You upload your .es3 or .txt save file to the web interface. The tool formats the keys and values into a clean, expandable tree structure. You change the numbers or strings, then click export to download the modified file.

The save editor fixes this instantly.

after saving; a file size of 0KB means the saving process failed.

Assuming you have found a safe, legitimate version (popular community versions include "ES3 File Viewer" or forks of the original "ES3 Editor"), here is the standard workflow:

: A powerful GUI tool specifically for R.E.P.O. that lets you modify inventory and skills.

files for security. To edit these for free, you may need community hooks: ES3SaveHook (BepInEx)

Search for a free online tool like JSON Editor Online or JSONFormatter . Drag and drop your .es3 or .save file into the browser.

Most save editors on the market are either game-specific (e.g., an editor just for Stardew Valley ) or cost upwards of $20. An ES3 save editor, however, is universal. Because it targets the Easy Save 3 plugin itself, it can theoretically edit any game that uses that system.

What (gold, level, items) are you trying to change?

I can provide the exact steps or python scripts needed to parse your file.

| Method | Difficulty | Free? | How It Works | |--------|------------|-------|---------------| | (e.g., HxD) | Hard | Yes | Manually alter raw bytes. Only works if data is uncompressed/unencrypted. | | Game-Specific Trainer (e.g., Cheat Engine) | Moderate | Yes | Modifies values in memory while the game runs, then you save normally. | | Decompile the Game (e.g., dnSpy, AssetRipper) | Expert | Yes | Extract the game’s code to find ES3 variable names and keys, then write a custom script to edit saves. | | Use the ES3 Editor (if developer included it) | Easy | Sometimes | Some developers add an in-game debug console or developer panel to edit saves. Check the game’s modding community. | | Request a Mod | Varies | Usually | Ask modders on Nexus Mods or Discord. They may create a save editor for that specific game. |

Use Notepad++ or Visual Studio Code for better readability. Standard Windows Notepad may struggle with formatting.

C:\Users\[Username]\AppData\LocalLow\[DeveloperName]\[GameName]\

If you are a gamer or an indie game developer, you have likely encountered . It is one of the most popular save manager assets for the Unity game engine. Many popular games use it to encrypt and store player progress, inventory, and world states.