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Mark Fairchild

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About this mod

FallrimTools includes ReSaver, which is a powerful savegame editor/cleaner for Skyrim Legendary Edition, Skyrim Special Edition, and Fallout 4.

Permissions and credits
Before you do anything, I highly recommend checking these pages:
Modding 101
Fallout 4 Mod List and Load Order Guide

Please support mod authors! Endorse their mods, send them some coffee money if you can afford it. It motivates them to keep producing quality work and to stick around and fix bugs, which makes tools like this unnecessary. If you'd like to support me, check my profile page!

If you ask for help and it turns out you're installing sketchy modpacks, I will laugh at you (I may still try to help anyway).

Fallout 4 Special Note!!!
Unattached Instances are a normal part of how Fallout 4 operates. I recommend you NOT clean them until I figure out how to distinguish between the ones that are still in use and the ones that are not.


  • This software is free and open source, and always will be.
  • Thank you to everyone who has been testing the tools and reporting their issues!
  • Special thanks to flexcreator -- the creator of Script Scalpel -- for writing such a great tool and giving me access to the Script Scalpel source code.
  • It includes ReSaver - the savefile cleaner.
  • It included other tools in the past, and may do so again in the future.

  • Java is a requirement -- ReSaver is written entirely in Java.
  • Mod Organizer 2 is strongly recommended for managing your mods.

What you can do to help
  • Test the tools! Report any problems! Report any annoyances!
  • Try cleaning a few savefiles 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 or Paypal.
  • Really, I'll accept anything. :-)
  • Seriously, I'll take a high-five, or a photo your cats. An envelope full of used bandaids? Sure!
  • But it's not necessary. I wrote these tools because I love Skyrim and Fallout. I require no compensation.

ReSaver - the savefile cleaner

ReSaver is a savefile editor, based loosely on the excellent user interface of SaveTool. It works with Skyrim Special Edition, Skyrim Legendary Edition, Skyrim Legendary Edition + Crash Fixes, and Fallout 4.

There are already two Very Good savefile editors out there; Save Game Script Cleaner (aka SaveTool), and Savegame Script Scalpel. I use them both and they are fantastic. They do have their problems though. Script Scalpel has a difficult UI and is a bit slow. SaveTool has quite limited filtering options. And at the time I'm writing this, neither of them can load savefiles from Skyrim Special Edition or that use the new file format introduced in Crash Fixes 10. And they can't handle Fallout 4. ReSaver is intended to correct those problems while adding useful new features for cleaning saves.

  • Reads and writes Skyrim SE, Skyrim LE, and Fallout 4 savefiles
  • Reads and writes the new Crash Fixes savefile format
  • Displays a TONS of useful information
  • Edits script data
  • Terminates threads (right-click on an ActiveScript and pick "Terminate")
Mod Parsing
  • Reads your ESM/ESP/PEX/BSA files looking for information that will help
  • identify which parts of the savefile are the ones that you're looking.
  • Just pick "Parse" from the File menu.
  • Works best if you use Mod Organizer.
  • Filter using regex (regular expressions)
  • Filter by plugin (right-click on a plugin)
  • Filter by mod (right-click on a plugin)
  • Filter to show what would be deleted by each cleaning operation
  • Deletes unattached script instances (in the "Clean" menu)
  • Deletes undefined elements (in the "Clean" menu)
  • Cleans formlists
  • Deletes plugin data
Not yet implemented
  • Exporting and importing savefile data
  • Cleaning of Havok data
  • Filtering scripts with invalid data
  • Analyzing mods managed by Nexus Mod Manager or Wrye Bash

ReSaver is quite stable and I use it myself. 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 savefile, hard drive, childhood, and kidneys. In other words, there is no guarantee of fitness for any particular purpose, etc. But it's pretty good.

See the Videos section on the Skyrim Special Edition page for more detailed instructions.
Getting started:

  1. Unzip the FallrimTools archive somewhere.
  2. Double-click on ReSaver.exe.
  3. Choose your savefile.
  4. You should see a tree structure that has all of the save's script elements.
  5. The #1 thing that most people need is to remove script instances that are not attached to anything.
  6. 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.
  7. Go to the "Clean" menu and select "Remove Unattached Instances".
  8. Save to a new file.
  9. Load your savefile in Skyrim/Fallout and make sure it's working properly