Compressed and encrypted boardview used for ASUS, ASRock and Pegatron boards.

What is a .fz file?

An .fz file is a zlib-compressed parts-and-pins table wrapped in a stream cipher. A viewer needs the decryption key to read it; OpenBoardView asks you to enter the FZ key once in its settings, while FlexBV and BoardViewer handle it for you.

FZ files are small (often 100–600 KB). A file that is only a few kilobytes is usually a broken upload.

How to open a .fz file

  • OpenBoardView (FZ key required)
  • FlexBV
  • BoardViewer

If OpenBoardView shows an empty board for an .fz file, the FZ key is missing from its configuration.

Recommended software

Related formats