Simple World Downloader
by J0KER2J0KER
Simple World Downloader lets a player copy a saved multiplayer server or singleplayer world, including its player inventories, ender chests and container contents, into a local save.
What it does
A button in the Escape menu starts the copy while a player is connected to a server or playing a singleplayer world. The copied world is written into the same folder as the singleplayer saves, so it opens like any other local world once the copy finishes. Player inventories, ender chest inventories and the contents of chests, barrels and other containers are included in the copy.
The mod targets the 1.20.5 – 26.3 range and is published for Fabric and NeoForge, with Fabric API required on Fabric. Mod Menu is optional and only adds its config entry to the mod list. Simple World Downloader is client-side only, so servers do not need it and players join without installing anything. The code is open source under the GNU General Public License v3.0 only, and snapshot builds are published alongside the release files.
Key features
Server world copy
Copies the world of a multiplayer server into a local save from the Escape menu while connected.
Singleplayer world copy
Saves a copy of a singleplayer world into the same folder as the other singleplayer saves.
Player and ender chest inventories
The copied world keeps each player's inventory and ender chest contents.
Container contents
Chests, barrels and other containers are included, so stored items are present in the copy.
Gallery
Compatibility
Latest build for each game version and loader.
26.x5 of 5 versions with builds
1.21.x12 of 12 versions with builds
1.20.x2 of 2 versions with builds
This mod also publishes snapshot builds. Snapshots are not shown in the matrix.
Requirements
Dependencies declared by the latest file for each loader.
Required 1
Optional 1
Use cases
Keeping a server world offline
A player who wants to explore a server build alone can copy it and open it as a singleplayer world.
Backing up a singleplayer world
A copy of a singleplayer save can be made from the Escape menu before risky changes.
Who it’s for: Players who want an offline copy of a server they visit, and players who want a second copy of a singleplayer world.
How it compares
Datapack Downloader is client-side only and open source under the MIT License, but it is published for Fabric only and for 1.20 – 1.20.1. Folders! (Worlds & Servers) is client-side only, open source under the GNU General Public License v3.0 only and covers 1.19 – 26.2, but it organises the world list rather than copying worlds. Litematica Enderchest Materials is client-side only, open source under the MIT License and runs on Fabric for 1.19.4 – 1.21.11, and it reads ender chest contents instead of copying a world.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Simple World Downloader | Fabric and NeoForge | 1.20.5 – 26.3 | Client-side only | 2026-10-04 |
| Datapack Downloader | Fabric | 1.20 – 1.20.1 | Client-side only | 2023-06-22 |
| Folders! (Worlds & Servers) | Fabric | 1.19 – 26.2 | Client-side only | 2026-06-30 |
| Litematica Enderchest Materials | Fabric | 1.19.4 – 1.21.11 | Client-side only | 2026-01-09 |
Questions
Does Simple World Downloader need to be installed on the server?
Which loaders can run Simple World Downloader?
Are snapshot builds supported?
In the catalog
Simple World Downloader is one of 36,990 Utility mods on ModsFinder, and one of 25,772 Utility mods for Fabric. 8,071 mods support Minecraft 26.3.
More from J0KER2J0KER
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What the author says
The saved world will be in the same folder as your singleplayer worlds. This Mod adds a button to the Escape-Menu which allows you to download a copy of the Server you are on to Singleplayer.
Official listing
- Modrinth page
- modrinth.com/mod/simple-world-downloader
- Owner
- J0KER2J0KER
- Published
- 2025-11-23
- Updated on Modrinth
- 2026-10-04
- Facts verified
- 2026-10-15