Eagles general manager Howie Roseman made the announcement in a statement Thursday. Terms of the deal were not disclosed.
Kolb spent his first three seasons with the Eagles behind Donovan McNabb, but stepped in when McNabb was injured in the season opener last year at Carolina.
The 2007 second-round draft choice promptly became the first NFL quarterback to throw for 300 yards in his first two starts.
His emergence made McNabb expendable, and the No. 2 overall pick in the 1999 draft was traded to the Washington Redskins earlier this month for a pair of draft picks.
