cssinjs/jss
JSS is an authoring tool for CSS which uses JavaScript as a host language. observed · 2026-08-28
Health v2 · maintenance only
23/100
- Activity 0
- Release rhythm 8
- Longevity 100
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-03. Adoption (stars, forks) is never an input.
- gap_med: n/a
- age_days: 4343
- days_rel: n/a
- days_push: 750
- n_releases_24m: 0
Adoption not part of the score
7056 stars · 386 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded
JSS is a library for authoring CSS style sheets using JavaScript as the host language, generating and managing styles programmatically. It is a popular css-in-js solution, but the project is no longer maintained.
Use cases
- generate stylesheets from javascript
- css-in-js styling for react components
- dynamically compute css values at runtime
- scope styles to components without global css
- manage theme-based styling in javascript
When to choose
- you are maintaining an existing codebase already built on JSS
- you need runtime style generation with a mature, well-documented API
- you want a framework-agnostic css-in-js library
When to avoid
- starting a new project, since JSS is no longer maintained
- you want actively developed css-in-js alternatives like Emotion or styled-components
- you prefer static CSS or utility-first approaches like Tailwind
Facets
library · maturity abandoned
css-framework ui-components frontend-framework web-development frontend browser cross-platform css-in-js stylesheets javascript unmaintained nodejs
4 sources
- readme: https://github.com/cssinjs/jss · fetched 2026-08-28 · 4cdfb4183ab3
- homepage: https://cssinjs.org · fetched 2026-08-29 · 82143f475f89
- site_page: https://cssinjs.org/features · fetched 2026-08-29 · d9f24544d985
- site_page: https://cssinjs.org/faq · fetched 2026-08-29 · 7201021a0bd6
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| cssinjs/jss | main | 23 |
For agents
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem