Play your favorite Java worlds with a controller on Xbox One or Xbox Series X/S.
The Universal Minecraft Tool is the best tool for the job.
This guide will show you how to easily convert your world to Bedrock edition first, and then we'll cover how to transfer that world to your Xbox console itself.
Did you know that when Minecraft updates, only the parts of your world you visit will actually be updated? This can be a problem for converters.
For example, in the 1.18 Caves and Cliffs update the world height was expanded (0 to 255 became -64 to 320).
So, if your world was played on anything before 1.18 at any point and was also played on or after 1.18 at any point, then only those recently visited chunks have the new world height.
After conversion, all the pre-1.18 chunks will become empty under Y:0 where new terrain is supposed to be! Minecraft won't see anything wrong with that since it can't tell the difference between a converted chunk and one you might have just dug out by hand.
Only the Universal Minecraft Tool supports a feature called Allow Older Chunk Versions which detects scenarios like this and properly formats the output chunks to signal to Minecraft that the terrain needs to be updated.
For this reason alone, the Universal Minecraft Tool is the right tool for the job.
But there are other reasons too:
And so many more!
To begin, you'll need to tell to the UMT which world you're trying to convert.
Follow this guide to Open a Java World in the Universal Minecraft Tool
Click Bedrock to select it as the target output edition.
You'll notice a drop-down menu for selecting different target versions. This can be useful if you're trying to get more advanced with your world conversion, but for most cases you'll want to leave it on the latest version.
Click Next to continue.
This panel allows you to control certain technical aspects of how the conversion should run. Thankfully, for Java to Bedrock conversion you'll usually want to leave these at their default values.
Two very important settings you'll likely want to keep enabled are the Skip Partially-Generated Chunks and Allow Older Chunk Versions features. Both are crucial to ensuring you don't have any holes or empty spots in your world (as we mentioned earlier).
If you are converting a flatland world created on or after 1.18 to a version before 1.18, then you'll want to set the Depth Fixer conversion option to Raise.
This will raise your world up by 64 blocks ensuring the bottom of your world is repositioned from Y:-64 to Y:0.
It's the big moment!
Click Start Conversion to begin.
The UMT will now scan the input world and perform all the necessary conversion steps to create a super-accurate clone of your world for Bedrock edition.
The next step is to pick a spot to save the output world.
Click Save World to bring up the save window.
The UMT will default to the install location of your Windows 10 edition worlds. You will need Minecraft Windows 10 edition installed in order to transfer the world in the next step with Realms.
At the time of writing this guide, Minecraft Windows 10 edition is included with every Xbox Game Pass subscription. That may be an option for those that don't wish to outright buy Minecraft again on Windows 10.
Enter a name for the world, and click Save.
You'll need a Realms Plus subscription to move your world from Minecraft Windows 10 edition to your Xbox console.
The free trial of Realms Plus will work, thankfully!
Plus, having a Realms server is super handy, or you can always cancel your subscription if you choose not to continue.
Click the Realms Plus banner near the top of the main menu.
Start a free trial of Realms Plus.
You should see your Realms server activated where the banner used to be.
Click Edit on your Realms server.
Click Edit World in the Ready to Play section.
On the right settings panel, scroll all the way down and choose Upload World.
Choose the world we just converted earlier.
Head on over to Minecraft on your Xbox console.
Make sure you are signed into the same account you purchased Realms with!
Head back into the same page where you uploaded the world, except this time we'll download it.
On the right settings panel, scroll all the way down and choose Download World.
Congratulations! You've successfully converted and transferred the world to your Xbox console!
Let the Universal Minecraft Tool simplify your life. Accomplish your tasks now.