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WARNING: Unattached Instances are a normal part of how Fallout 4 operates. Until I've determined how to distinguish between important unattached instances (still in active use) and the other kind (left behind by mods that were uninstalled), I recommend that you do NOT use the Remove Unattached Instances action on Fallout 4 savefiles.


NOTE: If you're having a problem with a savefile, and you want my help, you'll need to post the savefile here in the support thread so that I can run tests on it.




ReSaver is a savegame editor for Skyrim Legendary, Skyrim Special Edition, and Fallout 4. It is designed to provide more information that earlier tools, and to work with savefiles that other tools wont touch. It is relatively stable and reliable. Performance has gotten pretty good!


The interface is modelled after Save Game Script Cleaner; it's not quite as fast (because of Java instead of super speedy assembly language) but it is actively maintained and has a much richer feature set. Like filtering using regular expressions, and scanning your scripts and esps for context! For Skyrim Legendary, it should read and write saves that exceed the string table limit, as long as you're using Crash Fixes v10 or later.



  • Unzip the archive into a folder somewhere.
  • Double-click on the file "ReSaver.exe".


  • Unzip the FallrimTools archive somewhere.
  • Double-click on ReSaver.exe.
  • Choose your savegame.
  • You should see a tree structure that has all of the save's script elements.

The #1 thing that most people need is to remove script instances that are left behind when a mod is uninstalled.

  • Go to the "Clean" menu and select "Show Unattached Instances". This will filter the list and show only the script instances that aren't attached to anything.
  • Go to the "Clean" menu and select "Remove Unattached Instances".
  • Save to a new file.
  • Load your savegame in Skyrim/Fallout and make sure it's working properly.

ReSaver is quite stable and I use it myself. Fallout 4 support is still new and in a beta state.


I have hundreds of mods, including dozens of major quest mods. I NEED a serious save editor. That's why I wrote one. I can't promise that it's perfect. It's possible that it will ruin your savegame, hard drive, childhood, and kidneys all major organ systems. In other words, there is no guarantee of fitness for any particular purpose, etc. But it's pretty good.



  • Java is a requirement -- ReSaver is written entirely in Java.


  • Test the tools! Report any problems! Report any annoyances!
  • Try cleaning a few savegames with ReSaver, see it the new tool works at all.
  • Play with the tool, try to get it to crash in exciting ways. Let me know how you crashed it.
  • Find problems or annoyances with the user interface.


  • If you would like to donate, Steam gift cards are good, or donations through Nexus.
  • Really, I'll accept anything. :-)
  • Seriously, I'll take a high-five, or a photo your cats. An envelope full of your pubes? Sure!
  • But it's not necessary. I wrote these tools because I love Skyrim and Fallout.

What's New in Version 3.0.0


  • Now allows editing of GlobalVariables.

  • Create New...

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