@esbuild/win32-x64

What is @esbuild/win32-x64?

The @esbuild/win32-x64 npm package is a binary package for the esbuild bundler and minifier tool. It is specifically compiled for Windows x64 systems. Esbuild is a fast JavaScript bundler and minifier that compiles TypeScript, JavaScript, and JSX files into a single output file. It is designed to be extremely fast and to provide a simpler and more efficient workflow for web development.

What are @esbuild/win32-x64's main functionalities?

Bundling JavaScript

This feature allows you to bundle multiple JavaScript files into a single output file, which can be used in a browser or other JavaScript environments.

require('esbuild').build({
  entryPoints: ['app.js'],
  bundle: true,
  outfile: 'out.js'
}).catch(() => process.exit(1))

Minifying JavaScript

This feature enables the minification of JavaScript code to reduce file size, which is beneficial for faster loading times in production environments.

require('esbuild').build({
  entryPoints: ['app.js'],
  minify: true,
  outfile: 'out.js'
}).catch(() => process.exit(1))

Transpiling TypeScript

This feature allows you to transpile TypeScript code into JavaScript, enabling you to use TypeScript's features while maintaining compatibility with JavaScript environments.

require('esbuild').build({
  entryPoints: ['app.ts'],
  bundle: true,
  outfile: 'out.js'
}).catch(() => process.exit(1))

JSX Support

This feature provides support for JSX syntax, commonly used in React applications, allowing you to bundle and transpile JSX files directly.

require('esbuild').build({
  entryPoints: ['app.jsx'],
  bundle: true,
  outfile: 'out.js'
}).catch(() => process.exit(1))

Other packages similar to @esbuild/win32-x64

webpack

Webpack is a powerful module bundler that can handle not only JavaScript but also assets like images, fonts, and stylesheets. It has a larger ecosystem of plugins and loaders, allowing for a highly customizable build process. Compared to esbuild, webpack is more established but generally slower due to its more complex features.

rollup

Rollup is another JavaScript module bundler that is well-suited for libraries and applications. It uses a different approach to bundling than webpack, focusing on the efficiency of the final bundle. Rollup is known for producing smaller bundles, but esbuild is typically faster in terms of build speed.

parcel

Parcel is a web application bundler that offers a zero-configuration experience. It is designed to be fast and easy to use, automatically handling transformations and dependencies. While Parcel is user-friendly and fast, esbuild often outperforms it in terms of raw build speed.

terser

Terser is a JavaScript parser, mangler, and compressor toolkit for ES6+. It is commonly used for minifying JavaScript files. Unlike esbuild, terser does not bundle files but focuses solely on minifying and optimizing JavaScript code.

README

esbuild

This is the Windows 64-bit binary for esbuild, a JavaScript bundler and minifier. See https://github.com/evanw/esbuild for details.

Changelog

0.25.9

• Better support building projects that use Yarn on Windows (#3131, #3663)

  With this release, you can now use esbuild to bundle projects that use Yarn Plug'n'Play on Windows on drives other than the C: drive. The problem was as follows:

  • Yarn in Plug'n'Play mode on Windows stores its global module cache on the C: drive
  • Some developers put their projects on the D: drive
  • Yarn generates relative paths that use ../.. to get from the project directory to the cache directory
  • Windows-style paths don't support directory traversal between drives via .. (so D:\.. is just D:)
  • I didn't have access to a Windows machine for testing this edge case

  Yarn works around this edge case by pretending Windows-style paths beginning with C:\ are actually Unix-style paths beginning with /C:/, so the ../.. path segments are able to navigate across drives inside Yarn's implementation. This was broken for a long time in esbuild but I finally got access to a Windows machine and was able to debug and fix this edge case. So you should now be able to bundle these projects with esbuild.

• Preserve parentheses around function expressions (#4252)

  The V8 JavaScript VM uses parentheses around function expressions as an optimization hint to immediately compile the function. Otherwise the function would be lazily-compiled, which has additional overhead if that function is always called immediately as lazy compilation involves parsing the function twice. You can read V8's blog post about this for more details.

  Previously esbuild did not represent parentheses around functions in the AST so they were lost during compilation. With this change, esbuild will now preserve parentheses around function expressions when they are present in the original source code. This means these optimization hints will not be lost when bundling with esbuild. In addition, esbuild will now automatically add this optimization hint to immediately-invoked function expressions. Here's an example:

  // Original code
  const fn0 = () => 0
  const fn1 = (() => 1)
  console.log(fn0, function() { return fn1() }())
  
  // Old output
  const fn0 = () => 0;
  const fn1 = () => 1;
  console.log(fn0, function() {
    return fn1();
  }());
  
  // New output
  const fn0 = () => 0;
  const fn1 = (() => 1);
  console.log(fn0, (function() {
    return fn1();
  })());
  

  Note that you do not want to wrap all function expressions in parentheses. This optimization hint should only be used for functions that are called on initial load. Using this hint for functions that are not called on initial load will unnecessarily delay the initial load. Again, see V8's blog post linked above for details.

• Update Go from 1.23.10 to 1.23.12 (#4257, #4258)

  This should have no effect on existing code as this version change does not change Go's operating system support. It may remove certain false positive reports (specifically CVE-2025-4674 and CVE-2025-47907) from vulnerability scanners that only detect which version of the Go compiler esbuild uses.