Free tools · no sign-up · runs in your browser
Free marketing analytics tools
Dolphin Analytics' free tools work out the numbers marketers check every week: UTM links, CPM, CTR, CPC, ROAS, ACOS, A/B test significance, customer lifetime value and conversion rate. Each one runs in your browser, needs no sign-up and shows the formula or rule behind the answer, so you can check the working yourself.
- Campaign links
UTM builder
Build tagged links with smart checks that catch a source and medium that don't fit before GA4 files the visits in the wrong channel.
Open the tool - Ad costs
CPM calculator
Work out cost per thousand impressions, or the budget or impressions from the other two.
Open the tool - Ad performance
CTR calculator
Work out click-through rate from clicks and impressions, plus CPC and CPM from spend.
Open the tool - Ad costs
CPC calculator
Work out cost per click, the budget a CPC needs, or the clicks a budget buys.
Open the tool - Ad returns
ROAS calculator
Work out return on ad spend and the break-even ROAS for your profit margin.
Open the tool - Ad returns
ACOS calculator
Work out advertising cost of sale (ACOS) and the break-even ACOS for your profit margin.
Open the tool - Testing
A/B test calculator
Check whether a split test result is statistically significant, with uplift and p-value.
Open the tool - Customer value
Customer lifetime value calculator
Work out customer lifetime value, lifetime profit and your LTV:CAC ratio.
Open the tool - Conversions
Conversion rate calculator
Work out conversion rate for a website, an online shop or an ad campaign.
Open the tool - Campaign links
UTM checker
Paste tagged links and find the naming mistakes that split or lose campaign data in GA4.
Open the tool - Tracking checks
GTM container audit
Drop in a Tag Manager export and find tags that never fire, duplicates, leftover Universal Analytics and clutter, with the fix for each.
Open the tool - Tracking checks
Sonar tracking scan
Scan any website for GA4, Tag Manager, ad pixels and consent setup, and see the problems it can prove.
Open the tool
Why does Dolphin Analytics give these tools away?
Dolphin Analytics builds these tools because the same sums come up in every tracking audit: what a campaign really cost per thousand views, whether a test result is real, which channel a tagged link will land in. The tools are free, with no email gate and no account.
If an answer looks wrong, the problem is often the tracking behind the numbers, not the maths. That is the work we do.
Frequently asked questions
Are the Dolphin Analytics tools really free?
Yes. Every tool is free to use with no account, no email and no usage limit. The result shows on the page as soon as you enter your numbers.
Does Dolphin Analytics see what I type into the tools?
No. The calculators and link builders run in your own browser, so the numbers and links you enter are never sent to Dolphin Analytics.
Can I use the results in client reports?
Yes. Each tool shows the formula or rule it used, so you can quote the method alongside the number.
Data giving you a headache? We'll take it off your plate.
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