Free tools for media buyers

Three free calculators and builders for paid ads. They run in your browser: no sign-up, and nothing you type is sent to us.

ROAS calculator

Enter spend, revenue, conversions and margin to get ROAS, CPA, AOV and your break-even ROAS and CPA. Free and runs in your browser.

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Ad copy character counter

Paste ad copy and check it against each platform's official character limits. Covers Google RSA, Meta, TikTok, LinkedIn and X, with a source for every limit.

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UTM builder

Build tagged campaign URLs with presets and dynamic parameters for Meta, Google Ads, TikTok and newsletters, then copy them in one click.

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Also free: the ad specs cheatsheet, the AI Ad Tools Pricing Report – Q4 2026 and our open dataset (CC BY 4.0).