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fast-json-patch

Fast implementation of JSON-Patch (RFC-6902) with duplex (observe changes) capabilities

v3.1.1, 24 Mar 2022MITESM + CommonJSTypes: Bundled
$ npm install fast-json-patch

Key numbers

As of 25 Sept 2026
Weekly downloads
5.9m
+74% over 12 months
Gzip bundle size
-
No Bundlephobia data
Dependencies
0
Direct, from package.json
Last release
4 years ago
v3.1.1
GitHub stars
2k
223 forks
Open issues / PRs
61 / 23
Contributors
-
Commits, last 52 weeks
0

Downloads

Last week 2026-09-15 to 2026-09-21
02.5m5m7.5m10mSept 2025Mar 2026Sept 2026High 8.4m (25 Aug 2026)Low 2.2m (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.

5,866,046 downloads last week, 29,331,437 in the last month. The 12-month change of +74% compares the average of the last 4 weeks with the first 4 weeks of the series.

Releases, last 12 months
044 in total
Latest version
3.1.1, 24 Mar 20224 years ago
First published
29 Jul 2013
Last push to GitHub
23 Oct 2025336 days before the snapshot
Repository archived
No
Open issues
61
Open pull requests
23
Commits, last 52 weeks
0
Dependents on npm
1,100

Major versions

  1. v3 first release 3.1.0, 13 Aug 2021
  2. v2 first release 2.0.0, 16 Jun 2017
  3. v1 first release 1.0.0, 21 Jun 2016
  4. v0 first release 0.0.2, 29 Jul 2013

Recent releases

VersionPublished
3.1.124 Mar 2022
3.1.013 Aug 2021
2.2.19 Aug 2019
2.2.01 Aug 2019
2.1.01 Apr 2019
2.0.730 Aug 2018
2.0.620 Oct 2017
2.0.529 Aug 2017
2.0.421 Jul 2017
2.0.328 Jun 2017
2.0.216 Jun 2017
2.0.116 Jun 2017
2.0.016 Jun 2017
1.2.22 Jun 2017
Module format
ESM + CommonJSFrom package.json type, main and exports fields
TypeScript types
Bundled
Node.js engine range
Not declared
Runtimes
-
Unpacked size (npm)
155 kB
Dependencies (0)
None
npm install fast-json-patch
  • jsDelivrhttps://cdn.jsdelivr.net/npm/fast-json-patch@3.1.1/
  • unpkghttps://unpkg.com/fast-json-patch@3.1.1/
  • esm.shhttps://esm.sh/fast-json-patch@3.1.1
Sources: npm registry, npm downloads API, GitHub API. Data fetched 25 Sept 2026.

Indexability: Not indexed (discovery only): no category.