# geuis/helium-css

Helium - javascript tool to scan your site and show unused CSS

Repository: https://github.com/geuis/helium-css
Canonical: https://ross.abutalabs.com/products/helium-css
Language: JavaScript
License Family: other
Last push: 2015-07-13T19:21:08+00:00

## Health v2 (maintenance only)
Score: 32/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 6075, "days_push": 4069, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 3628, forks 231 (observed 2026-08-28T04:08:11.989090+00:00)

## What it is
Helium is a browser-based JavaScript tool that scans a list of pages on a website to detect unused CSS selectors across all loaded stylesheets. It generates a report of selectors not found in use on any tested page.

## Use cases
- find unused css selectors on my site
- detect dead css across multiple pages
- audit stylesheets for unused rules
- clean up bloated css files
- report which css classes are never used

## When to choose
- you want a quick, browser-only audit of unused CSS across many pages of a site
- you prefer a tool with no build step or server-side dependencies

## When to avoid
- you need actively maintained tooling or modern CSS feature support
- you want automated CI integration or headless scanning
- you cannot inject a script tag into every page of the site

## Facets
- artifact type: library
- maturity: abandoned
- function: developer-tools, testing
- domain: web-development, frontend, developer-tools
- platform: browser
- tags: css-audit, unused-css, dead-code-detection, browser-based, web-server

## Member repositories
- geuis/helium-css (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:08:11.989090+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T18:31:54.862365+00:00, confidence not recorded.
  - readme: https://github.com/geuis/helium-css (fetched 2026-08-28T04:08:11.989090+00:00, sha dedc5aab7f86)
- Data as of 2026-08-30T08:39:29.467469+00:00.