rollupify

library0.5.1jsnpmunverified

A Browserify transform that applies Rollup to convert ES6/ES2015 modules into a single CommonJS module, enabling tree-shaking and scope-hoisting for smaller bundles. The current stable version is 0.5.1. This package is unmaintained and considered a legacy hack for migrating from Browserify to Rollup; most users should instead use Rollup directly with rollup-plugin-commonjs and rollup-plugin-node-resolve. Its key differentiator is seamless integration with the Browserify pipeline, applying Rollup before other transforms like babelify. However, it only works on ES6 import/export statements, leaving require() calls untouched. Sourcemap support requires --debug flag.

devops

npm install rollupify

github ↗package ↗

INSTALL

IMPORT

SIG · ROLLUPIFY

rollupify

devopsjavascriptv0.5.1

Install

—

Import

—

Disk

—

Pass rate

0/ 6

Env Coverage0 / 6

glibc

18–22

musl

18–22

Install & Compatibility

Where this runs

tested against v? · npm install

Install × environment matrix

Each cell = how many times install + import succeeded across repeated harness runs. Partial = flaky.
glibc = Debian/Ubuntu slim · musl = Alpine Linux

musl

node 18–223 runs

build_error

glibc

node 18–223 runs

build_error

Code

Verified usage

Verified import paths — ran on the pinned version, not inferred.

default

✓ const rollupify = require('rollupify')

✗ import rollupify from 'rollupify'

CJS-only; no ESM exports. Use require() to load the transform.

transform

✓ b.transform('rollupify', { config: { ... } })

✗ b.transform('rollupify', {})

Second argument may include rollup config options; empty object is valid.

package.json transform

✓ "browserify": { "transform": ["rollupify"] }

✗ "transform": ["rollupify"]

Must be under browserify key in package.json, not top-level.

Basic usage of rollupify with Browserify command line to transform ES6 modules into a bundled CommonJS output.

// Install npm install rollupify // index.js import hello from './hello'; console.log(hello); export default hello; // hello.js export default "hello world"; // Command line browserify -t rollupify index.js > output.js // Or with custom rollup.config.js // browserify -t [ rollupify --config rollup.config.js ] index.js > output.js

Debug

Known issues

deprecatedPackage is marked as unmaintained and no longer actively developed.

fix

Migrate to a pure Rollup setup with rollup-plugin-commonjs and rollup-plugin-node-resolve.

affects: >=0.1

breakingWorks only on ES6 import/export statements. require() calls are left untouched.

fix

Convert all require() calls to import/export if you want them bundled.

affects: >=0.1

gotchaWhen using with babelify, rollupify must be applied first.

fix

Specify transforms in order: rollupify then babelify.

affects: >=0.1

gotchaSourcemaps require --debug flag in Browserify.

fix

Pass --debug or {debug: true} to Browserify.

affects: >=0.1

breakingConfig must be passed as --config for CLI or as options object programmatically; not via a separate config file reference.

fix

Use a rollup.config.js file or pass config object directly.

affects: >=0.1

Errors

Common errors & fixes

TypeError: Cannot read property 'code' of undefined

rollupify encountered a file it couldn't parse, possibly due to unsupported syntax like require() or non-ES6 module.

fix

Ensure all files are ES6 modules; convert require() calls to import/export.

Error: Config file not found: rollup.config.js

The --config path is incorrect or the file does not exist.

fix

Check that the config file path is correct relative to the current working directory.

Bundle contains require() calls - rollupify not applied

rollupify did not process the file; possible transform order issue or file is not an ES6 module.

fix

Ensure rollupify is listed before other transforms and that files use import/export.

Upgrade

Version history

0.5.1latest on npm

Audit

Dependencies

rollupoptionalpeer dependency; rollupify wraps Rollup's bundling

browserifyrequiredtransform is designed for Browserify pipeline; required at runtime

Agent activity

2 hits · last 30 days

node

Resources

githubhttps://github.com/nolanlawson/rollupify ↗

packagehttps://www.npmjs.com/package/rollupify ↗