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 adds React Server Components, streaming SSR, concurrent and cached rendering, and a dedicated Node renderer on top of the open-source gem. The gem and npm package are public — install and build today; you only need a license to 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 status instead of ever blocking your app.
What Pro adds
Every feature below ships in the public Pro gem. The license covers production use and support — not access.
Streaming SSR with immediate hydration
stream_react_component flushes server-rendered HTML as each Suspense boundary resolves, and every piece hydrates the moment it streams in — first paint never waits on the slowest data, and the page turns interactive sooner.
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.
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 it running, read the source
Both demos are public — live apps and full source. Inspect the performance evidence and the code before you talk to us about a license.
LocalHub — RSC performance demo
A marketplace built on Pro + RSC, with Lighthouse reports and bundle-size evidence you can inspect.
TanStack starter — Rails-centered React
Keep Rails at the center and use Pro for the React paths that need Node: RSC and streaming on public pages, SSR with TanStack Router and Table on app surfaces.
Upgrade path
Three steps to build with Pro
- 1Add the gem and package
Add react_on_rails_pro and the Node renderer npm package — both public on RubyGems and npm, no account needed 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.
- 3License when you deploy
Confirm production rendering and performance on the paths that matter, then add a license when you ship.
Friendly license model
Build now. License when you ship.
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.
Prefer to talk it through first? Book a 30-minute consultation.