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tsafe

A collection of utilities to step up your TypeScript game

v1.8.12, 1 Oct 2025MITESM + CommonJSTypes: BundledTypeScript toolingTesting
$ npm install tsafe

Key numbers

As of 25 Sept 2026
Weekly downloads
811.9k
+367% over 12 months
Gzip bundle size
-
No Bundlephobia data
Dependencies
0
Direct, from package.json
Last release
11 months ago
v1.8.12
GitHub stars
480
7 forks
Open issues / PRs
6 / 2
Contributors
-
Commits, last 52 weeks
4

Downloads

Last week 2026-09-15 to 2026-09-21
0500k1m1.5mSept 2025Mar 2026Sept 2026High 1.2m (18 Aug 2026)Low 119.7k (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.

811,876 downloads last week. The 12-month change of +367% compares the average of the last 4 weeks with the first 4 weeks of the series.

Releases, last 12 months
279 in total
Latest version
1.8.12, 1 Oct 202511 months ago
First published
29 Mar 2021
Last push to GitHub
1 Oct 2025358 days before the snapshot
Repository archived
No
Open issues
6
Open pull requests
2
Commits, last 52 weeks
4
Dependents on npm
-

Major versions

  1. v1 first release 1.0.0, 13 Aug 2022
  2. v0 first release 0.0.1, 29 Mar 2021

Recent releases

VersionPublished
1.8.121 Oct 2025
1.8.111 Oct 2025
1.8.109 Sept 2025
1.8.97 Sept 2025
1.8.87 Sept 2025
1.8.76 Sept 2025
1.8.66 Sept 2025
1.8.518 Nov 2024
1.8.410 Nov 2024
1.8.310 Nov 2024
1.8.210 Nov 2024
1.8.19 Nov 2024
1.8.09 Nov 2024
1.7.52 Oct 2024
Module format
ESM + CommonJSFrom package.json type, main and exports fields
TypeScript types
Bundled
Node.js engine range
Not declared
Runtimes
-
Unpacked size (npm)
135 kB
Dependencies (0)
None
npm install tsafe
  • jsDelivrhttps://cdn.jsdelivr.net/npm/tsafe@1.8.12/
  • unpkghttps://unpkg.com/tsafe@1.8.12/
  • esm.shhttps://esm.sh/tsafe@1.8.12
PackageWeekly downloadsGzipLast releaseModuleComparison
type-plus46.9k-2 years agoESM + CommonJS-
type-fest285.1m-7 days agoESM only-
tsutils16.1m-5 years ago--
utility-types7.8m-2 years agoCommonJS-
ts-toolbelt7.1m-5 years agoCommonJS-
just-diff4.6m-3 years agoESM + CommonJS-
just-diff-apply4.4m-3 years agoESM + CommonJS-
just-curry-it729.3k-3 years agoESM + CommonJS-
Sources: npm registry, npm downloads API, GitHub API. Data fetched 25 Sept 2026.

Indexability: Indexed.