None of the Browns' nine restricted free agents received the highest first- and third-round tender from the team Thursday and free safety Brodney Pool, a second-round pick in 2005, was not tendered.
Pool finished the season on injured reserve with at least the fourth concussion of his five-year career.
NFL teams must make a contract offer, or tender, to maintain negotiating rights to their restricted and exclusive rights free agents.
The free agency and trading period begins at 12:01 a.m. Friday as the NFL enters into a 2010 season without a salary cap and a lockout in 2011 looming.
Receiving second-round tenders from the Browns were fullback Lawrence Vickers, running back Jerome Harrison, linebackers D'Qwell Jackson, Matt Roth and Jason Trusnik and safety Abram Elam.
The Browns also tendered their three exclusive rights players -- linebackers Marcus Benard and Blake Costanzo and running back Chris Jennings.
Tight end Greg Estandia and safety/special teamer Ray Ventrone were other restricted free agents who went untendered. Starting this year, restricted free agents have less than six years of NFL experience.
The Browns' restricted free agents have until April 15 to sign one offer sheet with another team, which the Browns would have seven days to match. If they elect not to match, the Browns receive draft picks designated by the tender as compensation.
The tenders also set one-year salaries, although some are set by an average of the player's previous salaries. In the case of four-year veterans Harrison, Jackson, Vickers and Elam, the base salary is $1.759 million. For Roth, with five years, the base is $1.809 million.