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ClientBlockMinecraft mod for 1.21.11

Filter and list Minecraft clients/brands at server side, block or allow them. Fabric Mod.

server onlynewest supported 1.21.11Management
Latest version
0.1.6
Minecraft
1.21 to 1.21.11
Java
Java 21+
Loader
Fabric
Licence
MIT
Downloads
1.2k
Updated
8 mo ago
Available on
Modrinth
Space NodePartner

Host ClientBlock servers

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

  • 1.21.11
  • Fabric
  • One click mod install
  • Loader matched for you
  • Ryzen CPUs
  • NVMe SSD
Deploy a serverFrom €0.90 per GB

Minecraft versions

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

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.11Fabric21+declared9 Dec 2025
1.21.10Fabric21+declared7 Oct 2025
1.21.9Fabric21+declared30 Sept 2025
1.21.8Fabric21+declared17 Jul 2025
1.21.7Fabric21+declared30 Jun 2025
1.21.6Fabric21+declared17 Jun 2025
1.21.5Fabric21+declared25 Mar 2025
1.21.4Fabric21+declared3 Dec 2024
1.21.3Fabric21+declared23 Oct 2024
1.21.2Fabric21+declared22 Oct 2024
1.21.1Fabric21+declared8 Aug 2024
1.21Fabric21+declared13 Jun 2024

Download

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

0.1.6release14 Dec 2025

ClientBlock-0.1.6.jar · 0.0 MB · for 1.21, 1.21.1, 1.21.2, 1.21.3

Download latest
65152b4652d1…
Older versions14
  • 0.1.519 Jun 20251.21, 1.21.1, 1.21.2, 1.21.3, 1.21.40.0 MB119 downloads5d096444b279…Get
  • 0.1.411 Apr 20251.21, 1.21.1, 1.21.2, 1.21.3, 1.21.40.0 MB103 downloads8c8688304f37…Get
  • 0.1.320 Mar 20251.21, 1.21.1, 1.21.2, 1.21.3, 1.21.40.0 MB76 downloads7cad3aa085d2…Get
  • 0.1.227 Dec 20241.21, 1.21.1, 1.21.2, 1.21.3, 1.21.40.0 MB115 downloads43a4df34d2eb…Get
  • 0.1.127 Dec 20241.21.1, 1.21.2, 1.21.3, 1.21.40.0 MB67 downloadse1dc6b7e13de…Get
  • 0.1.025 Dec 20241.21.1, 1.21.2, 1.21.3, 1.21.40.0 MB45 downloads31f8a2ad6b63…Get
  • 0.0.1720 Dec 20241.21.1, 1.21.2, 1.21.3, 1.21.40.0 MB53 downloads25e63fa4c691…Get
  • 0.0.1611 Dec 20241.21, 1.21.1, 1.21.2, 1.21.3, 1.21.40.0 MB64 downloads6f5f5a3dc8c5…Get
  • 0.0.159 Dec 20241.21, 1.21.1, 1.21.2, 1.21.3, 1.21.40.0 MB51 downloads0f37773f9b55…Get
  • 0.0.148 Dec 20241.21, 1.21.1, 1.21.2, 1.21.3, 1.21.40.1 MB59 downloadsbbbe160e1f7b…Get
  • 0.0.138 Dec 20241.21, 1.21.1, 1.21.2, 1.21.3, 1.21.40.1 MB61 downloadsb44afda9fe2a…Get
  • 0.0.123 Dec 20241.21.10.1 MB34 downloadsd7b8eb91b439…Get
  • 0.0.115 Oct 20241.21.10.1 MB39 downloads049dab9ae76c…Get
  • 0.0.105 Oct 20241.21.10.1 MB37 downloads11371872facd…Get

Frequently asked

Does ClientBlock work on Minecraft 1.21.11?

Yes. 1.21.11 is the newest Minecraft version ClientBlock 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 ClientBlock 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 ClientBlock on the client or the server?

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

Which loader does ClientBlock need?

Fabric. A build for one loader will not load on another, so this is the first thing to check before the Minecraft version.

Which Java version do I need for ClientBlock?

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 mod itself.

What licence is ClientBlock 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 ClientBlock?

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 ClientBlock 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.

Entity CullingUsing async path-tracing to hide Block-/Entities that are not visibleFerriteCoreMemory usage optimizationsImmediatelyFastSpeed up immediate mode rendering in MinecraftYetAnotherConfigLib (YACL)A builder-based configuration library for Minecraft!Xaero's MinimapDisplays a map of the nearby world terrain, players, mobs, entities in the corner of your screen. Lets you create waypoints which help you find the locations you've marked.[ETF] Entity Texture FeaturesEmissive, Random & Custom texture support for entities in resourcepacks just like Optifine but for Fabric

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? .