Package

hermes-estree

Flow types for the Flow-ESTree spec produced by the hermes parser

v0.37.0, 14 Jul 2026MITCommonJSTypes: None

$ npm install hermes-estree

npm GitHub

Key numbers

As of 25 Sept 2026

Weekly downloads: 56.9m; +617% over 12 months
Gzip bundle size: -; No Bundlephobia data
Dependencies: 0; Direct, from package.json
Last release: 2 months ago; v0.37.0
GitHub stars: 11.3k; 869 forks
Open issues / PRs: 144 / 116
Contributors: 288
Commits, last 52 weeks: 1,066

Downloads

Last week 2026-09-15 to 2026-09-21

Weekly npm downloads, one point per week, weeks starting 23 Sept 2025 to 15 Sept 2026. The y axis starts at zero.

56,889,191 downloads last week, 257,172,726 in the last month. The 12-month change of +617% compares the average of the last 4 weeks with the first 4 weeks of the series.

Maintenance

Releases, last 12 months: 955 in total
Latest version: 0.37.0, 14 Jul 20262 months ago
First published: 3 Dec 2021
Last push to GitHub: 25 Sept 2026same day as the snapshot
Repository archived: No
Open issues: 144
Open pull requests: 116
Commits, last 52 weeks: 1,066
Dependents on npm: 294

Major versions

v0 first release 0.5.0, 3 Dec 2021

Recent releases

Version	Published
0.37.0	14 Jul 2026
0.36.1	6 May 2026
0.36.0	28 Apr 2026
0.35.0	9 Apr 2026
0.34.0	13 Mar 2026
0.33.3	7 Jan 2026
0.33.2	29 Dec 2025
0.33.1	21 Dec 2025
0.33.0	12 Dec 2025
0.32.1	22 Sept 2025
0.32.0	20 Aug 2025
0.31.2	16 Aug 2025
0.31.0	30 Jul 2025
0.30.0	24 Jul 2025

Compatibility

Module format: CommonJSFrom package.json type, main and exports fields
TypeScript types: None
Node.js engine range: Not declared
Runtimes: -
Unpacked size (npm): 480 kB
Dependencies (0): None

Install

npm install hermes-estree

CDN

jsDelivrhttps://cdn.jsdelivr.net/npm/hermes-estree@0.37.0/
unpkghttps://unpkg.com/hermes-estree@0.37.0/
esm.shhttps://esm.sh/hermes-estree@0.37.0

Sources: npm registry, npm downloads API, GitHub API. Data fetched 25 Sept 2026.

Indexability: Not indexed (discovery only): no category.