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LagXpert FreeMinecraft plugin for 1.21.11

Modular lag management for every server.

server onlynewest supported 1.21.11UtilityMobsGame MechanicsOptimization
Latest version
2.6.1
Minecraft
1.16.5 to 1.21.11
Java
Java 21+
Loaders
Bukkit, Spigot, Purpur, Paper and 1 more
Licence
LicenseRef-All-Rights-Reserved
Downloads
1.2k
Updated
5 mo ago
Available on
Modrinth
Space NodePartner

Host LagXpert Free servers

One click and LagXpert Free 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 LagXpert Free declares support for, newest first, with the Java runtime that version needs.

Other plugins
MinecraftThroughJavaEvidenceReleased
1.21.11Bukkit, Spigot, Purpur, Paper, Folia21+declared9 Dec 2025
1.21.10Folia, Spigot, Purpur, Paper, Bukkit21+declared7 Oct 2025
1.21.9Folia, Spigot, Purpur, Paper, Bukkit21+declared30 Sept 2025
1.21.8Folia, Spigot, Purpur, Paper, Bukkit21+declared17 Jul 2025
1.21.7Folia, Spigot, Purpur, Paper, Bukkit21+declared30 Jun 2025
1.21.6Folia, Spigot, Purpur, Paper, Bukkit21+declared17 Jun 2025
1.21.5Bukkit, Spigot, Purpur, Paper, Folia21+declared25 Mar 2025
1.21.4Bukkit, Spigot, Purpur, Paper, Folia21+declared3 Dec 2024
1.21.3Folia, Spigot, Purpur, Paper, Bukkit21+declared23 Oct 2024
1.21.2Folia, Spigot, Purpur, Paper, Bukkit21+declared22 Oct 2024
1.21.1Folia, Spigot, Purpur, Paper, Bukkit21+declared8 Aug 2024
1.21Folia, Spigot, Purpur, Paper, Bukkit21+declared13 Jun 2024
1.20.6Folia, Spigot, Purpur, Paper, Bukkit21+declared29 Apr 2024
1.20.5Folia, Spigot, Purpur, Paper, Bukkit21+declared23 Apr 2024
1.20.4Bukkit, Folia, Paper, Purpur, Spigot17+declared7 Dec 2023
1.20.3Bukkit, Spigot, Purpur, Paper, Folia17+declared4 Dec 2023
1.20.2Folia, Spigot, Purpur, Paper, Bukkit17+declared20 Sept 2023
1.20.1Folia, Spigot, Purpur, Paper, Bukkit17+declared12 Jun 2023
1.20Folia, Spigot, Purpur, Paper, Bukkit17+declared2 Jun 2023
1.19.4Folia, Spigot, Purpur, Paper, Bukkit17+declared14 Mar 2023
1.19.3Folia, Spigot, Purpur, Paper, Bukkit17+declared7 Dec 2022
1.19.2Folia, Spigot, Purpur, Paper, Bukkit17+declared5 Aug 2022
1.19.1Purpur, Spigot, Paper, Folia, Bukkit17+declared27 Jul 2022
1.19Bukkit, Spigot, Purpur, Paper, Folia17+declared7 Jun 2022
1.18.2Folia, Spigot, Purpur, Paper, Bukkit17+declared28 Feb 2022
1.18.1Folia, Spigot, Purpur, Paper, Bukkit17+declared10 Dec 2021
1.18Folia, Spigot, Purpur, Paper, Bukkit17+declared30 Nov 2021
1.17.1Folia, Spigot, Purpur, Paper, Bukkit16+declared6 Jul 2021
1.17Folia, Spigot, Purpur, Paper, Bukkit16+declared8 Jun 2021
1.16.5Purpur, Folia, Bukkit, Paper, Spigot8+declared14 Jan 2021

Download

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

2.6.1release3 Mar 2026

LagXpert-2.6.1.jar · 0.3 MB · for 1.16.5, 1.17, 1.17.1, 1.18

Download latest
e13c257e959a…
Older versions12
  • 2.623 Dec 20251.16.5, 1.17, 1.17.1, 1.18, 1.18.10.3 MB228 downloadsd5010230b6e1…Get
  • 2.514 Oct 20251.16.5, 1.17, 1.17.1, 1.18, 1.18.10.3 MB229 downloads64e991edcd4a…Get
  • 2.47 Jul 20251.16.5, 1.17, 1.17.1, 1.18, 1.18.10.3 MB153 downloads6d38acb2dacc…Get
  • 2.34 Jul 20251.16.5, 1.17, 1.17.1, 1.18, 1.18.10.3 MB39 downloadsd0f92736b285…Get
  • 2.219 Jun 20251.16.5, 1.17, 1.17.1, 1.18, 1.18.10.3 MB34 downloads13ed811f5866…Get
  • 2.1.115 Jun 20251.16.5, 1.17, 1.17.1, 1.18, 1.18.10.2 MB35 downloads63d7aee3ac62…Get
  • 2.16 Jun 20251.16.5, 1.17, 1.17.1, 1.18, 1.18.10.2 MB50 downloadsd78083d2a6bd…Get
  • 2.05 Jun 20251.16.5, 1.17, 1.17.1, 1.18, 1.18.10.2 MB30 downloads39e87e0e46a3…Get
  • 1.322 May 20251.16.5, 1.17, 1.17.1, 1.18, 1.18.10.1 MB56 downloadsa5ee5fae76f4…Get
  • 1.214 May 20251.16.5, 1.17, 1.17.1, 1.18, 1.18.10.1 MB50 downloadsb963bfd01495…Get
  • 1.110 May 20251.16.5, 1.17, 1.17.1, 1.18, 1.18.10.1 MB36 downloads76fb79f1e1d7…Get
  • 1.0.05 May 20251.16.5, 1.17, 1.17.1, 1.18, 1.18.10.1 MB45 downloads4c39dbbf2fef…Get

Frequently asked

Does LagXpert Free work on Minecraft 1.21.11?

Yes. 1.21.11 is the newest Minecraft version LagXpert Free 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 LagXpert Free support?

Everything the author has declared, from 1.16.5 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 LagXpert Free on the client or the server?

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

Which server software does LagXpert Free need?

Bukkit, Spigot, Purpur, Paper, Folia. 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 LagXpert Free?

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 LagXpert Free under?

LicenseRef-All-Rights-Reserved, 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 LagXpert Free?

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 LagXpert Free 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? .