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Package

happy-dom

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.

v20.14.5, 12 Sept 2026MITESM onlyTypes: BundledScraping and browser automationReact
$ npm install happy-dom
npmGitHubHomepage

Key numbers

As of 25 Sept 2026
Weekly downloads
12.4m
+420% over 12 months
Gzip bundle size
-
No Bundlephobia data
Dependencies
7
Direct, from package.json
Last release
13 days ago
v20.14.5
GitHub stars
4.7k
330 forks
Open issues / PRs
335 / 120
Contributors
-
Commits, last 52 weeks
141

Downloads

Last week 2026-09-15 to 2026-09-21
05m10m15m20mSept 2025Mar 2026Sept 2026High 16.1m (25 Aug 2026)Low 1.8m (23 Dec 2025)
Weekly npm downloads, one point per week, weeks starting 23 Sept 2025 to 15 Sept 2026. The y axis starts at zero.

12,435,300 downloads last week, 59,657,116 in the last month. The 12-month change of +420% compares the average of the last 4 weeks with the first 4 weeks of the series.

Maintenance

Releases, last 12 months
90772 in total
Latest version
20.14.5, 12 Sept 202613 days ago
First published
15 Sept 2019
Last push to GitHub
12 Sept 202613 days before the snapshot
Repository archived
No
Open issues
335
Open pull requests
120
Commits, last 52 weeks
141
Dependents on npm
333

Major versions

  1. v20 first release 20.0.0, 9 Oct 2025
  2. v19 first release 19.0.0, 28 Sept 2025
  3. v18 first release 18.0.0, 10 Jun 2025
  4. v17 first release 17.0.0, 5 Feb 2025
  5. v16 first release 16.0.0, 27 Dec 2024
  6. v15 first release 15.0.0, 21 Aug 2024
  7. v14 first release 14.0.0, 19 Mar 2024
  8. v13 first release 13.0.0, 10 Jan 2024
  9. v12 first release 12.0.0, 15 Sept 2023
  10. v11 first release 11.0.0, 6 Sept 2023
  11. v10 first release 10.0.0, 5 Jul 2023
  12. v9 first release 9.0.0, 1 Apr 2023
  13. v8 first release 8.0.0, 7 Dec 2022
  14. v7 first release 7.0.0, 5 Oct 2022
  15. v6 first release 6.0.0, 30 Jun 2022
  16. v5 first release 5.0.0, 31 May 2022
  17. v4 first release 4.0.0, 19 May 2022
  18. v3 first release 3.0.0, 26 Apr 2022
  19. v2 first release 2.0.0, 14 Dec 2020
  20. v1 first release 1.0.0, 4 Oct 2020
  21. v0 first release 0.0.1, 15 Sept 2019

Recent releases

VersionPublished
20.14.512 Sept 2026
20.14.412 Sept 2026
20.14.39 Sept 2026
20.14.29 Sept 2026
20.14.19 Sept 2026
20.14.03 Sept 2026
20.13.22 Sept 2026
20.13.12 Sept 2026
20.13.02 Sept 2026
20.12.22 Sept 2026
20.12.11 Sept 2026
20.12.029 Aug 2026
20.11.1528 Aug 2026
20.11.1428 Aug 2026

Compatibility

Module format
ESM onlyFrom package.json type, main and exports fields
TypeScript types
Bundled
Node.js engine range
>=20.0.0
Runtimes
-
Unpacked size (npm)
8.2 MB
Dependencies (7)
wsentities@types/ws@types/nodewhatwg-mimetypebuffer-image-size@types/whatwg-mimetype

Install

npm install happy-dom

CDN

jsDelivr: 291.7k requests in 30 days
  • jsDelivrhttps://cdn.jsdelivr.net/npm/happy-dom@20.14.5/
  • unpkghttps://unpkg.com/happy-dom@20.14.5/
  • esm.shhttps://esm.sh/happy-dom@20.14.5

Alternatives

PackageWeekly downloadsGzipLast releaseModuleComparison
jsdom75.1m-3 days agoCommonJShappy-dom vs jsdom
header-generator365.9k-1 month agoESM + CommonJS-
fingerprint-generator253.5k--ESM + CommonJS-
robots-parser3.3m-3 years agoCommonJS-
chromedriver737.2k-1 day agoCommonJS-
@memlab/e2e217.8k-26 days agoCommonJS-

Comparisons

Related

Sources: npm registry, npm downloads API, GitHub API, jsDelivr. Data fetched 25 Sept 2026.

Indexability: Indexed.