NBT Viewer
by Hohigamer
NBT Viewer shows the full SNBT data of a hovered item in its tooltip and the key data of a targeted entity on the player HUD, without commands or external tools.
What it does
Hovering over an item displays its complete SNBT data directly in the tooltip. Pressing N toggles a display of entity NBT for the entity being looked at, and Shift + L locks the target so the data keeps showing after the player looks away. Shift + O opens a clean, scrollable interface that makes large, complex NBT structures easier to read. The mod is aimed at modders, pack makers and advanced players who need to inspect or debug data quickly.
Safety limits keep oversized tooltips from flooding the screen, and the highlight colors can be set in HEX format RRGGBB. Entity data appears on the HUD alongside item tooltips. The mod is client-side only, so a server does not need it and players can use it in single-player worlds or on any server.
It requires Cloth Config API and Fabric API, and runs on Fabric and NeoForge. Files cover 1.21.1, 1.21.4, 1.21.6, 1.21.10, 1.21.11 and 26.2, with 2.1.0 as the latest build for 26.2. The code is released under the MIT License and is not open source. Its issue tracker is public.
Key features
Item NBT tooltips
Hovering over an item shows its full SNBT data in the tooltip, so its contents can be read in place.
Entity NBT toggle
Pressing N switches on the NBT display for the entity under the crosshair.
Locking a target
Shift + L fixes the current entity, so its data stays visible after the player looks elsewhere.
Scrollable inspector
Shift + O opens a clean interface where large NBT structures can be scrolled and read comfortably.
Configurable colors
Highlight colors are set in HEX format RRGGBB, and oversized tooltips are capped by built-in limits.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 2
How it compares
NBT Viewer runs on Fabric and NeoForge and is client-side only, with files for 1.21.1 – 26.2 and the MIT License without open source. Nbt Editor Port is Fabric only, covers 1.21.10 – 26.3, is client required with an optional server, and is open source under the MIT License. Component Viewer is open source under the MIT License and supports Fabric, NeoForge and Quilt for 1.20.5 – 26.3, while Item command viewer is Fabric only and built for 1.21.11.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| NBT Viewer | Fabric and NeoForge | 1.21.1 – 26.2 | Client-side only | 2026-09-24 |
| Nbt Editor Port | Fabric | 1.21.10 – 26.3 | Client required, server optional | 2026-10-09 |
| Component Viewer | Fabric, NeoForge and Quilt | 1.20.5 – 26.3 | Client-side only | 2026-09-16 |
| Item command viewer | Fabric | 1.21.11 | Client-side only | 2026-08-22 |
Questions
Does NBT Viewer need Fabric API?
Does a server need NBT Viewer?
Which versions does NBT Viewer support?
Can the highlight colors be changed?
In the catalog
NBT Viewer is one of 29,952 Game mechanics mods on ModsFinder, and one of 19,630 Game mechanics mods for Fabric. 13,894 mods support Minecraft 26.2.
Similar mods
What the author says
NBTviewer is a lightweight client-side NeoForge mod that displays NBT (SNBT) data directly in-game. It is designed for modders, pack makers, and advanced players who want to inspect, debug, and understand data instantly — without commands or external tools.
Official listing
- Modrinth page
- modrinth.com/mod/nbt-viewer-utility
- Owner
- Hohigamer
- Published
- 2026-01-07
- Updated on Modrinth
- 2026-09-24
- Facts verified
- 2026-10-15