The owner of OnlyFans, a site known for its adult content that is credited with revolutionizing the online porn industry, has died at the age of 43. Leonid Radvinsky, who was born in Ukraine and grew up in Chicago, had purchased the company in 2018 from its two UK-based founders, OnlyFans said.

The site's popularity surged during the Covid-19 pandemic, landing him on Forbes' annual list of billionaires just three years later. He passed away peacefully after a long battle with cancer, OnlyFans confirmed in a statement, which asked for privacy for his family.

Founded in 2016, OnlyFans is a social media platform where creators can post videos and photos and charge subscribers for tips or a monthly fee. The site is best known for its adult content, allowing creators to connect with fans through livestreams, personal messages, and customized requests.

Creators share various content beyond pornography, including fitness and cooking videos, and OnlyFans takes a 20% share of all payments. The company generated $1.4 billion in revenue in 2024, with over 377 million subscribers, and around 4.6 million creators posting content.

Under Radvinsky's leadership, OnlyFans saw significant growth, although the boom in size also attracted scrutiny regarding its adult content. Last year, British regulators launched an investigation into the platform's user age verification processes, which led to a fine for not responding accurately to requests for information.

Despite previous plans to ban sexual material on the platform, OnlyFans reversed its decision after backlash from creators. Radvinsky graduated from Northwestern University and had also pursued investments in tech through his venture firm, Leo.com. He was involved in philanthropy, donating to the Memorial Sloan Kettering Cancer Center. Tributes are pouring in, remembering Radvinsky as a visionary who reshaped how creators engage with their audiences.