Sandboxes
by trevlar
Sandboxes lets a player copy the current singleplayer world into a creative sandbox, so testing a build or a command never touches the survival save.
What it does
From the pause menu, a Sandboxes button sits directly above Save and Quit to Title. Clicking it opens a list of sandboxes for the world. Choosing Create New Sandbox makes a copy of the world under a new name containing today's date, and pressing Join opens that copy in creative mode with commands turned on.
Nothing done inside a sandbox reaches the real world, and the sandbox keeps its own inventory. Return to the world's name returns the player to the original survival save, with the inventory and position they had when they left. Rename keeps a label on each copy, Sync replaces a sandbox with a fresh copy of the current world, and Delete removes it after a confirmation. A quick-access button in the Mod Menu settings opens the Sandboxes screen.
Setup requires Fabric API along with MenuKit at a version from 7.0.0 upward but still under 8.0.0. Sandboxes runs on client and server and is published for Fabric only, for 1.21.11, 26.2 and 26.3. Copying works with local singleplayer saves only. The mod is open source under the MIT License.
Key features
Creative sandbox copies
Each copy of a singleplayer world opens in creative mode with commands on, for building or testing freely.
Survival save stays intact
Changes made in a sandbox never reach the original world, which resumes exactly where the player left it.
Fresh copy on sync
Sync replaces a sandbox with a new copy of the current world, keeping the sandbox name.
Rename and delete
Sandboxes can be renamed to track their purpose and deleted after confirmation when no longer needed.
Pause menu and settings access
The entry point sits in the pause menu, and a settings button in Mod Menu opens the Sandboxes screen directly.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 2
How it compares
OldMenu is a Fabric client-side mod for 26.2 – 26.3 under the MIT License, and it is not open source in the same sense as this mod's published code. Remove Buttons is also client-side only, for 26.2 – 26.3, under All rights reserved. NormalCreative is client-side only for 1.21.4 – 1.21.11 and is open source under the MIT License, so it targets older versions than Sandboxes.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Sandboxes | Fabric | 1.21.11 – 26.3 | Client and server | 2026-10-13 |
| OldMenu | Fabric | 26.2 – 26.3 | Client-side only | 2026-10-05 |
| Remove Buttons | Fabric | 26.2 – 26.3 | Client-side only | 2026-06-19 |
| NormalCreative | Fabric | 1.21.4 – 1.21.11 | Client-side only | 2026-02-16 |
Questions
Can Sandboxes be used on a multiplayer server?
Which game versions are supported?
In the catalog
Sandboxes is one of 8,016 Management mods on ModsFinder, and one of 5,930 Management mods for Fabric. 8,071 mods support Minecraft 26.3.
More from trevlar
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What the author says
Sandboxes makes it safe to try things in your own world. Testing a risky build in your real world means hoping it works, and building it in a scratch world means losing the surroundings it was for. Sandboxes gives you a creative copy of your world to test in, then lets you walk back into survival exactly where you…
Official listing
- Modrinth page
- modrinth.com/mod/sandboxes
- Owner
- trevlar
- Published
- 2026-04-05
- Updated on Modrinth
- 2026-10-13
- Facts verified
- 2026-10-15