Free tools for buying ad spots

Plan a campaign with free tools. Work out what a budget buys, check a market's ad rules and find publishers and DSPs.

Calculators

Ad cost calculatorA budget and a CPM in; impressions, clicks, cost per click and cost per conversion out.Open

Checkers

Does this website sell ads?Type a domain and see whether it sells ad spots, how to buy them, and whether it publishes an ads.txt.Open
Ad policy checkerWhether gambling, alcohol, crypto or health ads are allowed in a market, and on what conditions.Open
Market factsWho sells ads in a country, the languages people read, the rate where enough publishers publish one.Open

Finders

Where to launch a software toolFree accountDirectories, launch newsletters and tech titles graded for a product launch.Open
Where tech buyers readFree accountTrade and technology titles graded for credibility with B2B technology buyers.Open
DSP finderDSPs by the formats they carry, the deal types they support and who can open an account.Open
Ad spot typesPre-rolls, takeovers, newsletter sponsorships and 400 more, each with the publishers that sell it.Open
Channel explorerWeb, email, podcast, CTV, retail media, out-of-home and AI assistants, with who sells each.Open

Benchmarks and guides

Looking for a publisher, not a tool?

Search the directory by market, topic or channel.

Browse publishers