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data pack

ItemIO

Library for interacting with items inside custom and vanilla containers and between datapacks.

server onlynewest supported 26.1TechnologyLibrary
Latest version
no release indexed
Minecraft
1.19 to 26.1
Java
Java 25+
Loader
Data pack
Licence
MIT
Downloads
1.5k
Updated
2 mo ago
Available on
Modrinth

Minecraft versions

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

Other data packs
MinecraftThroughJavaEvidenceReleased
26.1Data pack25+declared24 Mar 2026
1.21.11Data pack21+declared9 Dec 2025
1.21.6Data pack21+declared17 Jun 2025
1.21.4Data pack21+declared3 Dec 2024
1.21.3Data pack21+declared23 Oct 2024
1.21.2Data pack21+declared22 Oct 2024
1.21.1Data pack21+declared8 Aug 2024
1.21Data pack21+declared13 Jun 2024
1.20.5Data pack21+declared23 Apr 2024
1.20.4Data pack17+declared7 Dec 2023
1.20.2Data pack17+declared20 Sept 2023
1.20.1Data pack17+declared12 Jun 2023
1.20Data pack17+declared2 Jun 2023
1.19.4Data pack17+declared14 Mar 2023
1.19.3Data pack17+declared7 Dec 2022
1.19.2Data pack17+declared5 Aug 2022
1.19.1Data pack17+declared27 Jul 2022
1.19Data pack17+declared7 Jun 2022

Frequently asked

Does ItemIO work on Minecraft 26.1?

Yes. 26.1 is the newest Minecraft version ItemIO 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 ItemIO support?

Everything the author has declared, from 1.19 up to 26.1. The full list is in the table above, with the Java runtime each version needs next to it.

Do I need to install ItemIO on the client or the server?

The server only. Players join with an ordinary Minecraft client and install nothing.

Which loader does ItemIO need?

Data pack. A build for one loader will not load on another, so this is the first thing to check before the Minecraft version.

Which Java version do I need for ItemIO?

Java 25 or newer, because that is what the newest Minecraft release it supports requires. The requirement comes from the game rather than from the data pack itself.

What licence is ItemIO 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 ItemIO?

Install the matching loader first, then put the downloaded file in your mods folder and start the game. The loader, the data pack 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 ItemIO safely?

From the author's own page on Modrinth, which is where the data here is synced from. MCReference never mirrors, re-hosts or repackages a file: every download button points at the original source, so you get exactly what the author published.

Works on the same versions

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

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Last checked 1 d ago against Modrinth. We do not host files and we do not republish descriptions; every download link points at the author’s own release.