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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 release 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
10 mo ago
Available on
Modrinth
Space NodeOur hosting

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.

Most recently published release

0.1.6release14 Dec 2025

ClientBlock-0.1.6.jar · 22 KB · for 1.21.11, 1.21.10, 1.21.9, 1.21.8, 1.21.7 +7 more · Fabric

Download this release
65152b4652d1…
Older versions14
  • 0.1.519 Jun 20251.21.6, 1.21.5, 1.21.4, 1.21.3, 1.21.2 +2 more22 KB119 downloads5d096444b279…Get
  • 0.1.411 Apr 20251.21.5, 1.21.4, 1.21.3, 1.21.2, 1.21.1 +1 more22 KB103 downloads8c8688304f37…Get
  • 0.1.320 Mar 20251.21.4, 1.21.3, 1.21.2, 1.21.1, 1.2122 KB76 downloads7cad3aa085d2…Get
  • 0.1.227 Dec 20241.21.4, 1.21.3, 1.21.2, 1.21.1, 1.2122 KB115 downloads43a4df34d2eb…Get
  • 0.1.127 Dec 20241.21.4, 1.21.3, 1.21.2, 1.21.121 KB67 downloadse1dc6b7e13de…Get
  • 0.1.025 Dec 20241.21.4, 1.21.3, 1.21.2, 1.21.120 KB45 downloads31f8a2ad6b63…Get
  • 0.0.1720 Dec 20241.21.4, 1.21.3, 1.21.2, 1.21.120 KB53 downloads25e63fa4c691…Get
  • 0.0.1611 Dec 20241.21.4, 1.21.3, 1.21.2, 1.21.1, 1.2120 KB64 downloads6f5f5a3dc8c5…Get
  • 0.0.159 Dec 20241.21.4, 1.21.3, 1.21.2, 1.21.1, 1.2126 KB51 downloads0f37773f9b55…Get
  • 0.0.148 Dec 20241.21.4, 1.21.3, 1.21.2, 1.21.1, 1.2199 KB59 downloadsbbbe160e1f7b…Get
  • 0.0.138 Dec 20241.21.4, 1.21.3, 1.21.2, 1.21.1, 1.2199 KB61 downloadsb44afda9fe2a…Get
  • 0.0.123 Dec 20241.21.199 KB34 downloadsd7b8eb91b439…Get
  • 0.0.115 Oct 20241.21.194 KB39 downloads049dab9ae76c…Get
  • 0.0.105 Oct 20241.21.193 KB37 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 platform or loader does ClientBlock support?

Fabric. 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 ClientBlock?

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 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?

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.

Cloth Config API (Fabric/Forge/NeoForge)Config Screen API for MinecraftJourneyMapReal-time map used for mapping in-game or your browser as you explore.Architectury APIAn intermediary api aimed to ease developing multiplatform mods.Jade 🔍Shows information about what you are looking at. (Hwyla/WAILA fork for Minecraft 1.16+)Collective🎓 Collective is a shared library with common code for all of Serilum's mods.Xaero's MinimapDisplays 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.

Details from Modrinth, where the author last updated it on 14 Dec 2025. 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? .