Founder stories
A small, elegant tool for producing newsletters, focused on simplicity for technical writers.
How Justin acquired customers
Tools used to build Buttondown
Justin Duke built Buttondown as a side project at Stripe into a profitable business with half a dozen employees - without raising VC.
When Justin Duke started building Buttondown, he didn't mean to start a company. He just wanted a newsletter tool that didn't feel broken.
"I was using TinyLetter," he explains. "I loved it. But they got bought in 2011; years later, it had just accumulated cobwebs. There were very obvious bugs."
He was working full-time as an engineer at Stripe, sending a newsletter to family and friends. On nights and weekends, he hammered away at his own version.
"It was just meant to be self-hosted. But I would show people and they'd say 'I'd use this! How much does it cost?'"
That was 2017. Today, Buttondown is a lean platform powering newsletters for thousands of customers with about half a dozen employees.
Justin never raised VC - not for lack of interest. "I owe my career to the tech industry. But if there's one complaint, it's the feast-or-famine mindset where you have this one possible correct end game: billion dollar exit or failure."
"We found a lot of success in selling customers on what we don't have. We'd deliberately reference Markdown on landing pages as a shibboleth. If you're terrified of Markdown, Buttondown probably isn't for you."
Scratching your own itch can lead to a real business
Side projects can grow sustainably without VC funding
Being opinionated about your product filters for ideal customers
You can compete with giants by intentionally staying focused and small
Inspired by Justin's journey? Generate a business idea in the Content Creation space using AI and real founder data.
Justin achieved 3 milestones on the path to $10K MRR
The journey, decisions, and context behind this milestone
See the complete breakdown: launch strategy, validation methods, startup costs, expert analysis, replication playbook, and more actionable insights.
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