We currently support KiCAD (.kicad_pcb files), and soon to support Eagle (.brd files). Both EDAs are free to use by all. Users in the Pro tier will benefit from broad EDA support, working with EDAs like Altium Designer, Zuken's CADSTAR, Mentor PADS, OrCAD, Allegro PCB designer, and Pulsonix that export IPC2581B files.
To render more rich information, you can optionally use your CSV formatted BOM populated with manufacturers part numbers too.