rari
| Crates.io | rari |
| lib.rs | rari |
| version | 0.7.8 |
| created_at | 2025-10-21 21:47:37.519678+00 |
| updated_at | 2026-01-23 22:03:18.955038+00 |
| description | rari: Runtime Accelerated Rendering Infrastructure - A high-performance React Server Components framework powered by Rust |
| homepage | https://github.com/rari-build/rari |
| repository | https://github.com/rari-build/rari |
| max_upload_size | |
| id | 1894502 |
| size | 7,928,369 |
Ryan Skinner (skiniks)
documentation
README
Runtime Accelerated Rendering Infrastructure
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 12x higher throughput and 2x 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:
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 for complete documentation, guides, and examples.
Documentation
Read the full documentation 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
- 2x faster response times - 1.32ms vs 2.63ms average response
- 12x higher throughput - 21,263 req/sec vs 1,760 req/sec under load
- 14x faster latency under load - 1.94ms vs 27.89ms average latency
- 66% smaller bundles - 28.1 KB vs 82.0 KB client JavaScript
- 2.6x faster builds - 1.73s vs 4.43s 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: January 14, 2026
Response Time (Single Request):
| Metric | rari | Next.js | Improvement |
|---|---|---|---|
| Average | 1.32ms | 2.63ms | 2.0x faster |
| P95 | 3.36ms | 4.06ms | 1.2x faster |
| Bundle Size | 28.1 KB | 82.0 KB | 66% smaller |
Throughput Under Load (50 concurrent connections, 30s):
| Metric | rari | Next.js | Improvement |
|---|---|---|---|
| Requests/sec | 21,263 | 1,760 | 12.1x higher |
| Avg Latency | 1.94ms | 27.89ms | 14.4x faster |
| P99 Latency | <2ms | 28ms | 14x faster |
| Errors | 0 | 0 | Stable |
Build Performance:
| Metric | rari | Next.js | Improvement |
|---|---|---|---|
| Build Time | 1.73s | 4.43s | 2.6x faster |
| Bundle Size | 433 KB | 543 KB | 20% smaller |
All benchmarks are reproducible. See benchmarks/ for methodology and scripts.
Contributing
We welcome contributions! Here's how you can help:
- Report Bugs - Found an issue? Open a bug report
- Suggest Features - Have ideas? Share your suggestions
- Improve Docs - Help make our documentation better
- Submit PRs - Check out our Contributing Guide
Community
- Discord - Join our community
- GitHub - Star the repo
- Documentation - rari.build/docs
License
MIT License - see LICENSE for details.