Most web calculators are bloated data-harvesters. I built Core Metric Suite to fix this.
It is a collection of 12 distinct micro-utilities hosted entirely on Vercel:
- AU Tax & Labour: Cents-Per-Km & SCHADS Award engines
- US Tax: Section 179 Vehicle Deductions & LLC Late Penalties
- UK Legal: Form 4A Rent Tracker & Section 8 Eviction Calculators
- E-Commerce & Media: Shopify Metafields Schema & Social Ad Safe Zone UI Previewers
The architecture is 100% client-side vanilla JavaScript. Zero server logging, zero database footprint, no cookies, and completely ad-free. It uses a static multipage directory architecture (/folder-name/index.html) so you can bookmark exactly what you need.
Check out the live utilities:
CoreMetricSuite
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