I Built The Same App In React And Svelte — The Bundle Size Difference Was Brutal

📰 Medium · JavaScript

Compare bundle sizes of React and Svelte by building the same app in both frameworks to understand the performance difference

intermediate Published 8 May 2026
Action Steps
  1. Build a simple app in React using create-react-app
  2. Build the same app in Svelte using the Svelte template
  3. Compare the bundle sizes of both apps using tools like Webpack Bundle Analyzer
  4. Test and optimize the apps to see if the bundle size difference affects performance
  5. Analyze the results and decide which framework is best for your project based on bundle size and performance
Who Needs to Know This

Frontend developers and engineers can benefit from understanding the bundle size differences between React and Svelte to make informed decisions for their projects

Key Insight

💡 Svelte can produce significantly smaller bundle sizes than React, which can improve app performance

Share This
🚀 I built the same app in React and Svelte and the bundle size difference was brutal! 🤯

Key Takeaways

Compare bundle sizes of React and Svelte by building the same app in both frameworks to understand the performance difference

Full Article

I have shipped React for three years and last week it made me feel stupid. Continue reading on Medium »
Read full article → ← Back to Reads

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