Registry / devops / babel-preset-minify

babel-preset-minify

library0.5.2jsnpmunverified

Babel preset that bundles all babel-minify plugins for minification. Current stable version is 0.5.2 (last release Sep 2018). This project is part of the babel/minify monorepo, which is now in maintenance mode with no active development. The preset provides a convenient way to apply minification transforms like dead code elimination, constant folding, mangle names, and more via a single preset. Unlike terser or uglify, it operates as a Babel transform, allowing integration with Babel workflows and AST-level optimizations. It supports options to enable/disable individual plugins and has known missing dependency issues.

devops

npm install babel-preset-minify

github ↗package ↗

INSTALL

IMPORT

SIG · BABEL-PRESET-MINIF

babel-preset-minify

devopsjavascriptv0.5.2

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 18–226 runs

build_error

glibc

node 18–226 runs

build_error

Code

Verified usage

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

default

✓ module.exports = require('babel-preset-minify')

✗ import preset from 'babel-preset-minify'

CommonJS only; ESM import will fail as package does not export ES modules. Use require() in Node.js.

preset declaration

✓ "presets": ["minify"] in .babelrc or babel.config.js

✗ "presets": ["babel-preset-minify"]

In Babel config, use the shorthand 'minify' without the 'babel-preset-' prefix.

Node API usage

✓ const babel = require('@babel/core'); babel.transform(code, { presets: ['minify'] })

✗ const minify = require('babel-preset-minify'); minify(code)

You must use the preset through Babel's transform API, not call it directly.

Demonstrates installation, .babelrc configuration with options, and Node API usage for minifying JavaScript.

// Install: npm install babel-preset-minify --save-dev // Example .babelrc { "presets": [ ["minify", { "mangle": { "exclude": ["MyCustomError"] }, "removeConsole": true, "keepFnName": false }] ] } // Node API usage const babel = require('@babel/core'); const fs = require('fs'); const code = fs.readFileSync('./input.js', 'utf8'); const output = babel.transformSync(code, { presets: ['minify'] }); fs.writeFileSync('./output.min.js', output.code);

Debug

Known issues

deprecatedbabel-minify project is no longer actively maintained. Consider using terser or a more modern minifier.

fix

Migrate to terser (via @babel/plugin-minify? but prefer standalone) or use babel-plugin-uglify or similar.

affects: >=0.5.0

breakingMissing dependencies in version 0.5.1 causing runtime errors

fix

Upgrade to 0.5.2 or pin to 0.5.0. Also, ensure all peer dependencies are installed (babel-core 6.x).

affects: 0.5.1

breakingRenamed from Babili to babel-minify in version 0.2.0. Old import paths and configuration break.

fix

Update presets from 'babili' to 'minify' and update package names accordingly.

affects: <0.2.0

deprecatedThe 'blacklist' option for mangle plugin renamed to 'exclude' in version 0.3.0.

fix

Use 'exclude' instead of 'blacklist' in mangle options.

affects: >=0.3.0

gotchaDoes not support ES modules. Only CommonJS via require(). Using import will fail.

fix

Use require() for Node.js. For bundlers, ensure Babel is configured properly.

affects: >=0.0.0

Errors

Common errors & fixes

Error: Cannot find module 'babel-preset-minify'

Forgot to install the package as devDependency.

fix

Run: npm install babel-preset-minify --save-dev

TypeError: Cannot read property 'minify' of undefined

Misconfigured Babel presets (e.g., using 'babel-preset-minify' instead of 'minify' or array syntax wrong).

fix

Use "presets": ["minify"] or "presets": [["minify", { options }]]

ERROR: The 'blacklist' option has been removed. Use 'exclude'.

Using old 'blacklist' option with babel-preset-minify >= 0.3.0.

fix

Replace 'blacklist' with 'exclude' in mangle options.

Module not found: Can't resolve 'babel-preset-minify' in ...

Webpack or other bundler trying to import the preset as a module directly.

fix

Do not import babel-preset-minify directly in code; use it only in Babel config.

Upgrade

Version history

0.5.2latest on npm

Audit

Dependencies

No dependency data recorded yet.

Agent activity

4 hits · last 30 days

node

Resources

githubhttps://github.com/babel/minify ↗

packagehttps://www.npmjs.com/package/babel-preset-minify ↗