Dev Tools

Monaco Editor Playground — VS Code's Code Editor in Your Browser

Try Monaco Editor — the code editor that powers VS Code — with syntax highlighting, IntelliSense, and diff view for dozens of languages. Runs entirely in your browser — nothing you write is ever uploaded.

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About Monaco Editor Playground — VS Code's Code Editor

Monaco Editor is the open-source code editor that powers Visual Studio Code, built by Microsoft. This is its official website and Playground, self-hosted directly from the microsoft/monaco-editor project's own source: try the editor live, run and edit categorized code samples (creating an editor, adding languages, customizing behavior), experiment with the Monarch tokenizer for custom language highlighting, and browse the full API documentation. It runs entirely client-side — nothing you type is uploaded to any server by this site.

How to use

  1. Type or paste code into any editor pane — you get syntax highlighting, IntelliSense-style completions, bracket matching, and multi-cursor editing out of the box.
  2. Open the Playground to pick a sample; edit the code on the left and see it run live against a real Monaco instance on the right.
  3. Use the Monarch page to define a custom language tokenizer, or the API docs to look up editor options and methods.

Frequently asked questions

Is my data uploaded anywhere?
No. The editor, Playground, and all samples run entirely in your browser — nothing you type or edit is sent to a server by this site.
Is this the same editor as VS Code?
Yes — Monaco is the editor component extracted from VS Code. It's the same code-editing core, running standalone in the browser.
Which languages are supported?
Dozens, including TypeScript/JavaScript, JSON, CSS, HTML, Python, Go, Rust, C++, SQL and many more, with rich language features (completions, diagnostics, formatting) for the built-in web languages.