Name one prospect, pick what you're trying to do, and Warmline writes a genuinely personal cold email — grounded in real data, with the exact signal it used shown right next to the line.
Book a call — pain-led, soft CTA.
One free email. No card. No signup to try.
Enter a prospect on the left and hit Write the email — runs free, no signup.
No "I see you're a Founder at [Company]". Warmline pulls what actually matters, writes one line grounded in a real signal, and shows you the source — so the prospect can't tell, and you can.
Saw you're bringing on two SDRs — usually that means outbound's about to get noisy.
Left: the merge-field email every prospect deletes. Right: one grounded in a real signal, source shown.
Hi {first_name},
I see you're a {title} at {company} and thought I'd reach out.
We help companies like yours 10x their pipeline with AI. Open to a quick 15-min call?
Hi Jordan,
saw Acme's hiring two SDRs after the Series A — usually that's when outbound starts to sprawl.
We help small teams keep first-touch personal without the manual research grind. Worth a two-line reply?
Selling isn't reaching out. An intro isn't a collab. Pick the goal and the whole email — the ask, the tone, the structure — changes with it.
Saw you're scaling outbound — most teams hit a personalization wall around lead 50.
“I stopped writing first lines by hand. It pulls the one real thing and the line lands — reply rate went up, and I got my mornings back.”
“We run lists for 4 clients. This does in a click what used to be a junior's whole afternoon, and it doesn't read like a robot.”
“Clay was overkill for me. I just wanted a personal email out the door — this is exactly that, at a price that makes sense solo.”
Clay starts at $185/mo. SmartWriter at $49. Warmline starts free — and the paid plan is a fraction of either.
No card to try. The free email is real, full quality, and yours to keep.
Every line is built from a real signal and we show you the source. If there's nothing real to say, we say it honestly instead of making it up — no fabricated “I saw your post about X.”
Good outbound means doing 10 minutes of research per prospect, or sending slop you know gets deleted. Warmline does the research and writes the email — one prospect, one goal, one real fact, one personal email. That's the whole product.