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Tech riderRev. 4 Oct 2026

CaCl2Backup

Ch 056.9of 28 Minecraft Backup Software
  1. 1Runs onself-hosted
  2. 2CostsFree plan
  3. 3Minecraft editionjava
  4. 4Scheduled backupsYes
  5. 5Backup scopeworlds only
  6. 6Storage destinationlocal
  7. 7Restore granularityfull backup
  8. 8Retention policycustom
8 lines stated Written from the maker's own pages: github.com
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Overview

CaCl2Backup is ranked #5 of 28 in Minecraft backup software on Specifiction. It runs on Self-hosted. There is a free plan.

CaCl2Backup plans and pricing

All plans
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
Yesgithub.com
Minecraft edition
javagithub.com
Scheduled backups
Yesgithub.com
Backup scope
worlds_onlygithub.com
Storage destination
localgithub.com
Restore granularity
full_backupgithub.com
Retention policy
customgithub.com

Facts

What it does
CaCl2Backup is a Minecraft server backup mod designed for Fabric.github.com · 3 Oct 2026
Backup triggers
It supports interval, daily schedule, and server-stop triggers that can be combined.github.com · 3 Oct 2026
Backup integrity
Backups use temporary output, full CRC verification, and atomic publication.github.com · 3 Oct 2026
Retention
Automatic cleanup supports both a maximum backup count and a maximum backup age.github.com · 3 Oct 2026
Restore
The mod can restore a world save from a backup, and restore replaces the current world save.github.com · 3 Oct 2026
Management
Operators can create, list, restore, and delete backups with /backup commands; commands require OP privileges.github.com · 3 Oct 2026
Configuration
The configuration can be reloaded without restarting the server.github.com · 3 Oct 2026
Requirements
The README lists Minecraft 26.0+, Fabric Loader 0.15.0+, Fabric API, and Java 25+ as requirements.github.com · 3 Oct 2026
Security
The project changelog says it added Zip Slip path-traversal protection and backup-name path filtering.github.com · 3 Oct 2026
Restore safeguards
The changelog describes validating level.dat before restore and rollback handling for failed swaps.github.com · 3 Oct 2026
License
The repository identifies the project license as MIT.github.com · 3 Oct 2026
Compatibility limit
The README specifies Minecraft 26.0+ in the 26.x series.github.com · 3 Oct 2026
Purpose
CaCl2Backup is a Minecraft server backup mod designed for Fabric.github.com · 4 Oct 2026
Compression integrity
The mod writes backups to temporary output, verifies CRC, and publishes them atomically after validation.github.com · 4 Oct 2026
Restore recovery
The changelog describes level.dat validation, preserved rollback worlds, automatic swap rollback, and recovery on the next start after failed startup.github.com · 4 Oct 2026
Access control
All /backup commands require operator privileges.github.com · 4 Oct 2026
Security fixes
The changelog reports fixes for Zip Slip path traversal, backup-name path filtering, and a TOCTOU race condition.github.com · 4 Oct 2026
Installation
Installation instructions say to put the mod JAR in the server's mods folder after installing Fabric Loader and Fabric API.github.com · 4 Oct 2026
Compatibility
The stated requirements are Minecraft 26.0+ in the 26.x series, Fabric Loader 0.15.0+, Fabric API, and Java 25+.github.com · 4 Oct 2026
Support
The repository page lists zero open issues when viewed.github.com · 4 Oct 2026
Integrations
The README documents Fabric and Minecraft requirements and does not name any external backup storage integrations.github.com · 4 Oct 2026

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Where it ranks on Specifiction

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Sources