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Dupe UtilityMinecraft plugin for 1.21.11

The best dupe plugin you`ll find.

server onlynewest supported 1.21.11UtilityEconomyGame MechanicsManagement
Latest version
3.0
Minecraft
1.21 to 1.21.11
Java
Java 21+
Loaders
Bukkit, Spigot, Purpur, Paper
Licence
BSD-3-Clause
Downloads
2.2k
Updated
6 mo ago
Available on
Modrinth
Space NodePartner

Host Dupe Utility servers

One click and Dupe Utility is installed with the right loader, on hardware built for it.

  • 1.21.11
  • Bukkit
  • Spigot
  • Purpur
  • Paper
  • One click plugin install
  • Paper and Purpur ready
  • Automatic updates
  • NVMe SSD
Deploy a serverFrom €0.90 per GB

Screenshots

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

Minecraft versions

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

Other plugins
MinecraftThroughJavaEvidenceReleased
1.21.11Bukkit, Spigot, Purpur, Paper21+declared9 Dec 2025
1.21.10Paper, Spigot, Purpur, Bukkit21+declared7 Oct 2025
1.21.9Paper, Spigot, Purpur, Bukkit21+declared30 Sept 2025
1.21.8Paper, Spigot, Purpur, Bukkit21+declared17 Jul 2025
1.21.7Paper, Spigot, Purpur, Bukkit21+declared30 Jun 2025
1.21.6Bukkit, Paper, Purpur, Spigot21+declared17 Jun 2025
1.21.5Bukkit, Spigot, Purpur, Paper21+declared25 Mar 2025
1.21.4Paper, Spigot, Purpur, Bukkit21+declared3 Dec 2024
1.21.3Bukkit, Spigot, Purpur, Paper21+declared23 Oct 2024
1.21.2Bukkit, Spigot, Purpur, Paper21+declared22 Oct 2024
1.21.1Paper, Spigot, Purpur, Bukkit21+declared8 Aug 2024
1.21Spigot, Paper, Purpur, Bukkit21+declared13 Jun 2024

Download

From Dupe Utility’s own host. Nothing is re-hosted here.

3.0release20 Jan 2026

DupeUtility-3.0.jar · 0.1 MB · for 1.21, 1.21.1, 1.21.2, 1.21.3

Download latest
f804ae334563…
Older versions4
  • 3.0r130 Nov 20251.21, 1.21.1, 1.21.2, 1.21.3, 1.21.46.4 MB120 downloads0d494a7b7ca9…Get
  • 3.0.027 Nov 20251.21, 1.21.1, 1.21.2, 1.21.3, 1.21.46.4 MB86 downloads4fec7e706aff…Get
  • 2.112 Nov 20251.21, 1.21.1, 1.21.2, 1.21.3, 1.21.46.3 MB696 downloads5389b6658ee9…Get
  • 2.08 Nov 20251.21, 1.21.1, 1.21.2, 1.21.3, 1.21.46.3 MB53 downloads8ddce67bce9d…Get

Frequently asked

Does Dupe Utility work on Minecraft 1.21.11?

Yes. 1.21.11 is the newest Minecraft version Dupe Utility 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 Dupe Utility support?

Everything the author has declared, from 1.21 up to 1.21.11. The full list is in the table above, with the Java runtime each version needs next to it.

Do I need to install Dupe Utility on the client or the server?

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

Which server software does Dupe Utility need?

Bukkit, Spigot, Purpur, Paper. A build for one server platform will not load on another, so this is the first thing to check before the Minecraft version.

Which Java version do I need for Dupe Utility?

Java 21 or newer, because that is what the newest Minecraft release it supports requires. The requirement comes from the game rather than from the plugin itself.

What licence is Dupe Utility under?

BSD-3-Clause, 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 Dupe Utility?

Download the file from the author's own release, drop it into your server's plugins folder, and restart the server. It generates its configuration on first start. Check the Minecraft version matches the one your server runs.

Where do I download Dupe Utility 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 6 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.

Is this information wrong or missing something? .