grfcodec 6.0.6 GRF development tools

The Graphics Resource File (GRF) development tools are a set of tools for developing (New)GRFs. It includes a number of smaller programs, each with a specific task:

  1. grfcodec decodes and encodes GRF files for OpenTTD.

  2. grfid extracts the so-called "GRF ID" from a GRF.

  3. grfstrip strips all sprites from a GRF.

  4. nforenum checks NFO code for errors, making corrections when necessary.