"A well loved young man and a promising future ahead.
"The family are completely devastated with the unexpected death of a son, brother, fiance."
The GoFundMe page had been set up to "raise some funds for unexpected costs, funeral expenses and anything else that may arise for Ingrid and Ryan [Mr Howard's parents] and Ebony [Blacksell, his girlfriend] during this painful period", it said.
Almost $7000 has been donated since the page was set up three days ago.
A thank you message from the page organiser said the money was "be a huge help to the family".
Initial investigations suggested the vehicle had left the road before smashing into a fence and a tree, police said.
Mr Howard died a the scene, while the 21-year-old male driver from Anstead was rushed to Royal Brisbane and Women's Hospital for treatment to a head laceration. Queensland police's forensic crash unit is investigating the incident.
