chronovault-backup
by dyzyyds
ChronoVault is a Fabric backup mod for servers that stores only the chunks that changed since the last backup, instead of dumping the whole world on a timer.
What it does
Backups are incremental and chunk-level. Each chunk saved by the server is captured through a Mixin injection, hashed with SHA-256, and written only when its hash differs from the previous copy. Hashed chunks are compressed with Zstd, and a built-in web panel lets administrators browse, inspect and start backups by hand. Cloud sync is listed among the mod's functions.
The mod is aimed at production servers where whole-world dumps are slow and disruptive. A region can be restored while the server keeps running, with selected chunks rolled back from an earlier copy, or restored cold with the server stopped, using coordinate inputs. A status engine reports health, queue size, dropped chunks and player count, and a live query lists block changes by player as they happen. A comparison tool sets two saved copies side by side, section by section.
The mod runs on the server alone, so players join without installing anything. It is distributed for Fabric only, with a single version: the latest Fabric file is 0.2.0 for 1.21.11, published on 2026-06-23. ChronoVault is released under the MIT License and is not open source. Commands use the cv prefix, and running them from the server console requires operator rights.
Key features
Incremental chunk backups
Only chunks whose SHA-256 hash changed are written, so repeated backups stay small.
Hot region restore
Selected chunks can be rolled back from an earlier copy while the server keeps running.
Built-in web panel
Saved copies can be browsed, inspected and started manually from a web page included with the mod.
Live audit and comparison
Block changes are queried in real time by player, and two saved copies can be compared at section level.
Config hot-reload
Settings can be changed and reloaded without restarting the server.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
How it compares
Player Guard is server-side only and released under the MIT License, with files for 1.21.1. Better World Backup is a client and server mod under All rights reserved, published for 1.21 – 26.3, so it must be installed on both sides. ServerBackupFabric is server-side only, open source under the CC0 1.0 Universal license, and built for 1.21.5 only.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| chronovault-backup | Fabric | 1.21.11 | Server-side only | 2026-06-23 |
| Player Guard | Fabric | 1.21.1 | Server-side only | 2026-08-10 |
| Better World Backup | Fabric | 1.21 – 26.3 | Client and server | 2026-10-07 |
| ServerBackupFabric | Fabric | 1.21.5 | Server-side only | 2025-04-15 |
Questions
Does ChronoVault need to be installed on the client?
Which loader and version does ChronoVault support?
Can a region be restored without stopping the server?
In the catalog
chronovault-backup is one of 4,058 Storage mods on ModsFinder, and one of 2,474 Storage mods for Fabric. 19,862 mods support Minecraft 1.21.11.
Similar mods
What the author says
Real-time chunk-level backup with SHA-256 dedup, Zstd compression, web panel, and cloud sync. Only stores what changed — no more wasteful full-world dumps. Traditional backup mods dump the entire world on a timer — slow, wasteful, and disruptive. ChronoVault captures chunks as they are saved via Mixin injection…
Official listing
- Modrinth page
- modrinth.com/mod/chronovault-backup
- Owner
- dyzyyds
- Published
- 2026-06-23
- Updated on Modrinth
- 2026-06-23
- Facts verified
- 2026-10-15