suren-atoyan/monaco-react

★ 4,701TypeScriptAudience · developerComplexity · 2/5LicenseSetup · easy

Mindmap

mindmap
  root((monaco-react))
    What it does
      Embed VS Code editor
      React component wrapper
      No build config needed
    Components
      Editor
      DiffEditor
      useMonaco hook
    Features
      Syntax highlighting
      Code completion
      Multi-model editing
    Compatibility
      Vite
      Next.js
      Create React App

mindmap root((monaco-react)) What it does Embed VS Code editor React component wrapper No build config needed Components Editor DiffEditor useMonaco hook Features Syntax highlighting Code completion Multi-model editing Compatibility Vite Next.js Create React App

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Things people build with this

USE CASE 1

Add a code editor to your web app, like a browser-based IDE, code playground, or config editor, without configuring webpack or any build plugins.

USE CASE 2

Show a side-by-side diff view of two code versions in your web app using the included DiffEditor component.

USE CASE 3

Build a multi-file code editor in the browser where users can switch between open documents, each with its own language and state.

USE CASE 4

Define a custom programming language with syntax highlighting in your app using the useMonaco hook to access the Monaco API directly.

Tech stack

TypeScriptReactMonaco Editor

Getting it running

Difficulty · easy Time to first run · 5min

Next.js users need a dynamic import to avoid server-side rendering errors, the README covers this.

Use freely in any project including commercial ones under the MIT license, just keep the copyright notice.

In plain English

This library puts the Monaco code editor into React applications. Monaco is the editor that powers VS Code, the widely used coding tool from Microsoft. It supports syntax highlighting, code completion, and error checking for dozens of programming languages. This package wraps it so React developers can drop it into any project with a single import, without touching build configuration files. The problem it solves is that Monaco was originally built to work with webpack, a specific build tool, and adding it to a project that uses a different tool (Vite, Parcel, Snowpack, or Next.js) normally requires extra setup steps. This library handles all of that internally. You install the package, import the Editor component, and render it with a few props like height and language. No ejecting from create-react-app, no extra plugins. Beyond the basic code editor, the package also provides a DiffEditor component that shows two versions of a file side by side with differences highlighted, similar to what you see when reviewing code changes. A React hook called useMonaco gives access to the underlying Monaco instance directly, which lets developers do things like define custom languages or modify editor behavior programmatically. Multiple documents can be open simultaneously through a feature called multi-model editing. The library is written in TypeScript and includes type definitions. It works with React 19 and is published on npm under the MIT license. A live playground is available on the project website where you can try different configurations before writing any code. The full README is longer than what was shown.

Copy-paste prompts

Prompt 1

I'm building a React app and want to add a code editor where users can write and edit JavaScript. Show me how to install monaco-react and render a basic Editor component with syntax highlighting and line numbers.

Prompt 2

I need to show a side-by-side diff between two versions of a config file in my React app. Show me how to use the DiffEditor component from monaco-react with two strings as input.

Prompt 3

Using the useMonaco hook from monaco-react, show me how to register a custom language called myconfig with basic keyword highlighting.

Prompt 4

I'm using monaco-react in a Next.js app and getting import errors. Walk me through the correct dynamic import setup to avoid SSR issues.

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