Chronos Backups
Chronos Backups
Keep Minecraft worlds safe without filling your disk. Smart chunk pruning, the broadest version range of any Minecraft backup mod, and optional Google Drive sync.
Privacy Policy for Google Drive authorization
Chronos Backups is a multi-loader, multi-version Minecraft backup utility that keeps your world safe without filling your disk. Instead of backing up every chunk, it intelligently prunes backups to include only the most important parts of your world, dramatically reducing backup size while preserving the areas that actually matter. A shared core with loader-specific shells lets it run on Fabric, NeoForge, Forge, Bukkit, Spigot, Paper, Purpur and Folia from 1.7.x through 26.x, making it the broadest version range of any Minecraft backup mod. The mod is completely serverside, so vanilla clients can still play while it is installed.
Backups can be triggered manually via /chronos or run on a schedule.
Backup frequency, permission level, compression (zip or none), a maximum number of
stored backups, and a copy-blacklist prefilled with sensible defaults for common
server setups can all be configured. Finished backups can also sync to the cloud
(currently Google Drive), with optional deletion of the local copy after a
successful upload. Other cloud providers are planned.
At the heart of Chronos is a custom Rust-native chunk pruning library, built for speed using MCA parsing and NBT processing. Chunks that haven't been played in long enough can be excluded from backups based on configurable playtime thresholds.
Reliability across more than 250 Minecraft version and loader combinations is
backed by a dedicated testing toolchain. A Docker-based testServers
suite spins up a dedicated server for every supported combination, checking that
the mod loads, initializes correctly, and runs a speedtest to verify functionality
and performance. GitHub Actions CI cross-compiles native Rust libraries on Linux,
Windows, and macOS, merges the artifacts, and builds every variant JAR on each push.
/chronos, with configurable retention and compression.