Skip to content
JS
Package

lowercase-keys

Lowercase the keys of an object

v4.0.1, 2 Feb 2026MITESM onlyTypes: Bundled
$ npm install lowercase-keys
npmGitHubHomepage

Key numbers

As of 25 Sept 2026
Weekly downloads
30.6m
+22% over 12 months
Gzip bundle size
-
No Bundlephobia data
Dependencies
0
Direct, from package.json
Last release
7 months ago
v4.0.1
GitHub stars
42
11 forks
Open issues / PRs
0 / 0
Contributors
-
Commits, last 52 weeks
6

Downloads

Last week 2026-09-15 to 2026-09-21
020m40m60mSept 2025Mar 2026Sept 2026High 40.7m (25 Aug 2026)Low 13.9m (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.

30,579,108 downloads last week, 133,044,040 in the last month. The 12-month change of +22% compares the average of the last 4 weeks with the first 4 weeks of the series.

Maintenance

Releases, last 12 months
26 in total
Latest version
4.0.1, 2 Feb 20267 months ago
First published
24 Jan 2015
Last push to GitHub
18 Sept 20266 days before the snapshot
Repository archived
No
Open issues
0
Open pull requests
0
Commits, last 52 weeks
6
Dependents on npm
549

Major versions

  1. v4 first release 4.0.0, 2 Feb 2026
  2. v3 first release 3.0.0, 18 Oct 2021
  3. v2 first release 2.0.0, 30 Apr 2019
  4. v1 first release 1.0.0, 24 Jan 2015

Recent releases

VersionPublished
4.0.12 Feb 2026
4.0.02 Feb 2026
3.0.018 Oct 2021
2.0.030 Apr 2019
1.0.123 Mar 2018
1.0.024 Jan 2015

Compatibility

Module format
ESM onlyFrom package.json type, main and exports fields
TypeScript types
Bundled
Node.js engine range
>=20
Runtimes
-
Unpacked size (npm)
4.9 kB
Dependencies (0)
None

Install

npm install lowercase-keys

CDN

  • jsDelivrhttps://cdn.jsdelivr.net/npm/lowercase-keys@4.0.1/
  • unpkghttps://unpkg.com/lowercase-keys@4.0.1/
  • esm.shhttps://esm.sh/lowercase-keys@4.0.1
Sources: npm registry, npm downloads API, GitHub API. Data fetched 25 Sept 2026.

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