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is-binary-buffer

Returns true if a buffer is binary. Takes a buffer and does not read from the file system.

v2.0.0, 7 Mar 2018MITCommonJSTypes: NoneFiles and file systemsNode.js utilities
$ npm install is-binary-buffer

Key numbers

As of 25 Sept 2026
Weekly downloads
20.2k
-19% over 12 months
Gzip bundle size
-
No Bundlephobia data
Dependencies
2
Direct, from package.json
Last release
8 years ago
v2.0.0
GitHub stars
5
0 forks
Open issues / PRs
0 / 0
Contributors
-
Commits, last 52 weeks
0

Downloads

Last week 2026-09-15 to 2026-09-21
020k40k60kSept 2025Mar 2026Sept 2026High 54.6k (3 Feb 2026)Low 16.4k (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.

20,225 downloads last week, 102,744 in the last month. The 12-month change of -19% compares the average of the last 4 weeks with the first 4 weeks of the series.

Releases, last 12 months
-
Latest version
2.0.0, 7 Mar 20188 years ago
First published
-
Last push to GitHub
7 Mar 20183,123 days before the snapshot
Repository archived
No
Open issues
0
Open pull requests
0
Commits, last 52 weeks
0
Dependents on npm
9

Major versions

-

Recent releases

-

Module format
CommonJSFrom package.json type, main and exports fields
TypeScript types
None
Node.js engine range
>=4
Runtimes
-
Unpacked size (npm)
5.5 kB
Dependencies (2)
kind-offile-type
npm install is-binary-buffer
  • jsDelivrhttps://cdn.jsdelivr.net/npm/is-binary-buffer@2.0.0/
  • unpkghttps://unpkg.com/is-binary-buffer@2.0.0/
  • esm.shhttps://esm.sh/is-binary-buffer@2.0.0
PackageWeekly downloadsGzipLast releaseModuleComparison
multiparty733.1k-14 days ago--
path-complete-extname322.1k-8 years agoCommonJS-
ignore237.8m-2 days ago--
watchr20.5k-5 years agoCommonJS-
Sources: npm registry, npm downloads API, GitHub API. Data fetched 25 Sept 2026.

Indexability: Indexed.