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regexpu-core

regexpu’s core functionality (i.e. `rewritePattern(pattern, flag)`), capable of translating ES6 Unicode regular expressions to ES5.

v6.4.0, 22 Sept 2025MITCommonJSTypes: BundledBuild tools
$ npm install regexpu-core
npmGitHubHomepage

Key numbers

As of 25 Sept 2026
Weekly downloads
39.3m
+39% over 12 months
Gzip bundle size
-
No Bundlephobia data
Dependencies
6
Direct, from package.json
Last release
1 year ago
v6.4.0
GitHub stars
82
12 forks
Open issues / PRs
4 / 1
Contributors
7
Commits, last 52 weeks
0

Downloads

Last week 2026-09-15 to 2026-09-21
020m40m60mSept 2025Mar 2026Sept 2026High 49.2m (25 Aug 2026)Low 16.1m (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.

39,319,370 downloads last week, 179,238,778 in the last month. The 12-month change of +39% compares the average of the last 4 weeks with the first 4 weeks of the series.

Maintenance

Releases, last 12 months
053 in total
Latest version
6.4.0, 22 Sept 20251 year ago
First published
11 Jan 2016
Last push to GitHub
22 Sept 2025367 days before the snapshot
Repository archived
No
Open issues
4
Open pull requests
1
Commits, last 52 weeks
0
Dependents on npm
1,185

Major versions

  1. v6 first release 6.0.0, 25 Sept 2023
  2. v5 first release 5.0.0, 8 Jan 2022
  3. v4 first release 4.0.0, 2 Nov 2016
  4. v3 first release 3.0.1, 2 Jun 2016
  5. v2 first release 2.0.0, 8 Feb 2016
  6. v1 first release 1.0.0, 11 Jan 2016

Recent releases

VersionPublished
6.4.022 Sept 2025
6.3.110 Sept 2025
6.3.010 Sept 2025
6.2.021 Nov 2024
6.1.120 Sept 2024
6.1.018 Sept 2024
6.0.025 Sept 2023
5.3.210 Mar 2023
5.3.116 Feb 2023
5.3.08 Feb 2023
5.2.214 Nov 2022
5.2.114 Sept 2022
5.1.027 Jun 2022
5.0.110 Jan 2022

Compatibility

Module format
CommonJSFrom package.json type, main and exports fields
TypeScript types
Bundled
Node.js engine range
>=4
Runtimes
-
Unpacked size (npm)
135 kB
Dependencies (6)
regjsgenregenerateregjsparserregenerate-unicode-propertiesunicode-match-property-ecmascriptunicode-match-property-value-ecmascript

Install

npm install regexpu-core

CDN

  • jsDelivrhttps://cdn.jsdelivr.net/npm/regexpu-core@6.4.0/
  • unpkghttps://unpkg.com/regexpu-core@6.4.0/
  • esm.shhttps://esm.sh/regexpu-core@6.4.0
Sources: npm registry, npm downloads API, GitHub API. Data fetched 25 Sept 2026.

Indexability: Indexed.