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SPECIFICTION
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FastBack

pcal43.github.io

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Spec score 7.3 #12 of 30 in Minecraft Backup Software

What it is

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.

Spec sheet

What it does
FastBack is a Minecraft mod that creates incremental world snapshots, saving only the parts of the world that changed.Read 28 Sep 2026 · pcal43.github.io
Purpose
FastBack is a Minecraft mod that creates incremental world backup snapshots, saving only changed parts of the world.Read 29 Sep 2026 · pcal43.github.io
Integrations
FastBack supports LuckPerms permissions and remote backups to Git servers such as GitHub.Read 28 Sep 2026 · pcal43.github.io
Support
The documentation directs users who need help installing native Git to the maker’s Discord channel.Read 29 Sep 2026 · pcal43.github.io
License
FastBack is distributed under GNU General Public License version 2.Read 29 Sep 2026 · pcal43.github.io
Automation
Backups can run automatically when a world shuts down or after Minecraft autosaves.Read 29 Sep 2026 · pcal43.github.io
Backup storage
It supports local backups and remote backups to Git servers or network volumes.Read 29 Sep 2026 · pcal43.github.io
Compatibility
The maker’s site says FastBack works on Linux, Mac, and Windows, and on Minecraft clients and dedicated servers.Read 29 Sep 2026 · pcal43.github.io
Dependency
FastBack requires native Git and Git LFS to be installed and available on the Minecraft process PATH.Read 29 Sep 2026 · pcal43.github.io
Disk-space limit
Garbage collection can take more than five minutes, and the documentation recommends running git gc directly for worlds larger than 1 GB.Read 29 Sep 2026 · pcal43.github.io
Download formats
The download listing shows separate Fabric and NeoForge mod files.Read 29 Sep 2026 · curseforge.com
Local backups
The mod can back up worlds locally and restore a snapshot as a copy of the world.Read 28 Sep 2026 · pcal43.github.io
Mod files
Backup snapshots can include mod jars and configuration files.Read 29 Sep 2026 · pcal43.github.io
Notifications
On dedicated servers, FastBack broadcasts a message before a backup starts by default, and the message can be configured.Read 29 Sep 2026 · pcal43.github.io
Permissions
Dedicated-server backup commands are limited to level 4 operators by default, with fine-grained permissions available through LuckPerms.Read 29 Sep 2026 · pcal43.github.io
Remote backups
Backups can be sent to another Git repository or to a network drive without a Git server.Read 28 Sep 2026 · pcal43.github.io
Requirements
FastBack requires native Git and Git LFS to be installed.Read 28 Sep 2026 · pcal43.github.io
Restore
You can restore a snapshot as a separate world copy; restoring does not change the current world files.Read 29 Sep 2026 · pcal43.github.io
Retention
FastBack supports daily, fixed-count, GFS, or all-snapshots retention policies; its default keeps the last snapshot from each day and all snapshots from the last three days.Read 29 Sep 2026 · pcal43.github.io
Scheduling
Backups can run when a world shuts down or after Minecraft autosaves, with a configurable minimum wait between automatic backups.Read 28 Sep 2026 · pcal43.github.io
Supported use
The mod works on Minecraft clients and dedicated servers, and the maker lists Linux, Mac, and Windows support.Read 28 Sep 2026 · pcal43.github.io

Strong points and limits

Strong points

  • Snapshots record only changed world parts.
  • Backups can run at shutdown or after autosaves.
  • Restores create a separate world copy.
  • Retention policies include daily, fixed-count, and GFS.

Limits

  • Requires native Git and Git LFS.
  • Garbage collection may take over five minutes.
  • Large worlds over 1 GB may need direct git gc.

Who it suits

It suits Minecraft Java players and server operators who want automated, incremental world backups to local, Git, or network storage. Users must be prepared to install native Git and Git LFS.

Verdict

FastBack combines incremental snapshots with automated scheduling, several storage destinations, and separate-copy restores. Its Git and Git LFS requirements, along with potentially lengthy garbage collection, are important setup and maintenance considerations.

Where Specifiction places it

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