Build tooling

Bundler

The tool that packs your many source files into a few optimized files the browser can load fast.

You write code across dozens of files and pull in packages from npm; a bundler stitches all of it together, strips out what's unused, minifies it, and outputs a small set of files a browser can serve efficiently. It's the packing crew that takes your sprawling workshop and ships one tight, labeled box. You rarely touch it directly — but when the AI adds a dependency and the app suddenly won't build, a bundler config or a bad import is usually behind it.