GimpLensfun is described as 'Gimp plugin to correct lens distortion using the lensfun library and database'. There are 2 alternatives to GimpLensfun for Windows and Mac. The best alternative is ShiftN, which is free.
The list of alternatives was last updated Jun 17, 2018
ShiftN is an intelligent tool capable of analyzing photos and fixing the line distortion (line convergence) effect automatically or with minimal user’s input. Batch processing. View 21 alternatives to ShiftN