World Downloader²
by Tantosy
World Downloader² lets a player save a Minecraft world to disk while playing it, whether the world is singleplayer or on a multiplayer server.
What it does
The mod is a client-side tool for saving worlds from singleplayer games and multiplayer servers. Only the client needs it, so servers run without it and players join without installing anything extra. Fabric API is required, and Mod Menu is optional for changing settings from the game's mod list.
Exported worlds can be opened in Creative mode with cheats enabled, which lets a player freely explore a copy of a build or a server's terrain. The mod is published for Fabric only, in version 1.0.1 for 1.21.11, and it is released under the MIT License. It is open source, and the source code is public.
Key features
Singleplayer export
Worlds played in singleplayer can be saved to a separate folder for later use.
Server world saving
Terrain and structures from a multiplayer server are saved to disk while the player is connected.
Creative exploration
Exported copies can be entered in Creative mode, where cheats are active and the saved terrain can be walked through freely.
Optional Mod Menu integration
When Mod Menu is present, the mod's options can be reached from the mods list.
Gallery
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 1
Optional 1
Use cases
Archiving a build
A player saves a finished world before it changes, keeping an offline copy of the builds in it.
Exploring a server copy
A player saves a server's world and explores its terrain in Creative mode, without affecting the live server.
Who it’s for: The mod suits players who want offline copies of their worlds and server owners' communities who want to explore saved terrain. Because only the client needs it, it does not have to be installed on the server.
How it compares
No Cheats is a Fabric mod for 1.21.11 that runs on client and server together, and it is not open source. Simple World Importer is a Fabric mod for 1.21.1 under All rights reserved, running on client and server. SmartLootFilter is a client-side Fabric mod for 1.21.11 under the MIT License, and it is not open source.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| World Downloader² | Fabric | 1.21.11 | Client-side only | 2026-03-28 |
| No Cheats | Fabric | 1.21.11 | Client and server | 2025-12-09 |
| Simple World Importer | Fabric | 1.21.1 | Client and server | 2026-03-29 |
| SmartLootFilter | Fabric | 1.21.11 | Client-side only | 2026-05-01 |
Questions
Does World Downloader² need Fabric API?
Does the server need World Downloader² installed?
Which game version does the mod support?
In the catalog
World Downloader² is one of 8,515 World generation mods on ModsFinder, and one of 4,027 World generation mods for Fabric. 19,862 mods support Minecraft 1.21.11.
Similar mods
Official listing
- Modrinth page
- modrinth.com/mod/worlddownloader
- Owner
- Tantosy
- Published
- 2026-03-27
- Updated on Modrinth
- 2026-03-28
- Facts verified
- 2026-10-15