GerbV (GerberViewer) is a viewer for Gerber files; these files are generated from PCB CAD system and sent to PCB manufacturers as basis for the manufacturing process. The different layers of the PCB are separated into different files. Gerbv is a program which can display, edit, export, and do other manipulation of file formats used in PCB design (RS274X, Excellon drill, and pick-and-place). The core library (libgerbv) is available as a separate library, allowing other software to easily incorporate advanced Gerber functionality. It's one of the utilities affiliated with the gEDA project, an umbrella organization dedicated to producing free software tools for electronic design. There are two standards defining Gerber files: an old one called RS-274D, and a newer one called RS-274X. GerbV supports the following features:

Gerbv is also included in the Fedora Electronic Lab live distribution. Another Gerber software is associated to the suite KiCAD. Note: GerbV displays RS-274X files, but will not display RS-274D files!