Fabian Hedin co-founded Lovable, a Stockholm start-up that turns plain-English prompts into apps, and is its chief technology officer. Forbes put his fortune at $1.6 billion in March 2026, so he ranks among the youngest billionaires on its list.
Who Is Fabian Hedin?
Hedin is a Swedish engineer who, by his own account, had already sold a start-up before Lovable existed. He got into coding through Minecraft, because running a game server meant building a website for it, he says.
During an internship at ABB Robotics he designed a button that released every brake on a 4,575kg IRB 8700 industrial robot, so that it collapsed to the floor for a safety demonstration. “No robots were hurt in the process,” his LinkedIn profile adds.
He and a friend then started TenFAST, a property management system for landlords that went through KTH Innovation’s start-up programme. He says the exit “wasn’t like this super big exit, but it was enough”, yet TenFAST’s site still lists him as a co-founder and owner. A conference biography also credits him with work on Stephen Hawking’s personal computer and smart pillows built with ex-SpaceX engineers. We found no other record of either.
How Did Fabian Hedin Meet Anton Osika?
The pair met at Depict, a Y Combinator start-up in Stockholm where Osika was chief technology officer and hired him to lead front-end work. “So Anton was my boss,” Hedin says. He stayed ten months, his longest job to date, then quit to build his own thing.
One Saturday morning in the summer of 2023, Osika rang and woke him. “He’s like, ‘I’m outside your house,’” Hedin recalls. On the walk, Osika asked if he knew GPT Engineer, the open-source coding tool Osika had just put on GitHub. By the end they were talking about building a company around it.
Soon after, in June, Hedin made the first commit. Osika’s bedroom in a co-living house served as their meeting room. Hedin negotiated the first hire’s salary there, and the pair picked the name there, from “minimum lovable product”. Lovable.com then belonged to an Italian lingerie brand, which later sold it to them. Two launches failed before a third, in November 2024, took off.
When the pair visited San Francisco to meet investors, people kept asking why they would build from Stockholm, which was already the plan. “Wait, why? What are you doing? You should be here,” he recalls.
How Much of Lovable Does Fabian Hedin Own?
Hedin owns about a quarter, the same as Osika. Forbes estimated in December 2025 that each founder held about 24%, and its 2026 list put Hedin at $1.6 billion. After the $400m round at $13.3bn, our estimate is about 23%, or roughly $3.1 billion.
He plays it down. About 99% of his net worth sits in Lovable and “is in a sense paper money”, he says. “I’m still riding my bike to the office every day.” He adds that he had already reached his early-retirement goals with his previous start-up. His holding company also booked share gains of about SEK 100 million in 2025, and according to Dagens PS Osika has said both founders will give half their private wealth to charity if Lovable is sold or listed.
How Big is Lovable Now?
Lovable is big and now makes more than $600 million a year on a run-rate basis, Hedin said at HumanX in Amsterdam in September. He gave these figures the same week:
- about 400 staff, up from some 70 in autumn 2025
- around 700,000 paying users
- over a million new projects a week
- close to a billion visits a month to apps built on Lovable
“I’ll take engineering, product and design and you’ll take the rest,” he says he told Osika early on. He still posts engineering wins himself, such as a Rust rewrite that cut the time to start a sandbox from 14 seconds to 3.
He is also blunt about what AI means for software firms. “If your moat is the code that you have written and only the code, then yes, you’re in trouble,” he says.
What Went Wrong with Lovable’s Security?
“Security is the Achilles’ heel of vibecoding,” he wrote on X in April 2025. In May, Semafor reported that 170 of 1,645 apps Lovable showcased let anyone see user data.
Then, from 3 February to 20 April 2026, any logged-in user with a project link could open the chats and code of public Lovable projects, Lovable’s own account says. Hedin first wrote on X that its HackerOne partners had thought public chats were intended behaviour. Two days later Osika apologised, writing “that’s not because of our partners at HackerOne. It’s on us.”
How Do You Contact Fabian Hedin?
You can contact Hedin on X as @FabianHedin or on LinkedIn, where about 27,800 people follow him. For a longer listen, try Notion’s First Block interview or the White Box Rodeo episode recorded at HumanX.
Author: Akos Szima
See Also:
Who Owns Lovable? What the Filings Show Behind the $13.3bn Startup
What Is the Scaleup Europe Fund?
Frequently Asked Questions:
Forbes put his net worth at $1.6 billion in March 2026. At Lovable’s August 2026 valuation of $13.3 billion, his stake of about 23% is worth roughly $3.1 billion on paper, by our estimate.
No. He is co-founder and chief technology officer. Anton Osika, the other co-founder, is the chief executive.
He co-founded TenFAST, a property management system for landlords, ran the software firm Tentium and led frontend work at Depict, where Osika was his boss.
Industrial engineering and management at KTH Royal Institute of Technology in Stockholm.
