Technology · JavaScript frameworks

JSS

JSS is one of 82 technologies we detect in JavaScript frameworks.

detected by AwesomeTechStack auditscssinjs.org

About JSS

JSS is an authoring tool for CSS which allows you to use JavaScript to describe styles in a declarative, conflict-free and reusable way.

How many people use JSS

GitHub · npm
  1. #45Inertia.js8.1k
  2. #46Elm7.9k
  3. #47Stitches7.8k
  4. #48JSS7.1k
  5. #49Marionette.js7k
  6. #50Twitter Flight6.5k
  7. #51Moon5.9k

10M npm downloads, last 30 days

#48 of 75 JavaScript frameworks we have counts for (of 82) · bars are GitHub stars across these neighbours; the category leader is React at 249k · as of September 7, 2026

Compare

JSS

#48 of 75 JavaScript frameworks

stars7.1k
downloads / 30d10M
Stitches

#47 of 75 JavaScript frameworks

stars7.8k
downloads / 30d5.7M

The two numbers disagree - one leads on stars, the other on installs. Stars measure attention, downloads measure use.

Audit any site that runs JSS.

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How we audit JSS

We measure the detected version against JSS's release history and grade the surrounding stack with a Lighthouse-grade quality audit. Weak or outdated links weigh more - one risky dependency can pull the whole score down.

How the score works

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Technology definitions from a community-maintained catalogue, licensed GPL-3.0. Attribution and source.