NBT Tooltips
Every item in Minecraft carries hidden data that defines its properties, enchantments, custom names, and more. This data, stored in the Named Binary Tag (NBT) format, is usually invisible to players. NBT Tooltips changes that by displaying the full NBT structure right inside the item tooltip whenever you enable advanced tooltips. Whether you are a map maker, a modpack developer, or just a curious player, this add-on turns the game’s debug screen into a powerful inspection tool without ever leaving your inventory.
What Exactly Does NBT Tooltips Do?
At its core, NBT Tooltips is a lightweight utility that hooks into Minecraft’s existing advanced tooltip system. By default, pressing F3+H toggles advanced tooltips, which show item IDs and durability numbers. With this add-on active, that same toggle also reveals the raw NBT data of any item you hover over. You will see tags like Damage, Enchantments, display, and custom attributes laid out in a readable, hierarchical format directly in the tooltip box. This mod displays the full NBT of an item in its tooltips when advanced tooltips are enabled, useful for debugging, verifying custom item generation, or simply understanding what makes your gear tick.
Why Every Technical Player Needs NBT Tooltips for Minecraft
If you have ever tried to troubleshoot a broken command block contraption or wondered why a custom villager trade is not working, you know the frustration of invisible data. NBT Tooltips for Minecraft eliminates guesswork. Instead of using external editors or running /data get commands repeatedly, you can glance at the tooltip and instantly see the exact NBT structure. This is invaluable for datapack creators testing loot tables, server admins checking for corrupted items, and mod developers verifying that their custom items are spawning with the correct tags. It also helps regular players understand why two seemingly identical swords behave differently.
How to Install NBT Tooltips
Getting started with NBT Tooltips is straightforward, but the exact steps depend on the mod loader you use. The add-on is available for both Fabric and Forge, covering a wide range of Minecraft versions from 1.19 to the latest 1.20 releases. Here is a quick guide on how to install it manually:
- Fabric: Make sure you have Fabric Loader and Fabric API installed. Then download NBT Tooltips and place the JAR file into your
modsfolder. - Forge: Install Forge for your chosen Minecraft version, then download the Forge variant of NBT Tooltips and drop it into the
modsdirectory.
After installation, launch the game and press F3+H to enable advanced tooltips. Hover over any item in your inventory and you will immediately see the NBT data appear. If you prefer a hassle-free setup, the foxygame.net launcher offers a one-click install for NBT Tooltips, automatically matching the correct version to your modded instance without any manual file management. This makes it especially convenient for players who switch between multiple modpacks and want to keep their debugging tools always up to date.
Supported Minecraft Versions and Mod Loaders
NBT Tooltips is actively maintained to support the most popular Minecraft releases. You can find builds for Fabric on versions 1.19.4, 1.20.1, 1.20.2, 1.20.4, and the latest 1.21 snapshots. Forge versions are available for 1.19.4, 1.20.1, and 1.20.4, with backports occasionally appearing for older modpacks. The add-on is also compatible with Quilt, which shares Fabric’s modding ecosystem. Because it only modifies the tooltip rendering, it rarely conflicts with other mods, making it a safe addition to even the heaviest modpacks.
How to Use NBT Tooltips Effectively
Once installed, using NBT Tooltips is as simple as toggling the advanced tooltip display. The default keybind is F3+H, but you can change it in the controls menu. When enabled, every item tooltip will expand to show its full NBT compound. The data is formatted with indentation, so nested tags are easy to read. For example, a custom potion will show its Potion tag, CustomPotionEffects list, and any CustomPotionColor value. This makes it much easier to spot missing brackets or incorrect tag types when writing commands or editing loot tables.
Debugging and Beyond
While the primary use case is debugging, NBT Tooltips also serves as an educational tool. New modders can learn how vanilla and modded items store data by simply looking at tooltips in-game. Server administrators can quickly verify that custom items given through command blocks contain the correct NBT without leaving the game. Even in survival gameplay, you can check if a villager’s trade item has the exact enchantments you expect before committing to a trade. The add-on turns the tooltip into a live NBT explorer, saving time and reducing errors.
Performance and Compatibility
Because NBT Tooltips only activates when advanced tooltips are toggled on, it has zero impact on performance during normal gameplay. The NBT parsing happens on the fly only for the item you are hovering over, so there is no background processing. It works seamlessly with popular mods like Just Enough Items (JEI), Roughly Enough Items (REI), and inventory sorting mods. The tooltip integration is clean and does not break any existing UI elements. If you ever need to disable it, simply turn off advanced tooltips with F3+H, and the tooltips revert to their standard behavior.
Where to Download NBT Tooltips
You can download NBT Tooltips from major mod hosting platforms. Always ensure you are getting the correct version for your mod loader and Minecraft release. The Fabric version is typically labeled with the Fabric API requirement, while the Forge version will specify the Forge version range. If you are using a custom launcher like foxygame.net, the add-on is available in its integrated catalog, allowing you to install NBT Tooltips with a single click and receive automatic updates whenever a new version is released. This eliminates the need to manually check for compatibility with each new Minecraft snapshot or modpack update.
Final Thoughts
NBT Tooltips is a must-have utility for anyone who works with Minecraft’s data-driven features. It is lightweight, unobtrusive, and incredibly useful for debugging, learning, and verifying item properties. Whether you are a seasoned modder or a player who just wants to peek under the hood, this add-on delivers exactly what it promises. Download NBT Tooltips today and turn your inventory into a powerful data inspector.