Patawise Tools
Free · No sign-up · Private by design

Free marketing tools that just work

Fast, accurate calculators and builders for marketers, agencies and business owners. Everything runs in your browser, so your numbers never leave your device.

Browse tools UTM Builder
  • Data never leaves your browser
  • Instant results as you type
  • No account needed

Tracking & URLs

Tag and manage campaign links so every visit is attributed correctly.

UTM Builder

Create clean, consistent UTM-tagged campaign links.

Ad Metrics

Calculate and interpret the numbers that decide whether ads are profitable.

ROAS Calculator

Return on ad spend, plus the break-even ROAS you need.

CPA Calculator

Cost per acquisition and your maximum affordable CPA.

CPM Calculator

Solve for CPM, cost or impressions from any two values.

Ad Copy

Write ads that fit every platform limit the first time.

Built for people who run campaigns

Small tools for the repetitive tasks in everyday marketing work.

Private by design

Calculations happen on your device. We never receive the numbers, URLs or ad copy you enter.

Instant and lightweight

Pages load in a blink and results update as you type. No accounts, pop-ups or waiting.

Formulas you can check

Every tool shows the formula it uses, with worked examples and plain-language explanations.

One place for the basics

Tracking, ad metrics and ad copy tools that link together, so you can go from plan to launch.