Why Enterprise Teams are Moving from Create React App to Vite/Rspack in 2026

If you are a React developer in 2026, opening a legacy project that still relies on react-scripts (Create React App) feels like stepping into a time machine—and not the fun kind.

You know the feeling: you type npm start, and then you have enough time to go brew a coffee, check your emails, and maybe even water the office plants before the development server is ready. For years, Create React App (CRA) was the gold standard. It democratized React development by hiding complex Webpack configurations behind a single dependency.

But today, CRA is effectively dead technology.

With the React team officially advising against it and the 2025 "sunsetting" announcement still fresh in our minds, enterprise teams are scrambling to migrate. The question isn't if you should move, but where you should move.

In 2026, the battle for the "Second Brain" of your React architecture has narrowed down to two heavyweights: Vite and Rspack. Here is why enterprise teams are abandoning CRA and how they are choosing between these two modern successors.

The "Coffee Break" Problem: Why CRA Failed

To understand the solution, we must understand the problem. CRA was built on Webpack, a powerful but aging bundler.

Webpack works by bundling your entire application before the server starts. If your enterprise app has 5,000 components, Webpack has to read, transform, and bundle all 5,000 of them every time you start the dev server. This is why your startup times crept up from 10 seconds to 5 minutes as your app grew.

By 2026 standards, this latency is unacceptable. Modern infrastructure demands instant feedback loops. Developers cost too much to spend 20% of their day waiting for progress bars.

Contender 1: Vite (The New Standard)

Vite (French for "quick") changed the game by rethinking how a dev server should work. Instead of bundling the whole app, Vite leverages Native ES Modules in the browser.

How It Works

When you import a file in Vite, the browser requests it directly. Vite transforms that specific file on demand and serves it. It doesn't care if you have 100 components or 10,000; it only processes what is currently on your screen.

Why Teams Choose Vite

• Instant Server Start: Usually under 300ms, regardless of project size.
• Lighting Fast HMR: Hot Module Replacement (saving a file and seeing changes) is instantaneous.
• Rich Ecosystem: By 2026, the Vite plugin ecosystem has surpassed Webpack in vibrancy.

The Verdict: For greenfield projects (new apps) or teams willing to refactor legacy configuration, Vite is the default choice.

Contender 2: Rspack (The Enterprise Heavyweight)

While Vite is excellent, it has a "kryptonite": it is not Webpack.

Many enterprise teams have spent ten years writing complex Webpack configurations—custom loaders for proprietary file formats, specific proxy rules, or intricate code-splitting logic. Moving these to Vite requires a complete rewrite of the build pipeline.

Enter Rspack (Rust-based Pack).

Rspack is designed to be a drop-in replacement for Webpack, but written in Rust. It promises to support the vast majority of the Webpack API but runs 5-10x faster.

Why Enterprises Choose Rspack

• Webpack Compatibility: You can often keep your existing webpack.config.js logic with minimal changes.
• Module Federation: Rspack has first-class support for Module Federation 2.0, which is critical for the "Micro-Frontend" architectures popular in large organizations.
• CI/CD Cost Reduction: Because it compiles so fast (using multiple CPU cores efficiently), it shaves minutes off production builds in CI pipelines, saving companies thousands of dollars in cloud compute costs.

The Verdict: For massive legacy monoliths or micro-frontend setups that rely on Webpack features, Rspack is the migration path of least resistance.

The Migration Strategy for 2026

If you are tasked with moving a massive repo off CRA, do not try to do it all in one afternoon. Here is the roadmap successful teams use.

Path A: The "Clean Break" (Migrating to Vite)

Best for: Teams who want to modernize their stack and don't have heavy custom Webpack configs.

1. Run the Auto-Migrator: Use tools like bunx vite-migration-tool to handle the basics (moving index.html, updating scripts).
2. Fix Environment Variables: Vite uses import.meta.env instead of process.env. You will need to find-and-replace these.
3. Update Extensions: Vite is stricter about extensions. You must import App.jsx explicitly, not just App.

Path B: The "Soft Landing" (Migrating to Rsbuild)

Best for: Teams with complex setups who want speed without breaking everything.

Rsbuild is an abstraction over Rspack that mimics the ease of CRA. It is widely considered the spiritual successor to CRA for enterprise.

1. Install Rsbuild: Replace react-scripts with @rsbuild/core.
2. Zero Config Start: largely, Rsbuild honors the "convention over configuration" style of CRA.
3. Enjoy the Speed: You often get a 10x build speed improvement just by swapping the dependency, with no code changes required.

Why This Matters for Your Career

As a Senior Developer or Architect in 2026, leading a migration away from CRA is a high-impact resume item. It demonstrates that you understand Developer Experience (DX) and Infrastructure Costs.

• DX: Happy developers ship faster. Removing the 2-minute wait time significantly improves morale.
• Cost: Faster builds mean cheaper CI/CD bills.

FAQ

Q: Is Create React App officially deprecated?

Yes. As of the major documentation updates in recent years, the React team no longer recommends CRA. They recommend frameworks like Next.js or build tools like Vite/Parcel/Rsbuild.

Q: Can I use Jest with Vite?

Yes, but the community has largely moved to Vitest. It is API-compatible with Jest but runs natively in Vite, making it much faster.

Q: What if I ejected from CRA?

If you ejected, you essentially have a raw Webpack configuration. Rspack is your best bet here, as it will understand that ejected configuration much better than Vite will.

Conclusion

The era of "one tool to rule them all" is over. In 2026, the choice between Vite and Rspack depends on your history.

If you are building the future from scratch, choose Vite. It is the standard, lightweight, and incredibly fast.

If you are carrying the weight of the past (large legacy codebases, complex Webpack configs), choose Rspack. It gives you the performance of the future without requiring you to rewrite the past.

Whichever you choose, the goal is the same: delete react-scripts from your package.json and never look back.