If it holds email addresses, it's a source.

Bring your full Substack subscriber list — free and paid tiers both resolve into people.

Resolve your beehiiv audience and see which segments your growth loops actually attract.

Turn Kit subscribers into named people with roles, companies, and engagement truth.

Members export from any Ghost publication resolves straight into an audience map.

Small list, big clarity: see exactly who reads your Buttondown letter.

Resolve MailerLite subscribers and split the list by who they are, not just what they clicked.

Your Mailchimp audience becomes people: titles, companies, buyers, and dormant risk.

Join Klaviyo profiles with identity resolution to see which customer types actually read.

Export Brevo contacts and find the segments your campaigns are really reaching.

See the humans behind your automations before you build the next one.

Resolve Campaign Monitor lists into audiences you can describe in one sentence.

Clean and resolve long-lived Constant Contact lists that have quietly decayed.

Export people from Customer.io and see which lifecycle stages map to which humans.

Loops audiences resolve into roles and companies — useful before your next product email.

Resolve HubSpot contacts you never enriched, and validate the addresses sales keeps bouncing.

Contact and lead exports resolve into a deliverability-checked, identity-mapped audience.

Turn Pipedrive people into an audience view your marketing can actually use.

Attio workspaces export cleanly — resolve them to see audience mix by segment.

Any Airtable base with an email column becomes a resolved, validated audience.

That Notion database of contacts? Export it and finally see who's in it.

Match your customer file against readers: see which buyers read and which readers buy.

Stripe customers + your list = revenue per reader, frequency, and true LTV segments.

Resolve Gumroad buyers to find the audience segment your products actually serve.

Customer exports resolve into buyer personas you can write and build for.

Export WooCommerce customers and segment them by who they are, not just order count.

Every Typeform with an email field is an audience waiting to be resolved.

Tally form submissions become named, validated people in minutes.

Event guest lists resolve into exactly who showed up — and who to invite next time.

Attendee exports become segments: the people your events actually attract.

Form responses with emails export via Sheets and resolve like any other list.

Webflow form submissions become a resolved waitlist you can segment before launch.

Member lists from your community Slack resolve into the roles and companies in the room.

See who your Circle community really contains before you plan the next space.

Where you collect emails at the door (Ko-fi, forms), resolve them to know your server.

Your connections export includes emails for many contacts — a ready-made network audience.

The universal connector: any file with email addresses anywhere in it works.