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Open-source QA tools written in JavaScript: 32 listed

32 listed tools have JavaScript as the repository's primary language, as reported by the GitHub or GitLab API. The primary language is the language with the most code in the repository. It is not always the language tests are written in: a tool implemented in one language may drive tests written in another.

The table is sorted by GitHub stars, descending, on the fetch date. Filter by category, license or status, or select a column heading to sort. All languages.

Metrics as of , from the GitHub or GitLab API of each repository. Refreshed monthly.

Tools with JavaScript as the primary language. Sorted by GitHub stars, descending. Select a column heading to change the sort.
JSON Server75,71512026-03-231v1.0.0-beta.152026-03-231MITJavaScriptslow
Bruno47,11112026-08-201v4.1.02026-09-221MITJavaScriptactive
Lighthouse30,79912026-09-181v13.5.02026-09-181Apache-2.0JavaScriptactive
ESLint27,51612026-09-181v10.11.02026-09-221MITJavaScriptactive
Mocha22,89712026-09-171v12.0.22026-09-191MITJavaScriptactive
AVA20,82812026-05-171v8.0.12026-05-171MITJavaScriptslow
React Testing Library19,65612026-08-271v16.3.32026-08-271MITJavaScriptactive
Jasmine15,81612026-08-151v7.0.12026-08-201MITJavaScriptactive
supertest14,40412026-09-221v7.3.02026-09-221MITJavaScriptactive
Nock13,12612026-07-301v14.0.172026-07-301MITJavaScriptactive
Detox12,02712026-05-30120.51.32026-06-161MITJavaScriptslow
Nightwatch.js11,95312026-05-251v3.16.02026-05-251MITJavaScriptslow
Sinon.JS9,75912018-01-261v4.2.22026-07-201BSD-3-ClauseJavaScriptactive
autocannon8,52112024-10-141v8.0.02026-05-161MITJavaScriptslow
Chai8,26912025-12-221v6.2.22026-09-211MITJavaScriptactive
BackstopJS7,18112019-01-211v3.8.82026-09-081MITJavaScriptactive
Lighthouse CI7,09412025-06-261v0.15.12025-06-261Apache-2.0JavaScriptinactive
pixelmatch6,95712026-04-291v7.2.02026-09-151ISCJavaScriptactive
tape5,79712026-06-181v5.10.22026-09-181MITJavaScriptactive
nyc5,75912026-02-221nyc-v18.0.02026-05-171ISCJavaScriptslow
sitespeed.io5,03012026-09-111v42.7.02026-09-111MITJavaScriptactive
Pa11y4,53612026-08-28110.0.02026-08-281LGPL-3.0JavaScriptactive
CodeceptJS4,24012026-09-2214.2.02026-09-221MITJavaScriptactive
jest-image-snapshot3,91512026-03-091v6.5.22026-05-151Apache-2.0JavaScriptslow
Taiko3,67412026-07-071v1.5.02026-09-111MITJavaScriptactive
DOM Testing Library3,33212026-09-131v10.4.22026-09-131MITJavaScriptactive
c82,12112026-07-141v12.0.02026-07-141ISCJavaScriptactive
mountebank2,10512026-04-151v2.9.42026-09-121MITJavaScriptactive
Loki1,90912024-08-271v0.35.12024-10-121MITJavaScriptinactive
equal-access77812026-09-0814.0.342026-09-081Apache-2.0JavaScriptactive
axe-core-npm72412026-08-111v4.13.02026-09-021MPL-2.0JavaScriptactive
Pa11y CI63312026-05-1214.1.12026-05-121LGPL-3.0JavaScriptslow

1 Fetched from the GitHub or GitLab API on . Hover a value for its own date.