World Syncer
by Tomesh
Players who switch between computers can keep one Minecraft world up to date on every device with World Syncer, a Fabric mod that synchronizes world data.
What it does
World Syncer copies world data between devices so the same save stays aligned wherever it is opened. A player installs the mod on each device, logs in with the same GitHub access token, and the worlds are kept matched through an automatic synchronization process. Setup is limited to the token and the mods folder, and the mod focuses only on the data a world needs.
The mod works with Minecraft Java Edition on Fabric and needs both Cloth Config API and Mod Menu. Because the environment is client and server, the server and every player need it. Builds cover 1.20.1 – 1.21.5, and the latest Fabric file is 1.1.0 for 1.21.5, published on 2025-05-20. The code is open source under the MIT License.
Key features
Automatic synchronization
Changes to a world are pushed to the other devices that use the same access token, without manual copying.
Multi-device play
A world can be opened on several computers, and each session picks up the latest saved state.
Experience backup
Experience points are included in the synchronized data, so a player's progress is kept with the world.
Lightweight data sync
Only the essential world data is transferred, which keeps the extra load on the game small.
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 2
Use cases
Switching machines
A player who moves between a desktop and a laptop can continue the same world on either one.
Running multiple sessions
Someone playing several sessions from different locations can keep each copy of the world aligned.
Who it’s for: Players who use more than one computer and want one world available on all of them, and server owners who want the same save reachable from each device a player uses.
How it compares
Conduit is a Fabric and NeoForge mod for 1.20.1 – 26.2 under the Creative Commons Attribution 4.0 license, not open source, and it runs on the client and server. MineDrive is a Fabric client-side only mod for 26.1.2 – 26.2 with All rights reserved, and it is not open source. IDELogin is open source under the MIT License for Fabric, Forge and NeoForge, and it is client-side only for 1.20 – 26.2.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| World Syncer | Fabric | 1.20.1 – 1.21.5 | Client and server | 2025-05-20 |
| Conduit | Fabric and NeoForge | 1.20.1 – 26.2 | Client and server | 2026-09-04 |
| MineDrive | Fabric | 26.1.2 – 26.2 | Client-side only | 2026-07-26 |
| IDELogin | Fabric, Forge and NeoForge | 1.20 – 26.2 | Client-side only | 2025-02-03 |
Questions
Does World Syncer need Cloth Config API?
Does a server need World Syncer installed?
Which game versions does World Syncer support?
In the catalog
World Syncer is one of 4,058 Storage mods on ModsFinder, and one of 2,474 Storage mods for Fabric. 15,307 mods support Minecraft 1.21.5.
More from Tomesh
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What the author says
World Syncer is a Minecraft mod designed to seamlessly synchronize your world data across multiple devices. Whether you're switching between computers or running multiple sessions, World Syncer ensures your world is always up-to-date and accessible wherever and whenever you play.
Official listing
- Modrinth page
- modrinth.com/mod/world-syncer
- Owner
- Tomesh
- Published
- 2025-05-17
- Updated on Modrinth
- 2025-05-20
- Facts verified
- 2026-10-15