vite-bundle-optimization

Optimize Vite bundle size and build performance for React apps.

Updated Oct 26, 2025

Search Tags:#performance #react #optimization #vite #bundle #code-splitting

Ready to run

npx skills add https://github.com/jcsoftdev/pulzifi-back --skill vite-bundle-optimization-jcsoftdev

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: vite-bundle-optimization
Source: https://github.com/jcsoftdev/pulzifi-back/tree/main/.claude/skills/vite-bundle-optimization
Command: npx skills add https://github.com/jcsoftdev/pulzifi-back --skill vite-bundle-optimization-jcsoftdev

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Reduce slow dev server startup and large production bundles in Vite-based projects.

Core Features & Use Cases

Avoid Barrel Imports: import from direct modules to minimize initial load.
Manual Chunk Splitting: create distinct vendor chunks for faster caching.
Dynamic Imports: load route code on demand.
Lazy Load Heavy Components: defer non-critical UI to reduce initial payload.
Preload & Compression: enable compression and preloading for performance.
Analyze & Optimize: use bundle visualizers to identify bottlenecks.
Environment-based Dead Code Elimination: prune code via import.meta.env flags.

Quick Start

Start by applying the recommended Vite config changes and plugin setups to begin optimizing your project today.

Frequently Asked Questions about vite-bundle-optimization

High-intent search queries and answers about installing and using this skill.

FAQPage Schema

How do I optimize Vite bundle size and build performance for React apps?▼

You can optimize Vite bundle size by configuring manual chunks, dynamic imports, and lazy loading heavy components to reduce initial payload. This approach significantly speeds up production builds and improves caching.

What is the best way to split vendor chunks in Vite and Rollup?▼

The best way to split vendor chunks in Vite is through manual chunk splitting configuration. This creates distinct vendor chunks for faster caching and significantly reduces the initial load size of your web app.

How do I prevent barrel imports from slowing down my Vite dev server?▼

To prevent barrel imports from slowing down your Vite dev server, import directly from specific modules instead of index files. This minimizes initial load and avoids pulling unnecessary code into the bundle.

Can I use dynamic imports and preloading for React routes in Vite?▼

Yes, you can use dynamic imports to load React route code on demand in Vite. Enabling preloading and compression alongside this ensures deferred non-critical UI is fetched efficiently without impacting initial payload.

Does Vite support environment-based dead code elimination for production builds?▼

Vite supports environment-based dead code elimination by pruning code via import.meta.env flags. This allows you to remove non-production logic and reduce the final bundle size during the build process.

Why do I need a bundle visualizer to identify bottlenecks in Vite?▼

You need a bundle visualizer to identify bottlenecks in Vite because it analyzes the compiled output and exposes large dependencies. This allows you to target specific modules for code splitting and asset optimization.