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is-kit

Zero-dependency TypeScript runtime validation toolkit for composable type guards and natural type narrowing.

v1.14.3, 19 Sept 2026MITESM + CommonJSTypes: BundledSchema validationTypeScript tooling
$ npm install is-kit

Key numbers

As of 25 Sept 2026
Weekly downloads
1.4k
+605% over 12 months
Gzip bundle size
-
No Bundlephobia data
Dependencies
0
Direct, from package.json
Last release
6 days ago
v1.14.3
GitHub stars
81
2 forks
Open issues / PRs
2 / 0
Contributors
-
Commits, last 52 weeks
784

Downloads

Last week 2026-09-15 to 2026-09-21
01k2k3kSept 2025Mar 2026Sept 2026High 2.1k (14 Jul 2026)Low 0 (23 Sept 2025)
Weekly npm downloads, one point per week, weeks starting 23 Sept 2025 to 15 Sept 2026. The y axis starts at zero.

1,376 downloads last week, 2,924 in the last month. The 12-month change of +605% compares the average of the last 4 weeks with the first 4 weeks of the series.

Releases, last 12 months
-
Latest version
1.14.3, 19 Sept 20266 days ago
First published
-
Last push to GitHub
20 Sept 20264 days before the snapshot
Repository archived
No
Open issues
2
Open pull requests
0
Commits, last 52 weeks
784
Dependents on npm
1

Major versions

-

Recent releases

-

Module format
ESM + CommonJSFrom package.json type, main and exports fields
TypeScript types
Bundled
Node.js engine range
Not declared
Runtimes
-
Unpacked size (npm)
171 kB
Dependencies (0)
None
npm install is-kit
  • jsDelivrhttps://cdn.jsdelivr.net/npm/is-kit@1.14.3/
  • unpkghttps://unpkg.com/is-kit@1.14.3/
  • esm.shhttps://esm.sh/is-kit@1.14.3
PackageWeekly downloadsGzipLast releaseModuleComparison
valibot13.4m-15 days agoESM + CommonJS-
@typeschema/core189.7k-2 years agoESM + CommonJS-
@typeschema/class-validator188.3k-1 year agoESM + CommonJS-
papr16.8k-1 month agoESM only-
computed-types10.9k-4 years agoESM + CommonJS-
superstruct4.7m-2 years agoESM + CommonJS-
zod211.9m-11 days agoESM + CommonJS-
typanion3.5m-3 years agoCommonJS-
Sources: npm registry, npm downloads API, GitHub API. Data fetched 25 Sept 2026.

Indexability: Not indexed (discovery only): downloads_week 1376 < 10000.