CurseForge · Minecraft mod
Fast Async World Save[Forge/Neo/Fabric]
Prevent lag-spikes and data loss during intermittent world saves
Quick answer
Which Fast Async World Save[Forge/Neo/Fabric] release should I use?
Fast Async World Save[Forge/Neo/Fabric] fastasyncworldsave-fabric-26.3-2.6.jar targets 26.3 with Fabric. The project page does not say whether this file belongs on the client, dedicated server, or both. No extra mods listed for this file.
Where it goes
Is Fast Async World Save[Forge/Neo/Fabric] required on the client, server, or both?
The project page does not say whether this file belongs on the client, dedicated server, or both.
The source does not explicitly classify this release as client-only or server-only.
What else does Fast Async World Save[Forge/Neo/Fabric] fastasyncworldsave-fabric-26.3-2.6.jar need?
fastasyncworldsave-fabric-26.3-2.6.jar. Change the file and its required mods may change too.
This file does not list any required mods. Do not add a library just because a different file uses it.
This file does not list any required or optional mods.
Before you install it
Add Fast Async World Save[Forge/Neo/Fabric] without breaking your instance.
Built for Fast Async World Save[Forge/Neo/Fabric] fastasyncworldsave-fabric-26.3-2.6.jar. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use fastasyncworldsave-fabric-26.3-2.6.jar. It targets 26.3 with Fabric; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
This file does not list any required mods. Do not add a library just because a different file uses it.
- 03
Put it on the correct side
The project page does not say whether this file belongs on the client, dedicated server, or both.
- 04
Pick the file you checked
Use the “Get this file” button beside fastasyncworldsave-fabric-26.3-2.6.jar. It opens that exact file at the source.
About this project
What does Fast Async World Save[Forge/Neo/Fabric] add?
Fast Async World Save is a lightweight mod which handles saving of world data, player data and dimension data offthread which avoids lagspike issues during data saving to disk.
Requires Cupboard dependency to be installed
Only required on serverside.
No known incompatibility

If you enjoy this mod consider supporting the development, any support is greatly appreciated.
The development is an unpaid free-time activity, so any support helps being able to spend more time on it.
You can support me on Patreon or just spreading the word around.
Project description from CurseForge.
Pick your setup
Fast Async World Save[Forge/Neo/Fabric] by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
26.2
2 loader builds26.1.2
2 loader builds26.1.1
2 loader builds26.1
2 loader builds1.21.8
2 loader builds1.21.7
1 loader build1.21.6
1 loader build1.21.5
1 loader build1.21.4
1 loader build1.21.1
2 loader builds1.21
2 loader buildsShowing the newest 12 of 16 game versions. Older files are in the list below.
Check the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Fast Async World Save[Forge/Neo/Fabric] versions and loaders
fastasyncworldsave-fabric-26.3-2.6.jar
21 Sept 2026
fastasyncworldsave-26.2-2.6.jar
10 Jul 2026
fastasyncworldsave-fabric-26.1-2.6.jar
20 Apr 2026
fastasyncworldsave-26.1-2.6.jar
15 Apr 2026
fastasyncworldsave-fabric-26.1-2.5.jar
15 Apr 2026
fastasyncworldsave-fabric-1.21-2.6.jar
27 Aug 2025
fastasyncworldsave-fabric-1.20.1-2.6.jar
27 Aug 2025
fastasyncworldsave-1.21-2.6.jar
27 Aug 2025
fastasyncworldsave-1.20.1-2.6.jar
27 Aug 2025
fastasyncworldsave-1.21.8-2.5.jar
11 Aug 2025
fastasyncworldsave-fabric-1.21.8-2.5.jar
9 Aug 2025
fastasyncworldsave-fabric-1.21.4-2.5.jar
9 Aug 2025
Looking for an older file? The official CurseForge project page is in Resources.