SVF is the extension given to files used to test programmable structure electronics (PLD) designs. SVF is a file based on the JTAG standard. It contains data used in the process of testing electronic logic circuits, printed circuit boards and integrated circuits. It is a plain text file that can be edited with any editor.

SVF files are used, among others, by software solutions of the company Xilinx Inc, the largest producer of FPGA devices.