React Server Components
Render React Server Components from Rails and stream their payload to the browser, shipping interactive UI with dramatically less client JavaScript.
An additive layer on open-source React on Rails
React on Rails Pro
Pro builds on the open-source gem with React Server Components, streaming SSR, concurrent and cached rendering, and a dedicated Node renderer. The gem and npm package are public — install them and start building today. A license is only required when you deploy to production.
bundle add react_on_rails_proFree to build withNo token needed for development, test, CI/CD, or staging. With no license configured, Pro keeps running and logs its license status instead of ever blocking your app. Production deployments need a paid license, which includes maintainer support.
What Pro adds
Everything below comes from the open-source stack plus the public Pro gem. There is no paywall — a license covers production use and support, not access.
Streaming SSR with Suspense
stream_react_component flushes server-rendered HTML as each Suspense boundary resolves, so first paint never waits on the slowest data on the page.
Concurrent component rendering
async_react_component renders multiple components in parallel through the Node renderer instead of one after another, cutting response time on component-heavy pages.
Immediate hydration
Components hydrate the instant their HTML streams in rather than waiting for the whole page to load, so the page becomes interactive sooner. Enabled automatically on Pro.
Streaming-aware caching
Fragment-cache rendered output — including streamed components — and add prerender caching so cache hits skip props, serialization, and JS execution entirely.
Dedicated Node renderer
A concurrent Fastify-based Node.js renderer pool delivers higher SSR throughput than single-threaded ExecJS, and powers RSC, streaming, and parallel rendering.
Code splitting + bundle caching
Loadable-component code splitting with SSR-aware bundle caching keeps large client bundles fast to build and ship.
See everything before you commit
The docs, demos, and example apps are all open. Inspect the real performance evidence and source before you talk to us about a license.
Live RSC performance demo
LocalHub, a sample marketplace built on Pro + RSC, with Lighthouse reports and bundle-size evidence you can inspect.
Open the demo dashboardMarketplace demo + performance guide
The full public source for the LocalHub demo, including the performance guide that walks through the RSC results.
Open the repositoryPro example app
A real Rails app in the repo that exercises the Node renderer, caching, and SSR workflows end to end.
Inspect the example appUpgrade path
Three steps to build with Pro
- 1Add the gem and package
Run bundle add react_on_rails_pro and add the npm package. Both are public on RubyGems and npm — no token or account required to start.
- 2Turn on the features you need
Enable RSC, streaming SSR, fragment caching, or the Node renderer on the paths where they actually help.
- 3Validate, then license for production
Confirm production rendering and performance on the paths that matter, then add a license when you deploy.
Friendly license model
Build now. License when you ship.
Try every Pro feature freely in development, test, CI/CD, and staging. With no license configured, Pro keeps running in unlicensed mode and logs its status — it never blocks your app.
Production deployments require a paid license, which includes support from the ShakaCode maintainers. Visit Pro pricing and sign up for current options.
Budget-constrained? Email justin@shakacode.com — we grant free or low-cost licenses in qualifying cases. Licenses from larger companies fund continued React on Rails development.
Questions about pricing, implementation, or a free license? Visit Pro pricing and sign up or the Pro docs landing page. Want proof first? Open the RSC performance dashboard.