SFO Editor is a program that allows you to edit or create PARAM SFO/SFX files on the fly. This editor supports PS3, PS4, PSP, PSVita SFO files.

Requirement: Microsoft DotNet v4.0.

SFO/SFX also can be created using a command-line and XML file:

SFOEditor [-c] <inputfile.xml> [-sfo] or [-sfx] or <outputfile>

The [-c] command, which is used to create a new sfo/sfx file.

The <inputfile.xml> which is a template file that contains params.

The <outputfile> can ends with .sfo or .sfx. If you don't want to specify the output file, then use either [-sfo] or [-sfx] command to save the output file as the same name/location of the xml file.

Advanced

There is a file named SFOEditor.db, which has the same name as the GUI tool. This file is a database file which contains all known params for PlayStation systems that using this type of files.

This database file can easily be updated any-time with any new params if available. By renaming/deleting this file, the tool will load the default built-in params.

Also the same goes to the template files, it can also be edited, like add/edit/remove title, id, category etc. And you can delete the template folder if you don't want it's contents to be displayed in the menu.