Is jscs still maintained?

No — jscs stopped being maintained around April 2016. jscs's own maintainers named eslint as the successor.

• successor named by the maintainers
• high confidence
• package successor

What should I use instead of jscs?

jscs's own maintainers named eslint as the successor. eslint is not a drop-in replacement, so expect to change call sites.

How to migrate from jscs to eslint

Start from a fresh eslint --init config rather than a mechanical translation, and delegate formatting rules to Prettier; there is no maintained .jscsrc converter.

Why jscs is on this list

JSCS merged into ESLint in 2016: the JSCS maintainers joined the ESLint project and the two linters were consolidated into one. The npm package's last release was 3.0.7 in July 2016 and it is deprecated with a notice linking to the maintainer's announcement; the repository is described as unmaintained and was archived in March 2024. ESLint has since moved formatting rules out of core, so Prettier or @stylistic now covers the purely stylistic part of what JSCS did.

The succession is settled: primary sources agree and the ecosystem has already moved.

jscs alternatives

Beyond the primary recommendation, these are credible for jscs's use case:

• prettier — view on npm
• @stylistic/eslint-plugin — view on npm

Check your own project for jscs

npx dead-deps --all --min-state unmaintained

Run that in the directory holding your lockfile. If jscs is anywhere in your tree — a direct dependency or buried under something else — it appears in the report with this verdict, this successor and the same evidence links, alongside anything else that has stopped moving. Nothing is uploaded; the scan reads your lockfile locally and queries public registry metadata.

Exit code 1 means something was flagged, which makes npx dead-deps --min-state deprecated usable as a CI gate. See how verdicts are produced.

Evidence

Every claim on this page traces to a primary source. Check them:

• npm deprecation notice for jscs ("JSCS has merged with ESLint!")npmjs.com
• Maintainer post: JSCS — end of the linemedium.com
• Archived jscs-dev/node-jscs repository, described as unmaintainedgithub.com

Packages related to jscs

• tslintReplacement project: typescript-eslint · unmaintained since February 2019
• vue-resourceSuccessor named by the maintainers: axios · unmaintained since November 2016
• babel-preset-es2015Successor named by the maintainers: @babel/preset-env · unmaintained since April 2017
• create-react-appSuccessor named by the maintainers: vite · unmaintained since February 2025
• eslint-loaderSuccessor named by the maintainers: eslint-webpack-plugin · unmaintained since April 2020

See the full index of covered packages, or read the methodology for how a verdict is reached and why a quiet package is not a dead one.