Skip to content
JS
Package

penpal

Penpal simplifies communication with iframes, workers, and windows by using promise-based methods on top of postMessage.

v8.0.1, 14 Aug 2026MITESM + CommonJSTypes: BundledPromises and async control flow
$ npm install penpal
npmGitHubHomepage

Key numbers

As of 25 Sept 2026
Weekly downloads
329.6k
+168% over 12 months
Gzip bundle size
-
No Bundlephobia data
Dependencies
0
Direct, from package.json
Last release
1 month ago
v8.0.1
GitHub stars
564
64 forks
Open issues / PRs
0 / 0
Contributors
-
Commits, last 52 weeks
50

Downloads

Last week 2026-09-15 to 2026-09-21
0200k400k600kSept 2025Mar 2026Sept 2026High 456.7k (25 Aug 2026)Low 55.4k (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.

329,611 downloads last week, 1,566,489 in the last month. The 12-month change of +168% compares the average of the last 4 weeks with the first 4 weeks of the series.

Maintenance

Releases, last 12 months
463 in total
Latest version
8.0.1, 14 Aug 20261 month ago
First published
30 Oct 2016
Last push to GitHub
14 Aug 202641 days before the snapshot
Repository archived
No
Open issues
0
Open pull requests
0
Commits, last 52 weeks
50
Dependents on npm
184

Major versions

  1. v8 first release 8.0.0, 12 Aug 2026
  2. v7 first release 7.0.0, 12 Mar 2025
  3. v6 first release 6.0.0, 9 Jul 2021
  4. v5 first release 5.0.0, 9 May 2020
  5. v4 first release 4.0.0, 15 Apr 2019
  6. v3 first release 3.0.0, 22 Nov 2017
  7. v2 first release 2.0.0, 2 Dec 2016
  8. v1 first release 1.0.0, 30 Oct 2016

Recent releases

VersionPublished
8.0.114 Aug 2026
8.0.012 Aug 2026
7.0.613 Feb 2026
7.0.513 Feb 2026
7.0.41 Apr 2025
7.0.329 Mar 2025
7.0.226 Mar 2025
7.0.125 Mar 2025
7.0.012 Mar 2025
6.2.26 Mar 2022
6.2.114 Oct 2021
6.2.014 Oct 2021
6.1.029 Jul 2021
6.0.19 Jul 2021

Compatibility

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

Install

npm install penpal

CDN

jsDelivr: 334k requests in 30 days
  • jsDelivrhttps://cdn.jsdelivr.net/npm/penpal@8.0.1/
  • unpkghttps://unpkg.com/penpal@8.0.1/
  • esm.shhttps://esm.sh/penpal@8.0.1

Alternatives

PackageWeekly downloadsGzipLast releaseModuleComparison
postmate19k-6 years agoESM + CommonJS-
Sources: npm registry, npm downloads API, GitHub API, jsDelivr. Data fetched 25 Sept 2026.

Indexability: Indexed.