The teams will swap draft picks in the fourth and fifth rounds of the 2018 NFL Draft, ESPN's Adam Schefter reports.
Kizer was selected in the second round of the 2017 NFL Draft out of Notre Dame. During his rookie season, he completed 53.6 percent of his passes for 2,894 yards, 11 touchdowns, and 22 interceptions.
Randall, selected with the 30th pick in the 2015 draft, recorded 47 tackles, nine pass deflections, and four interceptions in 14 games last season.
The 25-year-old appears to be thrilled about his imminent move to the Browns:
Randall becomes the latest player to join the Browns amid a flurry of action Friday. Cleveland also reportedly traded for wide receiver Jarvis Landry and quarterback Tyrod Taylor, accelerating its offseason in a single afternoon.