Whitley joined Wrexham from Cardiff a year ago and is now looking to get back into playing for the Dragons.
"If I get the opportunity to play for Wrexham again I will grab it," he said.
"The people here showed their faith in me, so I would be more than happy to come back and help out once again.
"I really enjoyed being back at Wrexham last season and was delighted that it eventually turned out well for the club.
"It's such a shame that after last year's heartache the club is once again in the relegation mire, but I'm sure that it can be turned around.
"It's only when you are not in the game that you realise just how much you miss it," he told the Wrexham website.
"I've been putting my life back on the straight and narrow and now really just want to concentrate on my football.
"We will just have to see how this week goes, but I'm up for the challenge and feel sure that I have plenty to offer the club over the rest of the season."