ModsJava
Chrono Keeper Mod (26.2, 1.21.11) – Never Lose Your Builds to Sudden World
Java mod listed for Minecraft 1.21. Downloads from the MC Java Mods app on Android.
⬇ Download


Chrono Keeper Mod saves your Minecraft worlds by creating automatic and manual backup files. It protects all your building progress, inventories, and map data from crashes or corrupted chunks. You can set how often saves happen, store archives in custom folders, and restore older worlds in seconds.
![]()
Features:
- Saves your world automatically at set intervals from 1 to 120 minutes.
- Lets you create an instant backup by pressing F7 or running a chat command.
- Cleans up older files automatically based on file limits or retention days.
- Checks disk space to stop saving if your drive runs low on free room.
- Restores previous world saves directly with automatic folder structure checks.
- Uses multi-core file compression to speed up the archive process.
- Shows animated progress bars on your screen while files are saving.
- Locks archives with password encryption to keep your world data private.
- Recovers damaged configuration files automatically with default values.
- Displays hardware details, disk space, and save statistics in the menu.
- Includes translations for 14 different languages.
Commands:
/backup start: Creates a backup right away./backup restore <filename>: Restores a world from a selected archive file./backup restore <filename> -r: Restores a world and overwrites an existing folder./backup delete last: Removes the most recent backup file./backup delete all: Removes all backup archives./backup delete all <drive>: Removes backup archives on a specific drive./backup delete confirm: Confirms a deletion request./backup list: Shows all saved backups sorted by drive along with file sizes./backup info <filename>: Displays details about a specific backup file./backup reset: Stops the current backup process immediately./backup path game: Switches the save folder back to the default game directory./backup path set: Sets a custom save directory path./backup path show: Shows the current save mode and storage path.
Configuration:
auto-backup: Turns automatic world saves on or off.interval: Sets how many minutes pass between each automatic save.backup-limit: Sets the maximum number of backup files to keep.retention-days: Sets how many days backup archives are stored before cleanup.compression-level: Adjusts ZIP compression strength from 0 to 9.compression-threads: Sets how many CPU cores work on compressing archives.free-space-threshold: Stops backups when available disk room drops below this limit.archive-method: Switches between regular ZIP files and password-protected archives.
How to Use:
- Press F7 during gameplay to create a quick backup of your current world.
- Open the chat window and type
/backup startif you prefer using commands. - Open the in-game settings screen to adjust backup frequency and storage locations.
- Type
/backup restore <filename>whenever you need to roll back to an older save.
Screenshots:



Chrono Keeper Mod Download Links
Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.21.11
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: In MC Java Mods, or directly above on this page.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
File checked by MCModsHub
- Downloads as 522665.mcaddon
- Download size: 1.4 MB
- Download link checked 7 Oct 2026 — working
- Mirrored on our own servers — the download does not depend on the original host
These come from our own check of the pack file, not from the source page.