How to Achieve Instant HMR Every Time
Make every code change feel instant
James Thomson
Author
How to Achieve Instant HMR Every Time
4th sep 2026
NeoBuild’s Hot Module Replacement is extremely fast by default. This guide shows you how to get the best possible HMR experience in any project.
What makes HMR fast in NeoBuild
NeoBuild uses native ESM and intelligent caching. This means most changes update in under 50ms, even in medium and large applications.
Best practices for instant updates
Keep your components small, avoid heavy logic in the root file, and use dynamic imports when working with large libraries.
Common issues and how to fix them
Sometimes HMR can feel slower than expected. Here are the most common reasons and simple solutions to keep it lightning fast.
Tips to maintain fast HMR
- Avoid circular dependencies - Use React Fast Refresh or Vue’s reactivity system properly - Keep node_modules clean and updated
Advanced configuration
You can fine-tune HMR behavior in neobuild.config.js if needed. Most projects don’t require any changes.
Example: Increase HMR timeout or enable detailed logging when debugging performance.
Final thoughts
With these simple practices, you can enjoy near-instant updates every time you save a file. This is one of the biggest reasons developers love working with NeoBuild.