FastBack vs Simple Backup

FastBack is a free Minecraft mod for making incremental snapshots of Java worlds: each snapshot records only the parts that have changed. It can save backups locally, send them to another Git repository, or write them to a network drive without a Git server. Automatic backups can run when a world shuts down or after Minecraft autosaves, with a configurable minimum wait between runs. A snapshot can be restored as a separate world copy, so the current world files remain unchanged. Retention options include daily, fixed-count, GFS, and all-snapshots policies; snapshots can also include mod jars and configuration files. FastBack works on Minecraft clients and dedicated servers, with Linux, Mac, and Windows support. Separate Fabric and NeoForge mod files are listed. It requires native Git and Git LFS to be installed and available on the Minecraft process PATH. Garbage collection can take more than five minutes, and the documentation recommends running git gc directly for worlds larger than 1 GB. The mod is distributed under GNU Public License version 2; modpack use requires attribution with a link to the project page.

Simple Backup is a free, open-source utility for Minecraft Java server worlds. It schedules automatic backups at configurable intervals and can save them as ZIP archives, TAR.LZ4 archives, or direct directory copies. Backup jobs run asynchronously, and automatic runs can pause when no players are online. Configuration can cap the number of retained backups and stop a new backup when available disk space is too low. Server operators can start backups manually with commands for a general run, ZIP, LZ4, or directory output; the required permission level is configurable and defaults to level 4. Backups are stored in a `backup` folder in the game directory unless an absolute system path is configured. The mod runs only on the server, requires Fabric API, and lists Fabric and Quilt loader support. ZIP uses deflate level 5, while LZ4 files use `.tar.lz4` and need two extraction steps. Support is provided through a GitHub issue tracker.