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XreatOptimizerMinecraft plugin for 1.21.11

XreatOptimizer is an advanced Minecraft performance plugin by XreatLabs, built to minimize RAM & CPU usage, stabilize TPS, and deliver smooth, lag-free gameplay for any server.

server onlynewest supported release 1.21.11Utility
Latest version
1.2.1
Minecraft
1.8 to 1.21.11
Java
Java 21+
Platforms
Spigot, Purpur, Paper
Licence
MIT
Downloads
588
Updated
5 mo ago
Available on
Modrinth
Space NodeOur hosting

Host XreatOptimizer servers

One click and XreatOptimizer is installed on a Paper or Purpur server built for it.

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

Minecraft versions

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

Other plugins
MinecraftThroughJavaEvidenceReleased
1.21.11Spigot, Purpur, Paper21+declared9 Dec 2025
1.21.10Paper, Spigot, Purpur21+declared7 Oct 2025
1.21.9Purpur, Spigot, Paper21+declared30 Sept 2025
1.21.8Purpur, Spigot, Paper21+declared17 Jul 2025
1.21.7Purpur, Spigot, Paper21+declared30 Jun 2025
1.21.6Purpur, Spigot, Paper21+declared17 Jun 2025
1.21.5Purpur, Spigot, Paper21+declared25 Mar 2025
1.21.4Paper, Spigot, Purpur21+declared3 Dec 2024
1.21.3Spigot, Purpur, Paper21+declared23 Oct 2024
1.21.2Paper, Spigot, Purpur21+declared22 Oct 2024
1.21.1Purpur, Spigot, Paper21+declared8 Aug 2024
1.21Purpur, Spigot, Paper21+declared13 Jun 2024
1.20.6Purpur, Spigot, Paper21+declared29 Apr 2024
1.20.5Purpur, Spigot, Paper21+declared23 Apr 2024
1.20.4Purpur, Spigot, Paper17+declared7 Dec 2023
1.20.3Purpur, Spigot, Paper17+declared4 Dec 2023
1.20.2Paper, Spigot, Purpur17+declared20 Sept 2023
1.20.1Spigot, Purpur, Paper17+declared12 Jun 2023
1.20Paper, Spigot, Purpur17+declared2 Jun 2023
1.19.4Purpur, Spigot, Paper17+declared14 Mar 2023
1.19.3Purpur, Spigot, Paper17+declared7 Dec 2022
1.19.2Purpur, Spigot, Paper17+declared5 Aug 2022
1.19.1Purpur, Spigot, Paper17+declared27 Jul 2022
1.19Purpur, Spigot, Paper17+declared7 Jun 2022
1.18.2Purpur, Spigot, Paper17+declared28 Feb 2022
1.18.1Spigot, Purpur, Paper17+declared10 Dec 2021
1.18Spigot, Purpur, Paper17+declared30 Nov 2021
1.17.1Paper, Spigot, Purpur16+declared6 Jul 2021
1.17Purpur, Spigot, Paper16+declared8 Jun 2021
1.16.5Purpur, Spigot, Paper8+declared14 Jan 2021
1.16.4Purpur, Spigot, Paper8+declared29 Oct 2020
1.16.3Purpur, Spigot, Paper8+declared10 Sept 2020
1.16.2Purpur, Spigot, Paper8+declared11 Aug 2020
1.16.1Spigot, Paper, Purpur8+declared24 Jun 2020
1.16Paper, Purpur, Spigot8+declared23 Jun 2020
1.15.2Spigot, Purpur, Paper8+declared17 Jan 2020
1.15.1Paper, Spigot, Purpur8+declared16 Dec 2019
1.15Purpur, Spigot, Paper8+declared9 Dec 2019
1.14.4Purpur, Spigot, Paper8+declared19 Jul 2019
1.14.3Purpur, Spigot, Paper8+declared24 Jun 2019

30 older versions not shown.

Download

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

For Minecraft 1.21.11

Choose the loader you use before downloading.

Most recently published release

1.2.1release27 May 2026

XreatOptimizer-1.2.1.jar · 0.3 MB · for 1.21.11, 1.21.10, 1.21.9, 1.21.8, 1.21.7 +7 more · Paper, Purpur, Spigot

Choose file on publisher ↗
cb3ac765e07d…
Older versions2

Frequently asked

Does XreatOptimizer work on Minecraft 1.21.11?

Yes. 1.21.11 is the newest Minecraft version XreatOptimizer 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 XreatOptimizer 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.

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

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

Which platform or loader does XreatOptimizer support?

Spigot, Purpur, Paper. 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 XreatOptimizer?

Among the supported Minecraft releases above, the highest recorded requirement is Java 21 or newer. Use the requirement for the exact Minecraft version you run; previews and snapshots may differ.

What licence is XreatOptimizer 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 XreatOptimizer?

Choose the release variant for your server platform. Paper, Spigot, Purpur and Bukkit files go in the server's plugins folder; Fabric, Forge, NeoForge and Quilt files go in the mods folder. Restart after installing and check that the Minecraft version matches your server.

Where do I download XreatOptimizer 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. When available, recorded download links go to the source for that release; verify the publisher, filename and any available 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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Details from Modrinth, where the author last updated it on 27 May 2026. We do not host files or republish descriptions. Available download links point to the author’s own release.

Not indexed yet. Score 50 against a threshold of 55. The page still exists and is still linked; it simply carries noindex until we hold more.

Is this information wrong or missing something? .