Free tools and calculators
Free helpers for anyone who wants to understand their website and ads better: work out ad costs, check campaign links and see how much a heavy statistics script slows your visitors down.
No account required. Everything runs in your browser.
Calculators
- Conversion rate calculator Work out conversion rate, traffic needed for a goal, and what a small lift is worth.
- Ad cost calculator Enter campaign numbers once — get CPC, CPM, CPA, CTR and conversion rate.
- Cookie banner traffic loss Estimate how many visitors vanish behind consent declines — and what that does to reported numbers.
URL tools
- UTM builder Generate correctly formatted campaign URLs without hand-editing query strings.
- UTM checker Paste a tagged URL, spot naming issues, copy a clean version.
Comparisons
- Script size comparison Google Analytics downloads many times more data on every pageview. PureMetrix stays under 3 KB — and needs no cookie banner on top.