
What is this mod?
Its a very simple 2 hour mod to enable nbt creation in 1.21.1
It is mainly intended for just importing and exporting nbt into and from minecraft. The main creational work is intended to happen fully outside minecraft with a code editor or MCStacker or so.
How do I use it?
You need farbic version 1.21.1 and fabric-api 1.21.1.
Once installed, you will have the following chat commands at your disposal
.nbt [show]where show is optional. This will show you the nbt of the item you are currently holding..nbt copywhich copies the nbt of the item you are holding to your clipboard.`.nbt paste', which will attempt to create an item from the nbt data in your clipboard. Note that because 1.21.1 changed a lot about how to format /give commands, it is supported, but with some annoying quirks. (Because trying to work around them would be a lot of work, and I really cannot be bothered).
If you want to use /give to create an item (for example, using MCStacker), the item you are giving yourself MUST be in a decorated pot, and the command MUST be in the following format
/give @p decorated_pot[container=[{slot:0,item:<Your NBT HERE>}]] 1
which is also the format used by MCStacker to put items into containers.
Below is a video example of how to use all these features.
If you have any questions or problems feel free to ask on my discord.
Showcase-Video
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.21.1
- 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: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
- Ships as simple-nbt-mod-1.21.1.jar — drop this file into the mods folder
- Download size: 16 KB
- Download link checked 3 Sept 2026 — working
These come from our own check of the pack file, not from the source page.
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