The Big Payback, which challenges Tennesseans to support local nonprofits, raised $1,492,492.50 in 24 hours.
The money will go toward 525 different nonprofit organizations in the state.
"It's really important to help these nonprofit organizations. Really, the goal of the Big Payback is to help them raise money but also to help them gain awareness," said Ellen Lehman, president of The Community Foundation of Middle Tennessee.
The website was available for donations starting at 6 a.m. Tuesday.