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JS
Package

jsbn

The jsbn library is a fast, portable implementation of large-number math in pure JavaScript, enabling public-key crypto and other applications on desktop and mobile browsers.

v1.1.0, 13 Feb 2017MITCommonJSTypes: NoneNumbers and maths
$ npm install jsbn

Key numbers

As of 25 Sept 2026
Weekly downloads
22.4m
-31% over 12 months
Gzip bundle size
-
No Bundlephobia data
Dependencies
0
Direct, from package.json
Last release
9 years ago
v1.1.0
GitHub stars
173
43 forks
Open issues / PRs
17 / 1
Contributors
-
Commits, last 52 weeks
2

Downloads

Last week 2026-09-15 to 2026-09-21
010m20m30m40mSept 2025Mar 2026Sept 2026High 37.7m (21 Oct 2025)Low 14.5m (1 Sept 2026)
Weekly npm downloads, one point per week, weeks starting 23 Sept 2025 to 15 Sept 2026. The y axis starts at zero.

22,362,803 downloads last week, 94,329,424 in the last month. The 12-month change of -31% compares the average of the last 4 weeks with the first 4 weeks of the series.

Releases, last 12 months
04 in total
Latest version
1.1.0, 13 Feb 20179 years ago
First published
27 Apr 2013
Last push to GitHub
10 Sept 202615 days before the snapshot
Repository archived
No
Open issues
17
Open pull requests
1
Commits, last 52 weeks
2
Dependents on npm
780

Major versions

  1. v1 first release 1.1.0, 13 Feb 2017
  2. v0 first release 0.0.0, 27 Apr 2013

Recent releases

VersionPublished
1.1.013 Feb 2017
0.1.112 Feb 2017
0.1.029 Oct 2015
0.0.027 Apr 2013
Module format
CommonJSFrom package.json type, main and exports fields
TypeScript types
None
Node.js engine range
Not declared
Runtimes
-
Unpacked size (npm)
-
Dependencies (0)
None
npm install jsbn
  • jsDelivrhttps://cdn.jsdelivr.net/npm/jsbn@1.1.0/
  • unpkghttps://unpkg.com/jsbn@1.1.0/
  • esm.shhttps://esm.sh/jsbn@1.1.0
Sources: npm registry, npm downloads API, GitHub API. Data fetched 25 Sept 2026.

Indexability: Indexed.