vite HMR is silently the reason ur laptop fan wont stop

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Vite's HMR feature can cause high CPU usage and laptop fan noise, learn how to identify and fix the issue

intermediate Published 21 May 2026
Action Steps
  1. Check Vite's HMR settings using the 'vite --help' command to understand its configuration options
  2. Run 'vite --no-hmr' to temporarily disable HMR and see if it resolves the issue
  3. Configure Vite to use a more efficient HMR strategy, such as 'vite.config.js' with 'hmr: { overlay: false }'
  4. Test your app with the new HMR configuration to ensure it doesn't cause high CPU usage
  5. Compare the CPU usage with and without HMR to determine the best approach for your project
Who Needs to Know This

Developers working on React apps with Vite can benefit from this knowledge to improve their development experience and reduce distractions

Key Insight

💡 Vite's HMR feature can cause high CPU usage, leading to laptop fan noise, and can be configured or disabled to resolve the issue

Share This
🔥 Did you know Vite's HMR can cause laptop fan noise? 🤔 Learn how to identify and fix the issue! #Vite #HMR #React
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