Some good dubstep creator software programs are Virtual DJ and DubTurbo. Both have numerous features that give users the freedom to create original dubstep, such as different layout options, effects and a browser to find specific tracks to include.
Virtual DJ is a free program for home use without special equipment. If the software is to be used professionally or with professional hardware, a more advanced license is required. There are single price options and recurring subscriptions.
DubTurbo is a paid program that comes with over 3,000 samples to kickstart the music creation process. The software has tutorial videos to help users get familiar with the features.