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ZstdMC

Mod

a mod using zstandard to saving network bandwidth

Type

Mod

Modrinth Downloads

6,024

Modrinth ID

V83LSrQy

Last Updated

Jul 29, 2026

Description

ZstdMC: Multiplayer Network Optimization ZstdMC is a performance-focused mod designed to optimize network bandwidth usage in multiplayer environments.

By replacing Minecraft's built-in compression and decompression modules with the Zstandard (zstd) library, this mod achieves significantly higher compression ratios, resulting in substantial data savings. In most scenarios, it provides these benefits with no negative impact on the game's stability or performance.

Key Features Bandwidth Efficiency: Saves approximately 40% to 90% of network traffic in multiplayer mode.

Low Overhead: High-performance compression that minimizes CPU resource consumption.

Easy Setup: Simply drop the mod file into both the server and client mods folders.

Configuration Requirement To enable the optimization, ensure your server's server.properties file has the following parameter set:

network-compression-threshold=128 (or higher)

Important Note on Versions Fat Version (Recommended): In most cases, you should use the Fat version, which includes all necessary libraries.

Fit Version: If you experience crashes or compatibility issues, please switch to the Fit version to resolve them.

Compatibility

Mod Loaders

Neoforge

Game Versions

1.21.1

Screenshots

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External Resources