Unlike a general hex editor, a Unity save editor is designed to read the specific data structures Unity games use. Many Unity games serialize (save) their data in formats like:
An online save editor runs in your browser, decodes that file, and presents you with a simple GUI—sliders for gold, checkboxes for unlocked items, text fields for character names.
If you have found a web-based editor for your specific game, the process is usually straightforward. Here is the standard workflow:
| Game | Online editor available? | Safe approach |
|------|------------------------|----------------|
| Slay the Spire | ✅ Yes (community web editor) | Upload .autosave file |
| Hollow Knight | ⚠️ No true online editor | Use Scarab or save file decrypter (offline) |
| Subnautica | ✅ Yes (JSON-based editor) | Download → edit in browser → re-upload |
| Cuphead | ❌ No | Manual hex editing required | unity save editor online
This is the fun part. Depending on the tool, you might see:
For modifying Unity game data without specialized software, various online and local tools are available to help you edit save files across multiple platforms. Primary Online Editor The most widely used online tool for this purpose is the Universal Online Save File Editor Privacy-Focused : All file processing happens locally in your browser using WebAssembly
and JavaScript. Your save data is never uploaded to a server. Universal Compatibility Unlike a general hex editor, a Unity save
: It supports several game engines beyond Unity, including RPG Maker, Ren'Py, and Unreal Engine. Ease of Use : You can simply upload your file directly at saveeditor.top to start editing values immediately. Engine-Integrated Solutions
If you are a developer looking for tools to manage data within the Unity Editor itself, consider these assets: Save Manager by Carter Games : A free, modular system that includes a built-in Save Editor Window
. It allows you to modify game saves in "Edit Mode" without leaving the Unity interface and supports and AES encryption. Unity Save Game Editor (dshook) An online save editor runs in your browser,
: An editor script that displays a tree view of all loaded data. It is designed for saves that use the standard BinaryFormatter or JSON serialization models. Understanding Unity Save Formats
Most Unity games save data in one of three ways, which dictates how you can edit them:
: These are plain-text files that can be opened in any text editor like Notepad++.
: These files are compressed and require a dedicated editor (like the ones mentioned above) to translate the data into a readable format. PlayerPrefs : On Windows, these are often stored in the system registry
HKEY_CURRENT_USER\Software\Unity\UnityEditor\[Company]\[Product] ) and can be modified using the Windows Registry Editor. Unity Discussions Advanced Alternatives Requesting documentation on the Unity save file format