Spring is the season when many high school seniors fret, waiting anxiously to hear whether they have been accepted to college.

Jasmine E. Harrison, a 17-year-old senior at The Academy at Smith in Greensboro, N.C., was no different. And hear she did — more than 100 times.

Ms. Harrison was accepted to 113 colleges and universities out of the 115 to which she had applied. The scholarship offers she received totaled more than $4 million, according to Ms. Harrison and her mother, who kept track of the financial offers on an Excel spreadsheet.

“At first I could not believe it, but then I was like, ‘Wow.’ I felt honored,” Ms. Harrison said.

She is among the millions of high school students who use online college application tools that make it easy to apply to multiple institutions at once. Most use the tools, like the Common Application, to pitch their academic credentials to between four and 20 schools.