.nson Save Editor ^new^ Site

is a homebrew save file dumper, injector, and on-console editor specifically designed for the Nintendo Switch operating system (Horizon). This powerful tool allows users to edit saves directly on the console itself. For users running Atmosphere 0.10.0 or later, it is essential to use the snapshot version of EdiZon.

Incorrectly editing a file can lead to "save corruption," making the game crash or refuse to load.

Online tools such as Convert.Guru can assist with extracting readable text from .nson files and analyzing their internal hexadecimal structure. However, standard online converters often fail for .nson files because they lack the necessary game-specific parsing algorithms. These tools are best used for format identification and basic text extraction rather than comprehensive save editing.

: Supports multiple sizes from 8-bit to 64-bit (signed and unsigned). Floating-point numbers : Precise storage for decimal values. .nson save editor

: If you are working with Naninovel assets, there is a dedicated NSON Web Editor for encoding and decoding these files. General .nson File Information

It organizes game variables—such as player health, inventory items, coordinates, quest progression, and currency—into readable text keys and values.

Found a .nson file and have no idea how to open it? 🤔 is a homebrew save file dumper, injector, and

Locate your game's data folder (usually found under %USERPROFILE%/AppData/LocalLow/ on Windows or your specific console's save data management system).

An is a specialized software tool or web utility used by gamers to decode, modify, and re-encode game progression files utilizing the Network Serialization Object Notation ( .nson ) format.

import json

: While raw JSON files are plain text, human-readable, and easy to debug, they take up substantial disk space and load more slowly. Transforming them into binary format optimizes disk input/output, hides plain text variables from casual cheaters, and streamlines execution on platforms like the Nintendo Switch , PC, and mobile systems.

// Increase health from 50 to 999 "health": 999.0