Updated
JSS (JavaScript Style Sheets) is an authoring tool for CSS that allows developers to use JavaScript to describe styles in a declarative, conflict-free, and reusable way. It provides a more powerful abstraction over CSS, enabling the use of JavaScript's full expressiveness in style definitions. JSS supports features like dynamic styling, theming, critical CSS extraction, and vendor prefixing. By bringing the power of JavaScript to CSS authoring, JSS offers increased maintainability and flexibility in styling complex applications, particularly useful in component-based architectures.
JSS belongs toDevelopmentJavaScript frameworkscategories.
10websites
use it — 0.4% of the 2,555 websites we scanned in the last 12 months
#24of 47
tools in its category seen in our scans (we recognize 179)
1public pages
on UptimeCard — open any of them to see how that site is doing
0.31% of all websites we track run JSS▼ 0.01 points since 20 Sep
Usually installed alongside
The bigger the bubble, the more of the 10 JSS sites also run the tool. Colour shows what the tool does. Hover or tap a bubble for details.
Google Tag Manager80%
Google Analytics60%
Facebook Pixel50%
Microsoft Clarity30%
theTradeDesk40%
Microsoft Advertising30%
Cart Functionality30%Similar tools in its category
Development: 179 tools known, 47 seen in our scans
Questions about JSS
- How many websites use JSS?
- We found JSS on 10 of the 2,555 websites we scanned in the last 12 months (0.4%). 1 of them have a public status page.
- What is JSS often used with?
- Among the websites we scan, JSS is often found alongside Google Tag Manager (80% of its sites), Facebook Pixel (50% of its sites), Preact (50% of its sites).
- What are the alternatives to JSS?
- Other development tools we recognize include React, Next.js, Vue.js, GSAP.
Is your website built with JSS?
UptimeCard checks it around the clock, tells you the minute it stops answering, and gives your visitors a status page.