Witkowski will join the Red Wings on a one-year deal worth $750,000.
The 27-year-old was a member of the Tampa Bay Lightning during his career thus far. He had four points in 34 appearances in the 2016-17 season. Additionally, he spent time with the Syracuse Crunch in the American Hockey League, with five points in 19 games played.
This past season was the most playing time Witkowski has received at the National Hockey League level. He has spent the majority of his career in the AHL since the 2013-14 season.
Ansar Khan of MLive.com is reporting that this is it for free agency signings for the Red Wings.