Pricing

Pay per usage

CSS Variables Inspector

Extracts every CSS custom property (--var-name) declared or referenced on a webpage. Returns properties grouped by :root and other selectors, plus var() references with no matching declaration. For design-system audits, theme migrations, brand-token extraction.

Pricing

Pay per usage

Rating

0.0

(0)

Developer

Coleton Patton

Actor stats

Bookmarked

Total users

Monthly active users

2 days ago

Last modified

Use cases

Design system audit — pull all design tokens from a competitor's site to compare
Theme migration — extract every var() reference before refactoring to a new design system
Brand color extraction — find the canonical hex/hsl values without screenshotting
CSS hygiene — detect var(--foo) references with no matching declaration (dead variables / broken references)

Input

{ "url": "https://example.com" }

Or batch:

{ "urls": ["https://stripe.com", "https://linear.app", "https://vercel.com"] }

Output (per URL)

{
  "url": "https://stripe.com",
  "totalDeclarations": 142,
  "rootCount": 87,
  "otherScopeCount": 12,
  "usedButNotDefinedCount": 3,
  "root": {
    "--brand-primary": "#635bff",
    "--brand-secondary": "#0a2540",
    "--space-1": "4px",
    "--space-2": "8px"
    /* ... 83 more ... */
  },
  "byScope": {
    ".dark-theme": {
      "--brand-primary": "#7a73ff"
    }
  },
  "usedButNotDefined": [
    "--legacy-blue",
    "--old-token"
  ],
  "scannedAt": "2026-05-15T22:00:00.000Z",
  "scannerVersion": "1.0.0"
}

Pricing

Free tier: 50 pages/month
Standard: $0.01 per page
Subscription: $19/month for 5,000 pages

Higher per-call cost than the Security Headers Scanner because this Actor uses Playwright (browser-based scraping) rather than plain fetch.

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