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How To Lock Your Minecraft Chests With One Simple Command!

Hey everybody, it’s UnderMyCap and welcome back to another video! Today I’m going to be showing you how to make a locked chest in Minecraft Java Edition. This doesn’t use any mods or data packs — only one single command, which is super cool. If you’d prefer to watch the video version, you can check it out here: How To Lock Your Minecraft Chests With One Simple Command!

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What Does a Locked Chest Look Like?

To give you an idea of what we’re working towards, imagine a regular looking chest that when you click on it, you simply cannot open it — it says “The chest is locked.” The really cool thing about this is that it works in both creative and survival mode. In survival, you actually have to have a specially named key in your hand in order to open the chest. It sounds complicated, but I promise you it comes down to just one single command!

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Before You Get Started

First of all, you’ll want to go into creative mode and make sure that cheats are enabled on your world. If you don’t have cheats enabled automatically from setting it up, simply open the pause menu, click “Open to LAN,” select “Allow Cheats,” and then hit “Start LAN World.” Once cheats are enabled, you’re ready to go!

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Step 1: Place Down a Regular Chest

Place down a regular chest — at this point it’s completely normal with nothing different about it. The next step is entering a special command, and there’s one very important thing to keep in mind: when you run this command, your character must be looking directly at the chest block. This is crucial, so make sure your crosshair is aimed right at the chest before opening the command line.

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Step 2: Enter the Lock Command

With your character staring at the chest, open the command line. You’re going to type in the data merge block command and then use autofill to input the coordinates of the block you’re looking at. Those numbers that pop up are the coordinates of the chest, and this ensures you’re merging the data with the correct block. After the coordinates, you’ll add the lock tag by typing lock followed by a colon, two quotation marks, and curly brackets around it all. Inside those quotation marks, you can write whatever password or key name you like — you don’t need underscores, spaces work just fine, just make sure you keep the quotation marks in place. For example, I used “hello this is a key” as my lock name. Once you hit enter, it will say “Modified block data,” and just like that, the chest is locked!

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Step 3: Create Your Key

Now you’re probably wondering — how do I actually get the key? It’s super simple! All you need to do is place down an anvil, pick any item you’d like your key to be (I went with a water bottle for the most random choice!), and then rename that item in the anvil using the exact same name you used as the lock password. In this case, that means naming it “hello this is a key”. Make sure the name matches exactly, including any spaces. Once you have that item in your hand, you’ll be able to open the chest — it’s as easy as that!

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Does It Work on Other Containers?

I also tested this out on a shulker box using the same command, and it works there too! So you can lock shulker boxes in exactly the same way, which is really cool and opens up a lot of creative possibilities for your world.

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A Few Important Things to Keep in Mind

There are a couple of limitations worth knowing about. If the locked chest is broken, it will drop all of its items and the lock will no longer apply — meaning any player who breaks the block will be able to access everything inside. This method works best in worlds set to adventure mode, where players cannot break blocks freely, which would prevent anyone from bypassing the lock. It’s still a fantastic feature for the right use cases though!

Unfortunately, this method is only available on Minecraft Java Edition and is not currently possible on Bedrock Edition. I’m sorry to anyone who was hoping it would work there — hopefully that changes in a future update!

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Final Thoughts

I think this is such a fun and creative feature that’s incredibly easy to set up with just one command. Whether you’re building a role-playing world, an adventure map, or just want to add a little extra security to your chests, this is a great trick to have in your toolbox. I hope you found this helpful, and thank you so much for reading! I can’t wait to see you in the next one!

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