The National Oceanic and Atmospheric Association said rescuers were able to free the animal shortly before noon.
The whale was entangled off of Point Pleasant Beach, about 2 miles east of the Manasquan Inlet.
The agency had no further details about the rescue, including how the juvenile humpback estimated to be between 2 and 5 years old got trapped.
"Sometimes it takes until we get the gear off the animal to find out exactly what it is," NOAA spokeswoman Maggie Mooney-Seus had said earlier.
The Center for Coastal Studies in Provincetown, Mass., was leading the rescue. The group is a member of NOAA Fisheries Large Whale Disentanglement Network and is experienced and authorized in this type of whale rescue.
Authorities had set up a 300-foot cordon around the whale to keep onlookers away. A Coast Guard vessel stood by the whale after it was spotted Thursday until responders from the Center for Coastal Studies arrived on Friday.