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NBT Autocomplete Mod for Minecraft 26.3

Adds suggestions for NBT tags in commands

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Updated
Updated 01.10.2026
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About

NBT Autocomplete is a client-side mod adding suggestions for NBT tags in commands.

When typing NBT tag of entity, block or item it shows you list of available tags and their types.

NBT Autocomplete — screenshot 4

Examples

NBT Autocomplete — screenshot 5
NBT Autocomplete — screenshot 6
NBT Autocomplete — screenshot 7
NBT Autocomplete — screenshot 8

How to install NBT Autocomplete

With Millida Launcher

  1. Install Millida Launcher

    The launcher is free: download it at millida.net/launcher and sign in with any nickname.

  2. Click “Install” on this page

    The launcher opens and installs the mod for Minecraft 1.21.11–26.3 on Fabric or NeoForge automatically, together with its dependencies: Fabric API.

  3. Launch the game

    A profile with it appears in the launcher: click “Play”.

Manually

  1. Install Fabric or NeoForge

    The loader must match the game version of the mod file, for example Minecraft 26.3. After installing it, a separate profile appears in your launcher.

  2. Download the file for your version

    In the version list above, pick the file NBTac-FABRIC-26.3-2.1.jar (274 KB) for your game version and loader.

  3. Put it in the mods folder

    The folder is inside .minecraft (Windows: %appdata%\.minecraft\mods). If it does not exist, create it. Required dependencies go there too: Fabric API.

  4. Launch the loader profile

    Open “Mods” in the main menu: NBT Autocomplete should be in the list.

NBT Autocomplete works on the player’s side only: there is no need to install it on a server.

Versions

With dependencies

MinecraftLoaderFileDateActions
26.3Fabric26.3274 KB 1
26.3NeoForge26.3267 KB
26.2Fabric26.2276 KB 1
26.2NeoForge26.2269 KB
26.1.2Fabric26.1.2276 KB
26.1.2NeoForge26.1.2269 KB
1.21.11Fabric1.21.11275 KB 3
1.21.11NeoForge1.21.11267 KB

What it needs to run

FAQ

Which Minecraft versions does NBT Autocomplete work on?

There are files for 26.3, 26.2, 26.1.2, 26.1.1, 26.1, 1.21.11. The newest is 26.3.

Is NBT Autocomplete for Forge or Fabric?

There are files for Fabric: 1.21.11–26.3 and for NeoForge: 1.21.11–26.3. There are no files for Forge: a mod for another loader will not start.

What does NBT Autocomplete need to work?

Required: Fabric API. Without it the mod will not start: dependencies go into the same mods folder. Optional: Mod Menu.

Do I need to install NBT Autocomplete on a server?

No. NBT Autocomplete works on the player’s side only: there is no need to install it on a server.

Where can I download NBT Autocomplete safely?

On this page: the file NBTac-FABRIC-26.3-2.1.jar (274 KB) is stored on Millida’s server, with no link shorteners. SHA-1 checksum: ebff83a1448232bad439c3303d7e2be3bd35a73b.

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Author: mt1006License: LGPL-3.0-onlySource code

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