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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_pro
Free 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.
Start building with ProPro docs overview

What Pro adds

Every feature below ships in the public Pro gem. The license covers production use and support — not access.

React Server Components

Render React Server Components from Rails and stream their payload to the browser, shipping interactive UI with dramatically less client JavaScript.

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.

Open the live demoView source

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.

Open the live demoView source

Upgrade path

Three steps to build with Pro

  1. 1
    Add 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.

  2. 2
    Turn on the features you need

    Enable RSC, streaming SSR, fragment caching, or the Node renderer on the paths where they actually help.

  3. 3
    License 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.