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DuplicationlessMinecraft mod for 1.21.11

A lightweight Minecraft library that simplifies JSON configs, block data storage, and entity tracking across chunks and dimensions.

newest supported 1.21.11Library Api
Latest version
duplicationless-1.21.1-1.2.0
Minecraft
1.8 to 1.21.11
Java
Java 21+
Loaders
NeoForge, Forge
Licence
not stated
Downloads
2.6M
Updated
1 mo ago
Available on
CurseForge

Minecraft versions

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

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.11NeoForge, Forge21+declared9 Dec 2025
1.21.1Forge, NeoForge21+declared8 Aug 2024
1.20.1NeoForge, Forge17+declared12 Jun 2023
1.19.2Forge, NeoForge17+declared5 Aug 2022
1.18.2NeoForge, Forge17+declared28 Feb 2022
1.16.5Forge, NeoForge8+declared14 Jan 2021
1.8NeoForge, Forge8+declared2 Sept 2014

Download

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

All 39 releases
duplicationless-1.21.1-1.2.0release21 May 2026

duplicationless-1.21.1-1.2.0.jar · 0.2 MB · for 1.21.1

Download latest
8ba9b766b1f0…
Older versions24
  • duplicationless-1.21.11-1.2.021 May 20261.21.110.2 MB2 downloadsfaf4c1fedb6d…Get
  • duplicationless-1.20.1-1.2.021 May 20261.20.10.9 MB2314918e1222…Get
  • duplicationless-1.16.5-1.2.021 May 20261.16.50.9 MBdb89a7c77f6f…Get
  • duplicationless-1.20.1-1.1.628 Apr 20261.20.10.9 MBd577ebb112bf…Get
  • duplicationless-1.16.5-1.1.628 Apr 20261.16.50.9 MB64a18f4f11b2…Get
  • duplicationless-1.21.11-1.1.628 Apr 20261.21.110.2 MB6c1cb9774f15…Get
  • duplicationless-1.21.1-1.1.628 Apr 20261.21.10.2 MBce8412af8c79…Get
  • duplicationless-1.20.1-1.1.519 Jan 20261.20.10.8 MB22.1k downloads7d14e8fcdffa…Get
  • duplicationless-1.16.5-1.1.519 Jan 20261.16.50.8 MB862efc6209e0…Get
  • duplicationless-1.21.1-1.1.519 Jan 20261.21.10.1 MB6a631b0210b8…Get
  • duplicationless-1.21.11-1.1.519 Jan 20261.21.110.1 MB3933eb2e8080…Get
  • duplicationless-1.19.2-1.1.411 Jan 20261.19.20.8 MB207 downloads6b86c86997a4…Get
  • duplicationless-1.21.1-1.1.411 Jan 20261.21.10.1 MBf55517af5d32…Get
  • duplicationless-1.20.1-1.1.411 Jan 20261.20.10.8 MB554969432079…Get
  • duplicationless-1.18.2-1.1.411 Jan 20261.18.20.8 MB890810fc2531…Get
  • duplicationless-1.16.5-1.1.411 Jan 20261.16.50.8 MBa9c0ba2a6ba5…Get
  • duplicationless-1.18.2-1.1.323 Dec 20251.18.20.8 MB1.0k downloads02472a81c4fd…Get
  • duplicationless-1.20.1-1.1.323 Dec 20251.20.10.8 MB786156c26b15…Get
  • duplicationless-1.19.2-1.1.323 Dec 20251.19.20.8 MB8d920131a7fd…Get
  • duplicationless-1.16.5-1.1.323 Dec 20251.16.50.8 MBfecd4a74d37c…Get
  • duplicationless-1.21.1-1.1.323 Dec 20251.21.10.1 MBb09a2efd4df0…Get
  • duplicationless-1.21.1-1.1.223 Dec 20251.21.10.1 MB8 downloads6173a06e4c21…Get
  • duplicationless-1.18.2-1.1.223 Dec 20251.18.20.8 MB6 downloads441c00a99a01…Get
  • duplicationless-1.20.1-1.1.223 Dec 20251.20.10.8 MB31664d97eabb…Get

Frequently asked

Does Duplicationless work on Minecraft 1.21.11?

Yes. 1.21.11 is the newest Minecraft version Duplicationless 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 Duplicationless support?

Everything the author has declared, from 1.8 up to 1.21.11. The full list is in the table above, with the Java runtime each version needs next to it.

Which platform or loader does Duplicationless support?

NeoForge, Forge. 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 Duplicationless?

On the newest Minecraft version it supports, Java 21 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.

How do I install Duplicationless?

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 Duplicationless safely?

Start with the author's page on CurseForge, 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.

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Last checked 22 d ago against CurseForge. 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? .