
Striker Warren Feeney has signed a one-year deal with Plymouth and will now remain at Home Park until the summer of 2013.
Goalkeeper Ollie Chenoweth has extended his contract with Plymouth Argyle for another year.
Plymouth's former goalkeeper Luke McCormick - who is still in prison - is set to join Swindon on trial when he is released in June.
Warren Feeney and Robbie Williams are among five out-of-contract players to be offered new deals at Plymouth.
Plymouth owner James Brent is keen to retain the services of manager Carl Fletcher, despite being approached by other potential bosses.