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devops / monaco-editor-webpack-plugin
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
muslnode 18–226 runs
build_error
glibcnode 18–226 runs
build_error
Code
Verified usage
Verified import paths — ran on the pinned version, not inferred.
MonacoWebpackPlugin
✓ import MonacoWebpackPlugin from 'monaco-editor-webpack-plugin'
✗ const MonacoWebpackPlugin = require('monaco-editor-webpack-plugin')
ESM default export; CommonJS require also works but types are ESM-first
monaco
✓ import * as monaco from 'monaco-editor'
✗ import monaco from 'monaco-editor'
monaco-editor is ESM-only; default import is not available, use namespace import
monaco (lightweight)
✓ import * as monaco from 'monaco-editor/esm/vs/editor/editor.api'
Only imports the core editor API without languages/features; reduces bundle size
Configures webpack with MonacoWebpackPlugin, loads Monaco Editor, and creates an editor instance.
// webpack.config.js
const MonacoWebpackPlugin = require('monaco-editor-webpack-plugin');
const path = require('path');
module.exports = {
entry: './index.js',
output: {
path: path.resolve(__dirname, 'dist'),
filename: 'app.js'
},
module: {
rules: [
{ test: /\.css$/, use: ['style-loader', 'css-loader'] },
{ test: /\.ttf$/, type: 'asset/resource' }
]
},
plugins: [new MonacoWebpackPlugin()]
};
// index.js
import * as monaco from 'monaco-editor';
monaco.editor.create(document.getElementById('container'), {
value: 'console.log("Hello, world")',
language: 'javascript'
});
Errors
Common errors & fixes
Module parse failed: Unexpected token (1:0)
You may need an appropriate loader to handle this file type.
Missing CSS loader for Monaco Editor styles.
fixAdd rule: { test: /\.css$/, use: ['style-loader', 'css-loader'] } Cannot find module 'monaco-editor-webpack-plugin'
Package not installed or misconfigured in webpack config.
fixRun npm install monaco-editor-webpack-plugin --save-dev and ensure correct import.
ERROR in ./node_modules/monaco-editor/esm/vs/editor/editor.api.js
Module not found: Error: Can't resolve 'fs' in '...'
Webpack bundle target is browser but plugin expects node environment for workers.
fixSet target: 'web' in webpack config and ensure workers are handled.
Audit
Dependencies
webpackrequiredPeer dependency; plugin integrates with webpack compilation
monaco-editorrequiredPeer dependency; the editor runtime to bundle