esbuild
Advanced tools
Package description
esbuild is a fast JavaScript bundler and minifier. It compiles TypeScript and JavaScript into a single file, minifies it, and can also handle CSS and image assets. It's designed for speed and efficiency, utilizing parallelism and native Go code to achieve its performance.
Bundling JavaScript
This code bundles 'app.js' and its dependencies into a single file 'out.js'.
require('esbuild').build({
entryPoints: ['app.js'],
bundle: true,
outfile: 'out.js'
}).catch(() => process.exit(1))Minifying JavaScript
This code minifies 'app.js' to reduce file size and improve load times.
require('esbuild').build({
entryPoints: ['app.js'],
minify: true,
outfile: 'out.js'
}).catch(() => process.exit(1))Transpiling TypeScript
This code compiles a TypeScript file 'app.ts' into JavaScript and bundles it into 'out.js'.
require('esbuild').build({
entryPoints: ['app.ts'],
bundle: true,
outfile: 'out.js'
}).catch(() => process.exit(1))Serving files for development
This code starts a local server to serve files from the 'public' directory and bundles 'app.js' into 'public/out.js'.
require('esbuild').serve({
servedir: 'public',
port: 8000
}, {
entryPoints: ['app.js'],
bundle: true,
outfile: 'public/out.js'
}).then(server => {
// Server started
})Webpack is a powerful and widely-used module bundler. It offers a rich plugin ecosystem and a highly configurable build process. Compared to esbuild, webpack is more mature with more features but is generally slower due to its JavaScript-based architecture.
Rollup is another JavaScript module bundler that focuses on producing efficient bundles for modern module formats like ES modules. It's known for its tree-shaking capabilities. Rollup is typically faster than webpack but slower than esbuild.
Parcel is a web application bundler that offers zero configuration out-of-the-box. It's faster than webpack and rollup but generally not as fast as esbuild. Parcel has a simpler user experience but may not be as flexible for complex configurations.
Terser is a JavaScript parser, mangler, and compressor toolkit for ES6+. It's often used for minifying JavaScript code. While esbuild also minifies code, terser is a dedicated tool for this purpose and can be used alongside other bundlers.
Changelog
0.17.18
Fix non-default JSON import error with export {} from (#3070)
This release fixes a bug where esbuild incorrectly identified statements of the form export { default as x } from "y" assert { type: "json" } as a non-default import. The bug did not affect code of the form import { default as x } from ... (only code that used the export keyword).
Fix a crash with an invalid subpath import (#3067)
Previously esbuild could crash when attempting to generate a friendly error message for an invalid subpath import (i.e. an import starting with #). This happened because esbuild originally only supported the exports field and the code for that error message was not updated when esbuild later added support for the imports field. This crash has been fixed.
Readme
This is a JavaScript bundler and minifier. See https://github.com/evanw/esbuild and the JavaScript API documentation for details.
FAQs
An extremely fast JavaScript and CSS bundler and minifier.
The npm package esbuild receives a total of 22,758,229 weekly downloads. As such, esbuild popularity was classified as popular.
We found that esbuild demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 2 open source maintainers collaborating on the project.
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