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data pack

Clear LagMinecraft data pack for 1.21.1

This anti lag data pack allows you to improve your vanilla servers performance a lot, while having many configuration options.

server onlynewest supported release 1.21.1UtilityGame MechanicsOptimizationManagement
Latest version
2.9.4
Minecraft
1.16-pre1 to 1.21.1
Licence
LicenseRef-All-Rights-Reserved
Downloads
19.4k
Updated
2 y ago
Available on
Modrinth
Space NodeOur hosting

Host Clear Lag servers

Deploy a server with Clear Lag already added to the world, on hardware built for it.

  • 1.21.1
  • Data pack
  • One click install
  • Version matched
  • Automatic backups
  • 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 Clear Lag declares support for, newest first, with the Java runtime that version needs.

Other data packs
MinecraftThroughJavaEvidenceReleased
1.21.1Data pack21+declared8 Aug 2024
1.21.1-rc1Data pack21+declared7 Aug 2024
1.21Data pack21+declared13 Jun 2024
1.21-rc1Data pack21+declared10 Jun 2024
1.21-pre4Data pack21+declared7 Jun 2024
1.21-pre3Data pack21+declared5 Jun 2024
1.21-pre2Data pack21+declared31 May 2024
1.21-pre1Data pack21+declared29 May 2024
24w21bData pack21+declared22 May 2024
24w21aData pack21+declared22 May 2024
24w07aData pack17+declared14 Feb 2024
24w06aData pack17+declared7 Feb 2024
24w05bData pack17+declared1 Feb 2024
24w05aData pack17+declared31 Jan 2024
24w04aData pack17+declared24 Jan 2024
24w03bData pack17+declared18 Jan 2024
24w03aData pack17+declared17 Jan 2024
23w51bData pack17+declared18 Dec 2023
23w51aData pack17+declared18 Dec 2023
1.20.4Data pack17+declared7 Dec 2023
1.20.4-rc1Data pack17+declared6 Dec 2023
1.20.3Data pack17+declared4 Dec 2023
1.20.3-rc1Data pack17+declared30 Nov 2023
1.20.3-pre4Data pack17+declared28 Nov 2023
1.20.3-pre3Data pack17+declared27 Nov 2023
1.20.3-pre2Data pack17+declared22 Nov 2023
1.20.3-pre1Data pack17+declared20 Nov 2023
23w46aData pack17+declared16 Nov 2023
23w45aData pack17+declared8 Nov 2023
23w44aData pack17+declared1 Nov 2023
23w43bData pack17+declared26 Oct 2023
23w43aData pack17+declared25 Oct 2023
23w42aData pack17+declared18 Oct 2023
23w41aData pack17+declared11 Oct 2023
23w40aData pack17+declared4 Oct 2023
1.20.2Data pack17+declared20 Sept 2023
1.20.2-rc2Data pack17+declared18 Sept 2023
1.20.2-rc1Data pack17+declared15 Sept 2023
1.20.2-pre4Data pack17+declared13 Sept 2023
1.20.2-pre3Data pack17+declared12 Sept 2023

182 older versions not shown.

Download

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

Most recently published release

2.9.4release1 Aug 2024

clearlag.zip · 9 KB · for 1.21.1, 1.21.1-rc1, 1.21, 1.21-rc1, 1.21-pre4 +5 more

Download this release
d29772ccb758…
Older versions2
  • 2.9.33 Mar 202424w07a, 24w06a, 24w05b, 24w05a, 24w04a +207 more9 KB6.7k downloadsc26c1be08850…Get
  • 2.9.28 Jan 202324w07a, 24w06a, 24w05b, 24w05a, 24w04a +207 more9 KB1.6k downloadsbaa65a25d585…Get

Frequently asked

Does Clear Lag work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version Clear Lag 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 Clear Lag support?

Everything the author has declared, from 1.16-pre1 up to 1.21.1. The full list is in the table above, with the Java runtime each version needs next to it.

Do I need to install Clear Lag on the client or the server?

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

What licence is Clear Lag 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 Clear Lag?

Data packs install per world: put the downloaded file in that world's datapacks folder and run /reload, or add it when creating the world. No loader is involved. On a server, the world folder lives next to the server jar.

Where do I download Clear Lag 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.

Spawn AnimationsHostile mobs dig out of the ground or poof into existence when they spawn!Dynamic LightsSupported entities and items such as torches, lanterns, or enchanted gear emit light! Server-side!More MobsHumanoid mobs get new variants through over 85 custom player heads or unused vanilla mobs! No Resource Pack needed!NoRollbackRemove (annoying) rollbacksTree Vein MinerTree Vein Miner Removes entire trees (logs and leaves) when crouchingX Ray (no cheats)Find ores in mines faster and easier.

Details from Modrinth, where the author last updated it on 1 Aug 2024. We do not host files or republish descriptions. Available download links point to the author’s own release.

Is this information wrong or missing something? .