Is happy-dom safe to use?

happy-dom has no known vulnerabilities on the latest version (20.9.0). DepScope rates its health at 84/100 (low risk).

What is the latest version of happy-dom?

The latest version of happy-dom is 20.9.0, released 2026-04-13.

Does happy-dom have known vulnerabilities?

No known vulnerabilities on the latest version of happy-dom.

Is happy-dom deprecated?

No, happy-dom is actively maintained. Latest release: 20.9.0 (2026-04-13).

What are alternatives to happy-dom?

Popular alternatives to happy-dom in npm include: semver, minimatch, ansi-styles, brace-expansion, strip-ansi.

What license does happy-dom use?

happy-dom is licensed under MIT.

happy-dom

npmv20.9.0

Happy DOM is a JavaScript implementation of a web browser without its graphical user interface. It includes many web standards from WHATWG DOM and HTML.

License MITpermissive737 versions1 maintainers6 deps7,429,231 weekly dl

capricorn86/happy-dom

/ 100

Health

safe to use

[email protected] is safe to use (health: 84/100)

Health breakdown0 – 100

25/25

maintenance

17/20

popularity

25/25

security

15/15

maturity

2/15

community

Vulnerabilities

none known

Bundle & TypeScript

📦

Bundle Size

821.4 KBminified

196.6 KB gzipped

6 direct dependencies

side effects

🌟

TypeScript

10/10typed

bundled

Quality signals

Publish security

npm signed

Health History

Dependency Tree

License Audit

Dependencies (6)

@types/node @types/whatwg-mimetype @types/ws entities whatwg-mimetype ws

API access

Get this data programmatically — free, no authentication.

curl https://depscope.dev/api/check/npm/happy-dom