Free browser-based tools
Plan cleaner campaigns. Run better experiments.
Practical analytics tools that work without an account. Inputs stay in your browser.
01
Campaign planning
UTM Campaign URL Builder
Build consistent campaign URLs without sending data to a third party.
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02Experiment planning
A/B Test Sample Size Calculator
Estimate the visitors each variant needs before you launch an experiment.
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03Privacy checklist
Analytics Privacy Audit
Score your analytics setup against practical GDPR and privacy controls.
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