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CB: Compressed BlocksMinecraft mod for 26.3

A Block and Item Compression mod for Minecraft. Compress your Blocks and Items to make more free space (up to 3.486.784.101 Blocks / Items in just one single Block!)

client and servernewest supported release 26.3TechnologyUtilityAdventureGame Mechanics
Latest version
3.1.0-26.3
Minecraft
1.15.2 to 26.3
Java
Java 25+
Loaders
NeoForge, Forge, Fabric
Licence
MIT
Downloads
283.8k
Updated
23 d ago
Available on
Modrinth
Space NodeOur hosting

Host CB: Compressed Blocks servers

One click and CB: Compressed Blocks is installed with the right loader, on hardware built for it.

  • 26.3
  • NeoForge
  • Forge
  • Fabric
  • One click mod install
  • Loader matched for you
  • Ryzen CPUs
  • 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 CB: Compressed Blocks declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
26.3NeoForge, Forge, Fabric25+declared15 Sept 2026
26.2Fabric, NeoForge, Forge25+declared16 Jun 2026
26.1.2Forge, NeoForge, Fabric25+declared9 Apr 2026
26.1.1Forge, NeoForge, Fabric25+declared1 Apr 2026
26.1Forge, NeoForge, Fabric25+declared24 Mar 2026
1.21.11Forge, NeoForge, Fabric21+declared9 Dec 2025
1.21.10Forge, NeoForge, Fabric21+declared7 Oct 2025
1.21.9Fabric, NeoForge, Forge21+declared30 Sept 2025
1.21.8NeoForge, Forge, Fabric21+declared17 Jul 2025
1.21.7Fabric, NeoForge, Forge21+declared30 Jun 2025
1.21.6Forge, NeoForge, Fabric21+declared17 Jun 2025
1.21.5Forge, NeoForge, Fabric21+declared25 Mar 2025
1.21.4Forge, NeoForge, Fabric21+declared3 Dec 2024
1.21.3Forge, NeoForge, Fabric21+declared23 Oct 2024
1.21.1Forge, NeoForge, Fabric21+declared8 Aug 2024
1.21Forge, NeoForge, Fabric21+declared13 Jun 2024
1.20.6Fabric, Forge, NeoForge21+declared29 Apr 2024
1.20.5NeoForge, Forge, Fabric21+declared23 Apr 2024
1.20.4Fabric, NeoForge, Forge17+declared7 Dec 2023
1.20.2Forge, NeoForge, Fabric17+declared20 Sept 2023
1.20.1Forge, NeoForge, Fabric17+declared12 Jun 2023
1.20Forge, NeoForge, Fabric17+declared2 Jun 2023
1.19.4Forge, NeoForge, Fabric17+declared14 Mar 2023
1.19.3Forge, NeoForge, Fabric17+declared7 Dec 2022
1.19.2Forge, NeoForge, Fabric17+declared5 Aug 2022
1.19.1NeoForge, Forge, Fabric17+declared27 Jul 2022
1.19NeoForge, Forge, Fabric17+declared7 Jun 2022
1.18.2Fabric, NeoForge, Forge17+declared28 Feb 2022
1.18.1Forge, NeoForge, Fabric17+declared10 Dec 2021
1.18Forge, NeoForge, Fabric17+declared30 Nov 2021
1.17.1Forge, NeoForge, Fabric16+declared6 Jul 2021
1.17Forge, NeoForge, Fabric16+declared8 Jun 2021
1.16.5Forge, NeoForge, Fabric8+declared14 Jan 2021
1.15.2Forge, Fabric, NeoForge8+declared17 Jan 2020

Download

From CB: Compressed Blocks’s own host. Nothing is re-hosted here.

Browse 32 indexed releases

Most recently published release

3.1.0-26.3release15 Oct 2026

compressedblocks-fabric-3.1.0-26.3.jar · 17.1 MB · for 26.3, 26.2, 26.1.2, 26.1.1, 26.1 · Fabric

Download this release
5fc33b6d3c20…
Older versions24
  • 3.1.0-1.21.1114 Oct 20261.21.1117.0 MB68789a531ddb…Get
  • 3.0.0-1.20.111 Oct 20261.20.115.9 MBc0307f52524b…Get
  • 3.0.0-1.20.211 Oct 20261.20.4, 1.20.215.9 MB68748c117995…Get
  • 3.0.0-1.21.18 Oct 20261.21.1, 1.2115.6 MBe81d8d5dd928…Get
  • 2.0.0-1.21.54 Oct 20261.21.5, 1.21.413.5 MB4911e7d4a3c1…Get
  • 2.0.0-1.21.101 Oct 20261.21.10, 1.21.9, 1.21.8, 1.21.7, 1.21.613.6 MBc3372e89d501…Get
  • 2.0.0-1.21.1129 Sept 20261.21.1113.6 MB23aab8086759…Get
  • 1.6.219 Aug 20251.20.2, 1.20.1, 1.2014.4 MB21.5k downloadse2cb6fa2e56e…Get
  • 1.8.3-1.21.410 Aug 20251.21.5, 1.21.4, 1.21.314.8 MB166 downloadsf0329dab0c42…Get
  • 1.8.2-1.21.428 Mar 20251.21.5, 1.21.413.6 MB172 downloads61752c413296…Get
  • 1.7.2-1.21.128 Mar 20251.21.1, 1.2114.8 MB402 downloads7d1302d35176…Get
  • 1.8.1-1.21.427 Mar 20251.21.414.1 MB76 downloadscf3ef110c77d…Get
  • 1.7.1-1.218 Feb 20251.21.1, 1.2114.1 MB4.3k downloads278a6b449a4e…Get
  • 1.8.0-1.21.43 Feb 20251.21.414.1 MB116 downloadsa9f40d9abeb3…Get
  • 1.7.0-1.21.023 Jul 20241.21.1, 1.2114.1 MB7.2k downloads0c8b1925b94e…Get
  • 1.6.1-1.20.611 Jun 20241.20.6, 1.20.514.1 MB384 downloads1b8dc86cd8ba…Get
  • 1.6.1-1.20.411 Jun 20241.20.414.2 MB428 downloads7713d6259193…Get
  • 1.6.1-1.20.211 Jun 20241.20.2, 1.20.1, 1.2014.6 MB32.4k downloads11f65de1baaf…Get
  • 1.6.1-1.19.411 Jun 20241.19.4, 1.19.314.3 MB418 downloadsac6bd2cb3ed3…Get
  • 1.6.1-1.19.211 Jun 20241.19.2, 1.19.1, 1.1914.2 MB1.0k downloadse4f288c52f7a…Get
  • 1.6.1-1.18.211 Jun 20241.18.2, 1.18.1, 1.1813.9 MB588 downloadsef38be07e9e4…Get
  • 1.6.1-1.17.111 Jun 20241.17.1, 1.1716.3 MB258 downloadsadb8f81fc4a3…Get
  • 1.6.0-1.20.410 Jun 20241.20.414.2 MB288 downloadsc4cacf6c2800…Get
  • 1.6.0-1.19.210 Jun 20241.19.2, 1.19.1, 1.1914.2 MB169 downloads9ee4b01a78ca…Get

Dependencies

What CB: Compressed Blocksdeclares it needs, from the author’s own release metadata. A required one has to be installed alongside it or it will not load.

Fabric APIRequired. Lightweight and modular API providing common hooks and intercompatibility measures utilized by mods using the Fabric toolchain.Forge Config API PortRequired. NeoForge's & Forge's config systems provided to other modding ecosystems. Designed for a multiloader architecture.Mod MenuOptional. Adds a mod menu to view the list of mods you have installed.

Frequently asked

Does CB: Compressed Blocks work on Minecraft 26.3?

Yes. 26.3 is the newest Minecraft version CB: Compressed Blocks 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 CB: Compressed Blocks support?

Everything the author has declared, from 1.15.2 up to 26.3. The full list is in the table above, with the Java runtime each version needs next to it.

Do I need to install CB: Compressed Blocks on the client or the server?

Both. Every player needs it installed and so does the server, so anyone joining without it will be refused.

Which platform or loader does CB: Compressed Blocks support?

NeoForge, Forge, 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 CB: Compressed Blocks?

Among the supported Minecraft releases above, the highest recorded requirement is Java 25 or newer. Use the requirement for the exact Minecraft version you run; previews and snapshots may differ.

What does CB: Compressed Blocks need to run?

It declares Fabric API and Forge Config API Port as required, so those have to be installed alongside it or it will not load. Each one is linked in the dependencies section above.

What licence is CB: Compressed Blocks 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 CB: Compressed Blocks?

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 CB: Compressed Blocks 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.

GeckoLibA 3D animation library for entities, blocks, items, armor, and more!BookshelfAn open source library for other mods!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.Enchantment DescriptionsAdds in-game descriptions for enchantments to tooltips.

Details from Modrinth, where the author last updated it on 15 Oct 2026. 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? .