More than eight million people flocked to their devices to watch the 43-year-old break the speed of sound live on Google's YouTube site. It is the largest number of concurrent live streams in the website's history, Google UK confirmed to the BBC.
Mr Baumgartner broke the record for the highest freefall. He jumped from a capsule taken to 128,100ft (24 miles; 39km) above New Mexico in the US by a giant helium balloon. It took nine minutes for him to reach the ground. The adventurer plummeted at an estimated 833.9mph (1,343km/h), hitting Mach 1.24.
"On the step, I felt that the whole world is watching," Mr Baumgartner said after the jump. "I said I wish they would see what I see. It was amazing."
The capsule from which the skydiver fell was equipped with cameras to provide a live internet feed to millions of people around the world.
A Google spokesperson confirmed to the BBC that the number of viewers simultaneously watching the Red Bull Stratos stunt live on YouTube was the site's highest.
