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Package

langium

A language engineering tool for the Language Server Protocol

v4.4.0, 9 Sept 2026MITESM onlyTypes: BundledTypeScript tooling
$ npm install langium
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Key numbers

As of 25 Sept 2026
Weekly downloads
2.5m
+135% over 12 months
Gzip bundle size
-
No Bundlephobia data
Dependencies
8
Direct, from package.json
Last release
15 days ago
v4.4.0
GitHub stars
1k
105 forks
Open issues / PRs
102 / 10
Contributors
-
Commits, last 52 weeks
107

Downloads

Last week 2026-09-15 to 2026-09-21
02m4m6m8mSept 2025Mar 2026Sept 2026High 6.3m (14 Apr 2026)Low 1.1m (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.

2,534,138 downloads last week, 13,782,747 in the last month. The 12-month change of +135% compares the average of the last 4 weeks with the first 4 weeks of the series.

Maintenance

Releases, last 12 months
1146 in total
Latest version
4.4.0, 9 Sept 202615 days ago
First published
16 Jun 2021
Last push to GitHub
24 Sept 2026same day as the snapshot
Repository archived
No
Open issues
102
Open pull requests
10
Commits, last 52 weeks
107
Dependents on npm
121

Major versions

  1. v4 first release 4.0.0, 31 Jul 2025
  2. v3 first release 3.0.0, 29 Feb 2024
  3. v2 first release 2.0.0, 17 Aug 2023
  4. v1 first release 1.0.0, 16 Dec 2022
  5. v0 first release 0.1.0, 24 Jun 2021

Recent releases

VersionPublished
4.4.09 Sept 2026
4.3.12 Jul 2026
4.3.015 Jun 2026
4.2.411 May 2026
4.2.31 May 2026
4.2.27 Apr 2026
4.2.110 Feb 2026
4.2.027 Jan 2026
4.1.319 Dec 2025
4.1.226 Nov 2025
4.1.120 Nov 2025
4.1.019 Sept 2025
4.0.316 Sept 2025
4.0.216 Sept 2025

Compatibility

Module format
ESM onlyFrom package.json type, main and exports fields
TypeScript types
Bundled
Node.js engine range
>=20.10.0
Runtimes
-
Unpacked size (npm)
3.8 MB
Dependencies (8)
chevrotainvscode-urichevrotain-allstarvscode-languageserver@chevrotain/regexp-to-astvscode-languageserver-typesvscode-languageserver-protocolvscode-languageserver-textdocument

Install

npm install langium

CDN

  • jsDelivrhttps://cdn.jsdelivr.net/npm/langium@4.4.0/
  • unpkghttps://unpkg.com/langium@4.4.0/
  • esm.shhttps://esm.sh/langium@4.4.0
Sources: npm registry, npm downloads API, GitHub API. Data fetched 25 Sept 2026.

Indexability: Indexed.