Lookalike Audience
An ad-platform audience built by finding people statistically similar to a source list, like your customers. Quality depends entirely on the source.
Free · no signup · last reviewed August 29, 2026
The definition
An ad-platform audience built by finding people statistically similar to a source list, like your customers. Quality depends entirely on the source.
Why it matters to an owner
Feed it your best customers, not your whole list — the algorithm clones whatever you hand it, including your mistakes.
This is the work. Want it done?
Everything here is free to use yourself — that’s the point. If you’d rather a senior marketer just handle it, in your accounts and your name: 20-minute call, no pitch deck.