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chevrotain

Chevrotain is a high performance fault tolerant javascript parsing DSL for building recursive decent parsers

v13.2.0, 1 Aug 2026Apache-2.0ESM + CommonJSTypes: BundledParsers and serialisers
$ npm install chevrotain

Key numbers

As of 25 Sept 2026
Weekly downloads
7.1m
+198% over 12 months
Gzip bundle size
-
No Bundlephobia data
Dependencies
5
Direct, from package.json
Last release
1 month ago
v13.2.0
GitHub stars
2.8k
222 forks
Open issues / PRs
16 / 13
Contributors
-
Commits, last 52 weeks
99

Downloads

Last week 2026-09-15 to 2026-09-21
05m10m15mSept 2025Mar 2026Sept 2026High 10.8m (5 May 2026)Low 2.7m (30 Sept 2025)
Weekly npm downloads, one point per week, weeks starting 23 Sept 2025 to 15 Sept 2026. The y axis starts at zero.

7,070,871 downloads last week, 34,434,186 in the last month. The 12-month change of +198% compares the average of the last 4 weeks with the first 4 weeks of the series.

Releases, last 12 months
8175 in total
Latest version
13.2.0, 1 Aug 20261 month ago
First published
30 May 2015
Last push to GitHub
25 Sept 2026same day as the snapshot
Repository archived
No
Open issues
16
Open pull requests
13
Commits, last 52 weeks
99
Dependents on npm
489

Major versions

  1. v13 first release 13.0.0, 25 Jul 2026
  2. v12 first release 12.0.0, 13 Mar 2026
  3. v11 first release 11.0.0, 11 Jul 2023
  4. v10 first release 10.0.0, 17 Jan 2022
  5. v9 first release 9.0.0, 20 Mar 2021
  6. v8 first release 8.0.0, 28 Feb 2021
  7. v7 first release 7.0.0, 18 Apr 2020
  8. v6 first release 6.0.0, 20 Aug 2019
  9. v5 first release 5.0.0, 31 Jul 2019
  10. v4 first release 4.0.0, 25 Sept 2018
  11. v3 first release 3.0.0, 23 Feb 2018
  12. v2 first release 2.0.0, 10 Feb 2018
  13. v1 first release 1.0.0, 8 Dec 2017
  14. v0 first release 0.1.0, 30 May 2015

Recent releases

VersionPublished
13.2.01 Aug 2026
13.1.031 Jul 2026
13.0.025 Jul 2026
12.0.013 Mar 2026
11.2.03 Mar 2026
11.1.227 Feb 2026
11.1.124 Jan 2026
11.1.03 Jan 2026
11.0.314 Aug 2023
11.0.22 Aug 2023
11.0.117 Jul 2023
11.0.011 Jul 2023
10.5.011 Mar 2023
10.4.221 Nov 2022
Module format
ESM + CommonJSFrom package.json type, main and exports fields
TypeScript types
Bundled
Node.js engine range
>=22.0.0
Runtimes
-
Unpacked size (npm)
1.2 MB
Dependencies (5)
@chevrotain/gast@chevrotain/types@chevrotain/utils@chevrotain/cst-dts-gen@chevrotain/regexp-to-ast
npm install chevrotain

CDN

jsDelivr: 223.3k requests in 30 days
  • jsDelivrhttps://cdn.jsdelivr.net/npm/chevrotain@13.2.0/
  • unpkghttps://unpkg.com/chevrotain@13.2.0/
  • esm.shhttps://esm.sh/chevrotain@13.2.0
PackageWeekly downloadsGzipLast releaseModuleComparison
php-parser404.9k-3 months agoCommonJS-
nearley5.9m-5 years agoCommonJS-
ohm-js630.5k-7 months agoESM + CommonJS-
antlr41.2m-2 years agoESM + CommonJS-
yuku-parser2.9m-1 day agoESM only-
css-tree88.1m-6 months agoESM + CommonJS-
Sources: npm registry, npm downloads API, GitHub API, jsDelivr. Data fetched 25 Sept 2026.

Indexability: Indexed.