The 25-year-old Smith had 14 goals and 12 assists in 75 games in his first full season. He added four goals and two assists in the playoffs, where the Blackhawks lost to the eventual Stanley Cup champion Los Angeles Kings in the Western Conference finals.
Raanta, also 25, was 13-5-4 record with a 2.71 goals-against average and a .897 save percentage in 25 appearances. He will likely back up Corey Crawford again next season.
The 23-year-old Morin scored five goals in 24 regular-season games last year and played in two playoff games.
The deals were announced Friday.