- Loaders
- Fabric
- Downloads on Modrinth
- 484
- Followers on Modrinth
- 1
- versions
- 5
- Updated
- September 27, 2026Sep 27
- Published
- in 2026
At a glance
Runs on Fabric
For Minecraft 1.21.11–26.3
Client only — no need to install it on the server
Latest version — 0.1.2 from September 27, 2026
License LGPL-3.0-only — free
Where it's neededGame versions1.21.11–26.3
In gamerequiredOn servernot needed
Install in the game only; not needed on the server
Display the byte size of an item's NBT data. Packed size displays how large the serialized NBT data is after Minecraft's compression. Raw size displays how large the NBT data is without any processing.
FAQ
How to install NBTSize?
Install Fabric for your Minecraft version, download NBTSize for the same version and loader, put the file into the mods folder and launch the game with the loader profile.
Which Minecraft versions does NBTSize support?
NBTSize has builds for Minecraft 1.21.11–26.3.
Is NBTSize needed on the server?
Client only — no need to install it on the server
License and source
GNU Lesser General Public License v3.0 onlyfree to use and share; changes to the mod itself must be published under the same license
