head to head · open source
monaco-editor vs happy-dom
monaco-editor has 46,766 GitHub stars, 4,131 forks, 859 open issues and last shipped 5 days ago. happy-dom has 4,654 stars, 323 forks, 444 open issues and last shipped 6 days ago. monaco-editor leads on adoption by 905% (46,766 vs 4,654 stars). monaco-editor is written in JavaScript under MIT; happy-dom is written in TypeScript under MIT. monaco-editor has attracted 9% as many forks as stars, happy-dom 7%. monaco-editor was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (browser), so they are genuine substitutes rather than adjacent tools.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| monaco-editor | happy-dom | |
|---|---|---|
| GitHub stars | ★ 47K | ★ 4.7K |
| License | MIT | MIT |
| Written in | JavaScript | TypeScript |
| Last push | 2026-09-13 | 2026-09-12 |
| Forks | ⑂ 4.1K | ⑂ 323 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick monaco-editor if
- You weight community size — 47K stars and counting
- You want the MIT license terms
- Your stack matches JavaScript
- You value the larger contributor base for long-term maintenance
pick happy-dom if
- You want the happy-dom feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and happy-dom fits your workflow better
About monaco-editor
Monaco Editor is the fully featured code editor from VS Code, packaged as an npm library so that developers can embed the same editing experience inside their own browser based applications.
read the full monaco-editor overview →
About happy-dom
happy dom is a JavaScript implementation of a web browser without its graphical user interface, written in TypeScript, MIT licensed, and built for developers who need a browser like DOM inside Node.js or Bun instead of inside an actual browser window.
read the full happy-dom overview →
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Frequently asked questions
Is monaco-editor or happy-dom more popular?
monaco-editor has 46,766 GitHub stars and happy-dom has 4,654. monaco-editor has the larger community by that measure.
Are monaco-editor and happy-dom free?
Both are open source. monaco-editor is licensed under MIT and happy-dom under MIT. Neither carries a licence fee.
What is the difference between monaco-editor and happy-dom?
monaco-editor is written in JavaScript and happy-dom in TypeScript. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, monaco-editor or happy-dom?
Choose monaco-editor if you want the larger community (46,766 stars) or its MIT licence terms. Choose happy-dom if its feature set, stack or MIT licence fits better. Both are self-hostable.