TypeScript support** - Complete type safety across server/client boundary
- **Correct RSC semantics** - Server components by default, `'use client'` for interactivity
- **Cross-platform** - Works on macOS, Linux, and Windows
## Performance
rari delivers exceptional performance that significantly outperforms traditional React frameworks:
### Head-to-Head Comparison vs Next.js
> Benchmarks last updated: February 5, 2026
**Response Time (Single Request):**
| **Average** | **0.43ms** | 3.92ms | **9.1x faster** |
| **P95** | 0.67ms | 4.55ms | **6.8x faster** |
| **Bundle Size** | 264 KB | 562 KB | **53% smaller** |
**Throughput Under Load (50 concurrent connections, 30s):**
| **Requests/sec** | **74,662** | 1,605 | **46.5x higher** |
| **Avg Latency** | **0.67ms** | 31.17ms | **46.6x faster** |
| **P95 Latency** | **1.15ms** | 38.93ms | **33.9x faster** |
| **Errors** | 0 | 0 | Stable |
**Build Performance:**
| **Build Time** | **0.93s** | 3.47s | **3.7x faster** |
| **Bundle Size** | 264 KB | 562 KB | **53% smaller** |
All benchmarks are reproducible. See [benchmarks/](https://github.com/rari-build/benchmarks) for methodology and scripts.
## Contributing
We welcome contributions! Here's how you can help:
- **Report Bugs** - Found an issue? [Open a bug report](https://github.com/rari-build/rari/issues/new)
- **Suggest Features** - Have ideas? [Share your suggestions](https://github.com/rari-build/rari/discussions)
- **Improve Docs** - Help make our documentation better
- **Submit PRs** - Check out our [Contributing Guide](.github/CONTRIBUTING.md)
## Community
- **Discord** - [Join our community](https://discord.gg/GSh2Ak3b8Q)
- **GitHub** - [Star the repo](https://github.com/rari-build/rari)
- **Documentation** - [rari.build/docs](https://rari.build/docs)
## Sponsors
rari is made possible by the support of these companies:
<div>
<a href="https://get.neon.com/KDQudHN" target="_blank">
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<source media="(prefers-color-scheme: dark)" srcset="https://neon.com/brand/neon-logo-dark-color.svg">
<source media="(prefers-color-scheme: light)" srcset="https://neon.com/brand/neon-logo-light-color.svg">
<img width="250px" alt="Neon - Serverless Postgres" src="https://neon.com/brand/neon-logo-dark-color.svg">
</picture>
</a>
</div>
**[Neon](https://get.neon.com/KDQudHN)** - Serverless Postgres. Autoscaling, branching, and scale to zero.
---
Interested in sponsoring rari? [Get in touch](https://github.com/rari-build/rari/discussions) or support us on [GitHub Sponsors](https://github.com/sponsors/skiniks).
## License
MIT License - see [LICENSE](LICENSE) for details.