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KERBAL SPACE PROGRAM SAVE EDITOR

Edit selected mission and persistence values from human-readable persistent.sfs saves using a structured text adapter. Use this page to review supported formats, back up your save, open the editor, and download the edited file when available.

Log in to save this editor
Funds Science Reputation PC / Steam 1 accepted formats Backup required PRODUCTION-READY
1
Accepted formats
2
Related guides
24 MB
Max file size

Before you edit

A few quick checks help protect your original save file.

  • Confirm that your file type is listed as supported on this page.
  • Keep an untouched backup before making any changes.
  • Edit a copy first, then test the edited save in-game before replacing your main file.

What to expect

Each game page shows the accepted files, related guides, and the safest download workflow.

  • The editor or tool may show its own instructions depending on the game.
  • Some games require extra checks before an edited save can be used safely.
  • Related guides can help you find save locations and avoid common mistakes.
⤴
Drop your save file here, or click to browse
Supports .sfs. Max size 24 MB. Keep your original backup before editing. Try the practice file.
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Third-party attribution details are listed when a separate source or license notice applies to this editor. See attribution details.

Editor overview

Check the supported file types, keep a backup, and use the editor carefully. This page is designed to keep the important safety information close to the editing workspace.

Game details READY
Game namesupported title
LIVE
Platformswhere this save editor applies
OK
Accepted filesfile types you can choose
1
Max file sizelargest file to use here
LIMIT
Backup adviceprotect your original save
REQUIRED
Practice fileoptional practice file
AVAILABLE
Safe editing steps Backup first
1. Choose filestart with a copy
STEP
2. Edit carefullychange only what you need
STEP
3. Download resulttest before replacing
STEP

Upload → edit → download

Choose a compatible save file, keep your backup, make the change you need, then download and test the edited copy.

Editing controls Guided workflow
Editor status Waiting for editor…
Original backup No file loaded yet.
Validation No validation message yet.
Editor workspace Loading editor…

Related guides

Related guides help you find save locations, understand risks, and edit carefully.

Guide links 2 items
How to edit a Kerbal Space Program save Edit selected persistent.sfs values safely using careful text-based editing and keep the original save untouched. Kerbal Space Program save file location Find the save folder and persistent.sfs file before editing or duplicating a campaign.

Export flow

Choose a compatible save, keep the original as a backup, make your changes, then download and test the edited file.

Workflow map Safe path
1. UploadChoose a compatible save file.
2. BackupKeep your original file as a backup.
3. Open editorOpen the editor workspace.
4. ValidateReview any validation messages shown by the editor.
5. ExportDownload the edited file.