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Adrythm
Book 20 minutes

Free tools

Free marketing and website tools

Practical utilities for checking the numbers behind a campaign and preparing the details before it goes live. No account required.

Directory

Start with the job in front of you.

Advertising calculators

Break-even ROAS calculatorFind the return on ad spend needed to cover contribution costs and retain a chosen per-order profit.Open tool

Campaign setup

UTM builderAdd campaign parameters to an HTTP/S URL while keeping unrelated parameters and fragments intact.Open tool

How they work

Your working details stay in your browser.

LOCAL OPERATION

Calculations and URL building happen in your browser. Entered data is not sent or saved.

CLEAN START

Work is memory-only. Refreshing the page or leaving the tool clears it, and your inputs do not become part of a link.