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ZSTDNETMinecraft mod for 1.21.1

Use ZSTD to compress and relay traffic between the client and server, aiming to reduce public bandwidth usage in high-redundancy data scenarios.

newest supported release 1.21.1Server UtilityPerformance
Latest version
zstdnet-1.21.1-fabric-1.5.0.jar
Minecraft
1.20.1 to 1.21.1
Java
Java 21+
Loaders
Fabric, NeoForge, Forge
Licence
not stated
Downloads
42.4k
Updated
1 mo ago
Available on
CurseForge

Screenshots

Click a screenshot to open it. Screenshots are served from the author’s own host and belong to them.

Minecraft versions

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

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.1Fabric, NeoForge, Forge21+declared8 Aug 2024
1.20.1Fabric, NeoForge, Forge17+declared12 Jun 2023

Download

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

Browse 55 indexed releases

For Minecraft 1.21.1

Choose the loader you use before downloading.

  • Fabric

    zstdnet-1.21.1-fabric-1.5.0.jar · 3 Oct 2026 · zstdnet-1.21.1-fabric-1.5.0.jar

    Get Fabric

  • NeoForge

    zstdnet-1.21.1-neoforge-1.5.0.jar · 3 Oct 2026 · zstdnet-1.21.1-neoforge-1.5.0.jar

    Get NeoForge

Most recently published release

zstdnet-1.21.1-fabric-1.5.0.jarrelease3 Oct 2026

zstdnet-1.21.1-fabric-1.5.0.jar · 8.3 MB · for 1.21.1 · Fabric

Download this release
71681a2991dd…
Older versions24
  • zstdnet-1.21.1-neoforge-1.5.0.jar3 Oct 20261.21.18.2 MBaa0c4f644655…Get
  • zstdnet-1.20.1-fabric-1.5.0.jar3 Oct 20261.20.18.2 MB99253253b106…Get
  • zstdnet-1.20.1-neoforge-1.5.0.jar3 Oct 20261.20.18.2 MB29672ac15cc3…Get
  • zstdnet-1.20.1-forge-1.5.0.jar3 Oct 20261.20.18.3 MB1be4a890077c…Get
  • zstdnet-1.20.1-neoforge-1.4.9.jar27 Sept 20261.20.18.2 MBec9c75ee311a…Get
  • zstdnet-1.20.1-fabric-1.4.9.jar27 Sept 20261.20.18.2 MBc0e8e85c4ec8…Get
  • zstdnet-1.20.1-forge-1.4.9.jar27 Sept 20261.20.18.2 MBaf8332991563…Get
  • zstdnet-1.21.1-neoforge-1.4.9.jar27 Sept 20261.21.18.2 MB516d32ad7688…Get
  • zstdnet-1.21.1-fabric-1.4.9.jar27 Sept 20261.21.18.2 MBf7a9e49fc61f…Get
  • zstdnet-1.21.1-fabric-1.4.8.jar28 Aug 20261.21.18.4 MB429c14336d27…Get
  • zstdnet-1.21.1-neoforge-1.4.8.jar28 Aug 20261.21.18.4 MBcf1962fd9664…Get
  • zstdnet-1.20.1-fabric-1.4.8.jar28 Aug 20261.20.18.3 MBc05526e10492…Get
  • zstdnet-1.20.1-forge-1.4.8.jar28 Aug 20261.20.18.3 MB8c5b7a065cc3…Get
  • zstdnet-1.20.1-neoforge-1.4.8.jar28 Aug 20261.20.18.3 MB5e42944286f3…Get
  • zstdnet-1.20.1-neoforge-1.4.7.jar16 Jul 20261.20.18.3 MB11 downloads4361b55257bc…Get
  • zstdnet-1.20.1-fabric-1.4.7.jar16 Jul 20261.20.18.3 MB2 downloads6c3c18d378b4…Get
  • zstdnet-1.20.1-forge-1.4.7.jar16 Jul 20261.20.18.3 MB2 downloads68f97118c6a7…Get
  • zstdnet-1.21.1-neoforge-1.4.7.jar16 Jul 20261.21.18.3 MB2 downloads11d6c086c649…Get
  • zstdnet-1.21.1-fabric-1.4.7.jar16 Jul 20261.21.18.3 MB2 downloadsa0a84ae7b037…Get
  • zstdnet-1.21.1-fabric-1.4.6.jar29 Jun 20261.21.18.3 MB61 downloadsdae8e330e890…Get
  • zstdnet-1.21.1-neoforge-1.4.6.jar29 Jun 20261.21.18.2 MB59d55030b0bc…Get
  • zstdnet-1.20.1-neoforge-1.4.6.jar29 Jun 20261.20.18.2 MB5abf6ea17775…Get
  • zstdnet-1.20.1-fabric-1.4.6.jar29 Jun 20261.20.18.2 MB351ba012df3f…Get
  • zstdnet-1.20.1-forge-1.4.6.jar29 Jun 20261.20.18.2 MBb3652980e673…Get

Frequently asked

Does ZSTDNET work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version ZSTDNET 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 ZSTDNET support?

Everything the author has declared, from 1.20.1 up to 1.21.1. The full list is in the table above, with the Java runtime each version needs next to it.

Which platform or loader does ZSTDNET support?

Fabric, NeoForge, Forge. 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 ZSTDNET?

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.

How do I install ZSTDNET?

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 ZSTDNET safely?

Start with the author's page on CurseForge, 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.

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Details from CurseForge, where the author last updated it on 3 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? .