How to Back Up Your Minecraft World

Guide Java Bedrock

Quick answer: Your world is a folder: Java keeps it in .minecraft/saves, Bedrock in the com.mojang/minecraftWorlds folder. Copy the world folder somewhere safe and you have a full backup - restore by copying it back. Do it before updates, mods and experiments.

What you need

Access to your game files (file explorer on PC)
Free disk space for the copy
Optional: cloud storage or a USB drive for off-machine copies

Step by step

Java (Windows): press Win+R, type %appdata%\.minecraft\saves and hit Enter. Each folder there is one world.
Java (Mac/Linux): saves live in ~/Library/Application Support/minecraft/saves (Mac) and ~/.minecraft/saves (Linux).
Bedrock (Windows): worlds are in %localappdata%\Packages\Microsoft.MinecraftUWP_8wekyb3d8bbwe\LocalState\games\com.mojang\minecraftWorlds.
Bedrock (mobile): on Android the same com.mojang folder lives in internal storage (games/com.mojang/minecraftWorlds) if the game is set to External/Application storage; iOS keeps it inside the app's files - use the Files app.
Close the game, then copy the whole world folder to your backup spot. Copying while playing can corrupt the copy.
To restore: put the folder back where it came from and restart the game. The world appears in the list with its original name.
Habit: back up before big updates, before adding or removing mods (Java), and monthly in general. Servers: copy the world folder while the server is stopped.

Java vs Bedrock

Java worlds and Bedrock worlds are not interchangeable - a backup can only be restored to the same edition.

Versions: Folder locations are current for the official launcher and Bedrock installs. Third-party launchers keep their own instance folders with a saves directory inside.

Frequently asked questions

Can I move a world from Java to Bedrock?

Not directly - the formats differ. Community converters exist, but they are unofficial and lossy; keep backups in their original edition.

My world disappeared - is the backup enough?

If the folder still exists in saves, the world is there - the list sometimes hides worlds after version issues. If the folder is gone, only a real backup copy (or file-recovery tools) can bring it back.

How big are world folders?

Fresh worlds are a few MB; long-played worlds with lots of exploring reach hundreds of MB to several GB. Check size before picking a cloud plan, but any USB stick handles most worlds.