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ShakaStack is four open-source projects from ShakaCode that take your Rails + React app from idea to proven-fast in production — build, deploy, and prove — without the frontend chaos.
You picked Rails because it’s productive and joyful. Then the frontend got complicated — and somewhere along the way your app got slow, your config got fragile, and your bills went up.
Webpacker’s deprecated, SSR is fiddly, and React 19 / RSC feel out of reach. You’re duct-taping a frontend instead of shipping features.
Slow LCP and hydration drag down SEO and conversions — and you’ve no rigorous way to measure it or prove a fix actually worked.
Heroku bills climb, build configs rot, and every upgrade is a gamble. The stack fights you instead of working for you.
You shouldn’t have to choose between the joy of Rails and a fast, modern React frontend.
ShakaCode has been a performance-obsessed consultancy since 2011 — and we felt every one of these pains first-hand. So we built, open-sourced, and still maintain the tools that fix them, from our home base in Paia, Hawai‘i. We make slow web apps fast.
Three phases, four open-source projects — because bundling is part of building. Tap a layer to see how it moves your app forward.
Render React inside Rails — SSR, hydration, and RSC.
Open source, production-tested, and maintained by the ShakaCode team. Use one, use all four.
Render React inside Rails — SSR, hydration, and RSC.
Mount React components straight from Rails views and controllers. Server-side rendering, hydration, streaming, and React Server Components — without splitting your product into a separate frontend app.
Render components from views & controllers. Keep Rails routes, conventions, and your team.
Server rendering, hydration, and streaming paths built for mature Rails deployments.
Start free. Add Pro for RSC, higher SSR throughput, and guided support when you need it.
Webpack, the Rails way. The maintained successor to Webpacker.
Use webpack to bundle JavaScript and CSS with Rails conventions intact. Shakapacker picks up where rails/webpacker left off — actively maintained, modern defaults, and a smooth upgrade path.
Asset compilation that follows Rails conventions — manifests, fingerprinting, and the asset pipeline.
Up-to-date webpack with sensible defaults so you configure less and ship more.
A clear, supported path off the deprecated rails/webpacker.
A Heroku-style workflow on Control Plane infrastructure.
cpflow brings a Heroku-like developer experience — review apps, one-off tasks, releases, and scaling — to Control Plane. Migrate off Heroku without throwing away the workflow your team already knows.
Familiar deploy, run, and scale commands plus review apps for every pull request.
Run on flexible, cost-efficient infrastructure with room to scale well past Heroku.
Keep your release flow. Move the runtime underneath it with minimal disruption.
ShakaCode’s own framework for proving performance — rigorously.
Containerize your app, run control-vs-experiment A/B tests, and let ShakaPerf prove which changes actually make pages faster — across desktop and mobile, with regressions caught automatically.
Real control-vs-experiment perf testing across screen types — not flaky one-off Lighthouse runs.
Catches performance regressions and visual changes on your main branch before users do.
Works with any web stack, with accessibility and SEO checks built in.
Every example links to a running deployment and its repository. Evaluate the stack, compare approaches, or fork a starter.
More React on Rails demos at reactonrails.com/examples →
React on Rails lets us run React at scale inside Rails without the complexity of a separate frontend deployment — 97% Good LCP scores and 80% faster hydration across our platform.Justis Blasco · Popmenu
ShakaCode builds and maintains every project in the stack — and helps teams ship with SSR, RSC, bundling, deploys, and performance. Book a free 30-minute call.