World File Cleaner
by Wang125510
World File Cleaner removes non-critical leftover files from a Fabric world when a dedicated server stops or a single-player world unloads.
What it does
Once the server halts or a single-player save is closed, the mod runs a cleanup pass over the world folder. The set of files and folders it deletes is configurable, and the author lists logs, caches, session locks and statistics as examples. By default it removes only non-critical files; region files and player data are kept unless the server owner changes the configuration.
The mod supports dedicated servers as well as single-player and client sessions, so the same cleanup applies in each mode. A world file switch in the configuration turns the feature on or off. The configuration screen is reached through Mod Menu, which is an optional dependency and can be left out. The mod is published for Fabric only, for Minecraft 1.21.11, and is released under the MIT License, so the source code is open source.
Key features
Cleanup on shutdown
The cleanup runs automatically when a dedicated server stops or a single-player world is unloaded, with no command needed.
Configurable deletion list
Files and folders such as logs, caches, session locks and statistics can be added or removed from the deletion list.
Safe defaults
Out of the box only non-critical files are deleted, and region files and player data stay in place.
World file switch
A worldFileEnabled option lets an operator turn world file cleanup on or off in the configuration.
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.
Optional 1
Use cases
Who it’s for: Server owners who want leftover logs, caches and session files cleared each time a server stops, and players who manage many single-player worlds on Fabric.
Questions
Does World File Cleaner need Mod Menu?
Does World File Cleaner have to be installed on the client?
Will the cleanup delete player data or region files?
Which Minecraft versions does World File Cleaner support?
In the catalog
World File Cleaner is one of 3,545 Optimization mods on ModsFinder, and one of 2,575 Optimization mods for Fabric. 19,862 mods support Minecraft 1.21.11.
More from Wang125510
Similar mods
Official listing
- Modrinth page
- modrinth.com/mod/worldfilecleaner
- Owner
- Wang125510
- Published
- 2026-05-03
- Updated on Modrinth
- 2026-05-03
- Facts verified
- 2026-10-15