How can I build a beginner-friendly save editor for a JSON game save?

A full save editor probably isn’t a realistic first programming project. You’ll need to learn file handling, JSON parsing, searching nested data, and writing valid output. There may not be a universal step-by-step guide because the approach depends on the game’s save format. A good first milestone would be a small Python program that opens the JSON and prints selected fields, followed by a program that changes just one harmless value.

If your main goal is learning, practice first with a simpler format where the structure and meaning are documented. For example, you could make a small editor for music metadata or a custom JSON file that you design yourself. Once you’re comfortable with Python and JSON libraries, applying those skills to a game save will be much easier.

Since the file is JSON, it’s plain structured text and can be opened in a normal text editor. The difficult part is understanding which fields control which game features and whether the game uses additional validation, encryption, or cloud synchronization. Begin by making a copy, comparing two saves with only one in-game change between them, and carefully recording what changed. Don’t overwrite the original until you know your script works.

Visual Studio Code is perfectly fine, but it’s an editor rather than a shortcut around learning programming. Start with Python basics, especially variables, conditions, loops, functions, and reading and writing files. Then learn how to load JSON, inspect its structure, change a value, and save a new copy. Work on backups so you don’t accidentally damage your real save.