Bradford have terminated the contracts of Michael Flynn, Craig Fagan and Chris Mitchell by mutual consent.
The contracts of all three players were due to expire in the summer and they have all been released early by manager Phil Parkinson.
Midfielder Flynn, 31, who arrived on a free transfer from Huddersfield in the summer of 2009, has made 36 appearances for the Bantams this season and was captain on a number of occasions.
Striker Fagan, 29, was given a one-year deal in September when he signed for an undisclosed fee, following his release from Hull the previous June.
Mitchell, 23, joined Bradford on a free transfer from Falkirk last summer and made 17 appearances for the club.