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Package

json3

A JSON polyfill for older JavaScript platforms.

v3.3.3, 27 May 2019MITCommonJSTypes: NoneParsers and serialisers
$ npm install json3
npmGitHubHomepage

Key numbers

As of 25 Sept 2026
Weekly downloads
3.4m
-3% over 12 months
Gzip bundle size
-
No Bundlephobia data
Dependencies
0
Direct, from package.json
Last release
7 years ago
v3.3.3
GitHub stars
1k
148 forks
Open issues / PRs
16 / 1
Contributors
-
Commits, last 52 weeks
0

Downloads

Last week 2026-09-15 to 2026-09-21
02m4m6mSept 2025Mar 2026Sept 2026High 4m (25 Nov 2025)Low 1.1m (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.

3,387,793 downloads last week, 9,648,091 in the last month. The 12-month change of -3% compares the average of the last 4 weeks with the first 4 weeks of the series.

Maintenance

Releases, last 12 months
011 in total
Latest version
3.3.3, 27 May 20197 years ago
First published
23 Mar 2012
Last push to GitHub
27 May 20192,677 days before the snapshot
Repository archived
Yes
Open issues
16
Open pull requests
1
Commits, last 52 weeks
0
Dependents on npm
241

Major versions

  1. v3 first release 3.1.0, 23 Mar 2012

Recent releases

VersionPublished
3.3.327 May 2019
3.3.222 Jun 2014
3.3.19 Apr 2014
3.3.021 Jan 2014
3.2.625 Nov 2013
3.2.525 Jul 2013
3.2.417 Oct 2012
3.2.25 May 2012
3.2.127 Apr 2012
3.2.015 Apr 2012
3.1.023 Mar 2012

Compatibility

Module format
CommonJSFrom package.json type, main and exports fields
TypeScript types
None
Node.js engine range
Not declared
Runtimes
-
Unpacked size (npm)
75 kB
Dependencies (0)
None

Install

npm install json3

CDN

  • jsDelivrhttps://cdn.jsdelivr.net/npm/json3@3.3.3/
  • unpkghttps://unpkg.com/json3@3.3.3/
  • esm.shhttps://esm.sh/json3@3.3.3
Sources: npm registry, npm downloads API, GitHub API. Data fetched 25 Sept 2026.

Indexability: Indexed.