The Audience Explorer lets you build a target and see the reach update live — before creating a campaign or spending anything.
How to use it
- Toggle dimensions — languages, libraries, command focus, seniority, OS, shell, open-to-work.
- Watch Estimated reach update: the number of matching developers and what share of the active audience that is.
- When it looks right, click Create a campaign — the same targeting drives your campaign's audience estimate, so the numbers match.
What the number means
Reach is the count of active, account-linked developers matching all your selected dimensions at once (AND across dimensions, OR within each). It's anonymous — a count only, never identities. Actual delivery also depends on your bid, budget, and how often those developers are in the terminal.