NomNom is the most complete savegame editor for NMS but also shows additional information around the data you're about to change. You can also easily look up each item individually to examine its attributes, independently of a savegame, or get other useful information that are not related to a specific savegame (but enhanced if one is loaded).

A .NET class library to read and write save files from the game No Man's Sky for all possible platforms as well as related actions.

A .NET class library to backup and restore collections in the game No Man's Sky.

A .NET class library to obfuscate and deobfuscate save files from the game No Man's Sky.

Collection of every procedural item in No Man's Sky.