He was set to earn $6.5 million in 2015, the final season of a three-year, $17 million contract. Releasing Williams saves Philadelphia $6.5 million in cap space for next season.
Prior to signing with the Eagles in 2013, Williams had stints with the Tennessee Titans and Baltimore Ravens.
Williams, a seventh-round pick in 2008, started every game for the Eagles in each of the last two seasons. In 2014, he recorded 60 total tackles, two interceptions and 10 passes defended.
- Scooby Axson