AdviceJanuary 19, 2026
How to write a one-liner that actually works
Your one-liner is the most important sentence in your pitch. The 50-character rule and formulas that work.
Mari Luukkainen
Founder
Your one-liner is the most important sentence in your pitch. The 50-character rule and formulas that work.
Mari Luukkainen
Founder
Your one-liner is the most important sentence in your pitch. Here's how to write one that works.
Your one-liner appears:
It's how people describe you when you're not in the room.
A bad one-liner creates confusion. A good one-liner creates recall. A great one-liner creates intrigue.
Every effective one-liner has two parts:
That's it. No adjectives. No buzzwords. No "leveraging" or "revolutionizing."
Examples:
Notice what's missing: no "AI-powered," no "next-generation," no "world-class."
We analyzed the one-liners of YC's 91 most successful companies. Average length: 47 characters.
Short one-liners work because:
If your one-liner is over 60 characters, it's probably trying to do too much.
Try this structure:
[What you do] for [specific customer]
Or this variation:
[Outcome] for [specific customer]
Both formulas force you to be specific about who you serve.
Bad: "We're building the future of work" Better: "Async video messaging for remote teams"
"Future of work" could mean anything. Async video messaging is concrete.
Bad: "An AI-powered platform that helps enterprise companies optimize their marketing spend across multiple channels using machine learning and predictive analytics" Better: "Marketing budget optimization for enterprises"
The long version is a product description. The short version is a one-liner.
Bad: "Uber for dogs" Better: "Dog walking, on demand"
"X for Y" analogies were clever in 2012. Now they're clichés that obscure more than they reveal.
Bad: "AI-powered contract analysis" Better: "Contract review in minutes, not days"
Customers don't care about AI. They care about outcomes.
Bad: "Cloud-based inventory management" Better: "Inventory management for restaurants"
"Cloud-based" tells me nothing about who uses it. "For restaurants" tells me exactly who cares.
Your one-liner passes if someone can answer these questions after hearing it:
If any answer is unclear, rewrite.
Write 10 different descriptions of your company. Don't edit. Just write.
Who specifically uses your product? Not "companies" or "businesses." Who?
Pick the most specific customer you can.
Take your best action description and your most specific customer:
"Email automation for enterprise SDRs" "Pipeline management for B2B sales teams" "Deal tracking for account executives"
Share your one-liner with 5 people who don't know your company. Ask them to explain what you do back to you.
If they get it right, you're done. If they're confused, iterate.
One-liners can change as your company grows.
Early stage: Be specific to your wedge "Invoice financing for trucking companies"
Growth stage: Broaden as you expand "Working capital for logistics companies"
Scale: Claim the category "The financial platform for supply chain"
Start narrow. Expand as you earn the right.
Fintech:
Developer tools:
Healthcare:
B2B SaaS:
Read your one-liner out loud. Then answer:
If you answered no, yes, yes: you're ready.
A good one-liner won't raise your round alone. But a bad one will make everything else harder.
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