ModsJava
Sandboxes
One-click creative sandbox from any survival world. Copy, experiment, and return — your original world is never touched.
⬇ Download on ModrinthWhat is Sandboxes?
Sandboxes lets you copy your survival world into a creative duplicate for experimenting with builds, redstone, or layouts — then return to survival when you are done. Your original world is never touched.
Features
- One-click sandbox — create a creative copy of any survival world instantly
- Return to survival — switch back to your original world from the pause menu or keybind
- Multiple sandboxes — manage several sandboxes per world with create, sync, rename, and delete
- Auto-sync — re-copy your survival world into an existing sandbox to pick up new changes
- Sandbox mode indicator — red "SANDBOX MODE" label on the pause menu so you always know where you are
- World list cleanup — sandbox worlds are hidden from the main world selection screen
- Pause menu integration — sandbox button in the pause menu for quick access
- Inventory button — optional sandbox button in the inventory screen
Requirements
- Minecraft 1.21.11
- Fabric Loader 0.15.0+
- Fabric API
- MenuKit (required)
Note
Sandboxes is designed for singleplayer worlds. It copies the world at the file system level, so it only works with local saves.
Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.21.11
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
Verified by MCModsHub
- Ships as sandboxes-1.0.0.jar — drop this file into the mods folder
- Download size: 4.2 MB
- Download link checked 22 Aug 2026 — working
These come from our own check of the pack file, not from the source page.