David Karp
The quiet, self-taught coder who built Tumblr into a sprawling, creative haven for a generation before its billion-dollar sale to Yahoo.
Born 1986 (age 40)·American web developer and entrepreneur·Birthday: July 6·Millennials
Biography
David Karp represents a specific breed of internet pioneer: the intuitive builder who operated more on feel than formal training. Dropping out of high school at 15, he immersed himself in New York's tech scene, learning to code through internships. The idea for Tumblr, conceived during a gap between contracts, was brilliantly simple—a streamlined, multimedia-friendly platform that made blogging feel as easy as sending a text. Launched in 2007, it wasn't the first microblog, but its clean design and social features catalyzed a cultural moment. Tumblr became the digital basement for artists, fandoms, and subcultures, a wildly creative and often chaotic space that Karp shepherded with a light touch. His decision to sell the company to Yahoo for over $1 billion in 2013 marked the end of an era. Karp's legacy is that of a facilitator who built the tools and then stepped back, letting a community define the experience.
Millennials
1981–1996
The first digital natives. Grew up with the internet, came of age during 9/11 and the 2008 crash. Highly educated, deeply indebted, slower to marry and buy houses. Redefined work, identity, and what it means to be an adult.
David was born in 1986, placing them squarely in the Millennials. The events that shaped this generation — the internet revolution, 9/11, and the 2008 financial crisis — shaped the world they entered and the choices available to them.
#1 When David Was Born
The biggest hits of 1986
#1 Movie
Top Gun
Best Picture
Platoon
#1 TV Show
The Cosby Show
David's Life & Times
The world at every milestone
1986Born
Challenger disaster; Chernobyl nuclear meltdown
Gas: $0.86/galHome: $66,600Min wage: $3.35/hrPresident: Ronald Reagan"That's What Friends Are For" — Dionne & FriendsBest Picture: Platoon
1991Started school
Soviet Union dissolves; World Wide Web goes public
Gas: $1.14/galHome: $82,400Min wage: $4.25/hrPresident: George H.W. Bush"(Everything I Do) I Do It for You" — Bryan AdamsBest Picture: The Silence of the Lambs
1999Became a teenager
Columbine shooting; Y2K panic builds
Gas: $1.17/galHome: $113,900Min wage: $5.15/hrPresident: Bill Clinton"Believe" — CherBest Picture: American Beauty
2002Could drive
Euro currency enters circulation
Gas: $1.36/galHome: $137,800Min wage: $5.15/hrPresident: George W. Bush"How You Remind Me" — NickelbackBest Picture: Chicago
2004Could vote
Indian Ocean tsunami kills over 230,000
Gas: $1.88/galHome: $157,300Min wage: $5.15/hrPresident: George W. Bush"Yeah!" — UsherBest Picture: Million Dollar Baby
2007Turned 21
iPhone released; Great Recession begins
Gas: $2.80/galHome: $172,600Min wage: $5.85/hrPresident: George W. Bush"Irreplaceable" — BeyonceBest Picture: No Country for Old Men
2016Turned 30
Donald Trump elected president; Brexit vote
Gas: $2.14/galHome: $181,700Min wage: $7.25/hrPresident: Barack Obama"Love Yourself" — Justin BieberBest Picture: Moonlight
2026Turned 40
Gas: $3.91/galPresident: Donald Trump
Key Achievements
- Founded Tumblr in 2007, growing it to host over 500 million blogs before its acquisition.
- Sold Tumblr to Yahoo in 2013 for approximately $1.1 billion while remaining as CEO.
- Began his career as a teenage intern for the parenting website UrbanBaby.
- Was awarded the 'Innovator of the Year' title by The Wall Street Journal in 2013.
Did You Know?
Karp taught himself computer programming and dropped out of Bronx High School of Science at age 15.
He initially envisioned Tumblr as a side project to fill time between consulting gigs.
Karp is an avid motorcycle enthusiast and often commuted to Tumblr's office on his bike.
He stepped down as CEO of Tumblr in late 2017, after Verizon's acquisition of Yahoo.
“We're not trying to build a library here. We're trying to build a living community.”
