CaCl2Backup

CaCl2Backup is ranked #1 of 28 in Minecraft backup software on The Geeks Club. It runs on Self-hosted. There is a free plan.

CaCl2Backup plans and pricing

Free Free MIT-licensed Fabric server mod · requires Minecraft 26.0+, Fabric Loader 0.15.0+, Fabric API, and Java 25+ github.com · 4 Oct 2026

Compared on Minecraft backup software

Free plan: Yes
Minecraft edition: java
Scheduled backups: Yes
Backup scope: worlds_only
Storage destination: local
Restore granularity: full_backup
Retention policy: custom

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CaCl2Backup

What it does: CaCl2Backup is a Minecraft server backup mod designed for Fabric.
Backup triggers: It supports interval, daily schedule, and server-stop triggers that can be combined.
Backup integrity: Backups use temporary output, full CRC verification, and atomic publication.
Retention: Automatic cleanup supports both a maximum backup count and a maximum backup age.
Restore: The mod can restore a world save from a backup, and restore replaces the current world save.
Management: Operators can create, list, restore, and delete backups with /backup commands; commands require OP privileges.
Configuration: The configuration can be reloaded without restarting the server.
Requirements: The README lists Minecraft 26.0+, Fabric Loader 0.15.0+, Fabric API, and Java 25+ as requirements.
Security: The project changelog says it added Zip Slip path-traversal protection and backup-name path filtering.
Restore safeguards: The changelog describes validating level.dat before restore and rollback handling for failed swaps.
License: The repository identifies the project license as MIT.
Compatibility limit: The README specifies Minecraft 26.0+ in the 26.x series.
Purpose: CaCl2Backup is a Minecraft server backup mod designed for Fabric.
Compression integrity: The mod writes backups to temporary output, verifies CRC, and publishes them atomically after validation.
Price from: Free

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Where it ranks on The Geeks Club

Best Minecraft Backup Software in 2026#1 of 28

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Sources

github.com/RealCaCl2/CaCl2Backup· checked 3 Oct 2026
github.com/RealCaCl2/CaCl2Backup/blob/main/README_· checked 3 Oct 2026