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NBT ViewerMinecraft mod for 26.2

NBT Viewer lets you inspect item NBT data at a glance by displaying it directly in tooltips, making debugging and mod development easier.

client onlynewest supported 26.2UtilityGame Mechanics
Latest version
mc1.21.1-2.0.0-neoforge
Minecraft
1.21.1 to 26.2
Java
Java 25+
Loaders
NeoForge, Fabric
Licence
MIT
Downloads
7.7k
Updated
7 d ago
Available on
Modrinth

Screenshots

Click a screenshot to open it. Screenshots are served from the author’s own host and belong to them.

Minecraft versions

Every version NBT Viewer declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
26.2NeoForge, Fabric25+declared16 Jun 2026
1.21.11Fabric, NeoForge21+declared9 Dec 2025
1.21.10Fabric, NeoForge21+declared7 Oct 2025
1.21.6Fabric, NeoForge21+declared17 Jun 2025
1.21.4NeoForge, Fabric21+declared3 Dec 2024
1.21.1Fabric, NeoForge21+declared8 Aug 2024

Download

From NBT Viewer’s own host. Nothing is re-hosted here.

mc1.21.1-2.0.0-neoforgerelease21 Apr 2026

nbtviewer-2.0.0-mc1.21.1-neoforge.jar · 3.6 MB · for 1.21.1

Download latest
c0f7157af496…
Older versions15
  • mc1.21.4-2.0.0-fabric16 Apr 20261.21.43.6 MB102 downloadseb26ce435818…Get
  • mc1.21.6-2.0.0-fabric16 Apr 20261.21.63.6 MB34 downloads832970e3c1e7…Get
  • mc1.21.10-2.0.0-fabric16 Apr 20261.21.103.6 MB90 downloads3ee7190379ed…Get
  • mc1.21.11-2.0.0-fabric16 Apr 20261.21.113.6 MB1.1k downloadsc01eb8c15cf7…Get
  • mc1.21.4-2.0.0-neoforge15 Apr 20261.21.43.6 MB15 downloads2939647b6dff…Get
  • mc1.21.6-2.0.0-neoforge15 Apr 20261.21.63.6 MB11 downloads6a78b65d5c93…Get
  • mc1.21.10-2.0.0-neoforge15 Apr 20261.21.103.6 MB14 downloadsb1a4b5a080ca…Get
  • mc1.21.11-2.0.0-neoforge15 Apr 20261.21.113.6 MB45 downloads8fde0e5b8676…Get
  • mc1.21.6-1.0.0-fabric19 Jan 20261.21.63.6 MB48 downloads759c23d7baaa…Get
  • mc1.21.11-1.0.0-fabric18 Jan 20261.21.113.6 MB909 downloads90ecce0229e6…Get
  • mc1.21.10-1.0.0-fabric9 Jan 20261.21.103.6 MB237 downloads8ee5e539464a…Get
  • mc1.21.11-1.0.0-neoforge9 Jan 20261.21.113.6 MB60 downloadsb2b0a089f575…Get
  • mc1.21.4-1.0.0-neoforge9 Jan 20261.21.43.6 MB37 downloads49c573f90764…Get
  • mc1.21.6-1.0.0-neoforge9 Jan 20261.21.63.6 MB32 downloadsb1b300b65f1e…Get
  • mc1.21.10-1.0.0-neoforge7 Jan 20261.21.103.6 MB45 downloadsd93fceaf6d6b…Get

Frequently asked

Does NBT Viewer work on Minecraft 26.2?

Yes. 26.2 is the newest Minecraft version NBT Viewer declares support for, and the claim comes from the author's own release metadata rather than from a compatibility list somebody maintains by hand.

Which Minecraft versions does NBT Viewer support?

Everything the author has declared, from 1.21.1 up to 26.2. The full list is in the table above, with the Java runtime each version needs next to it.

Do I need to install NBT Viewer on the client or the server?

The client only. There is nothing to install on the server side. That is the author's declared design, not a guarantee for every server: one running anti-cheat or missing a counterpart mod can still object.

Which platform or loader does NBT Viewer support?

NeoForge, Fabric. A build for one platform or loader will not necessarily load on another, so this is the first thing to check before the Minecraft version.

Which Java version do I need for NBT Viewer?

On the newest Minecraft version it supports, Java 25 or newer. The requirement comes from the Minecraft version you run rather than from the mod itself, so on an older supported Minecraft the answer is that version's Java, not this one.

What licence is NBT Viewer under?

MIT, as stated by the author on the platform we synced it from. Check the project's own page before redistributing or bundling it.

How do I install NBT Viewer?

Install the matching loader first, then put the downloaded file in your mods folder and start the game. The loader, the mod and Minecraft all have to be on the same version, which is the usual reason a mod does not appear in game.

Where do I download NBT Viewer safely?

Start with the author's page on Modrinth, which is where the data here is synced from. MCReference does not host or repackage files. The download link goes to the source recorded for that release; verify the publisher, filename and checksum before running it.

Works on the same versions

Ordered by how much of the recent Minecraft version coverage overlaps, not by popularity.

Armor HiderHide or adjust the transparency of armor, glint, and offhand items - with full multiplayer sync. No dependencies required.GeckoLibA 3D animation library for entities, blocks, items, armor, and more!Cloth Config API (Fabric/Forge/NeoForge)Config Screen API for MinecraftJourneyMapReal-time map used for mapping in-game or your browser as you explore.Architectury APIAn intermediary api aimed to ease developing multiplatform mods.Enchantment DescriptionsAdds in-game descriptions for enchantments to tooltips.

Details from Modrinth, where the author last updated it on 24 Sept 2026. We do not host files and we do not republish descriptions; every download link points at the author’s own release.

Is this information wrong or missing something? .