HeroSync Docs

~1 min read vr1.4.0 Fabric

Overview #

HeroSync is a client-side latency-compensation framework. It does not reduce your ping — it reduces what your ping feels like.

Network latency makes otherwise-fine gameplay feel heavy. HeroSync removes that feeling client-side: your actions register instantly, then reconcile with the authoritative server — rolling back cleanly when the server disagrees.

Quick start #

  1. Download the HeroSync JAR for your Minecraft version.
  2. Place it in your Fabric mods folder (Fabric API recommended).
  3. Join any server; actions now feel responsive immediately.
  4. Configure or disable features from the in-game settings if provided.

Frequently asked questions #

Does this work on servers without the mod?
Yes. HeroSync is client-side and requires nothing on the server.
Will it get me banned?
It compensates for latency like predictive clients do. Always check server rules.
Which versions are supported?
1.21 through 1.21.11; 26.x builds are experimental.

Compatibility #

PropertyValue
Loader / platformFabric
Minecraft versions1.21, 1.21.1, 1.21.2, 1.21.3, 1.21.4, 1.21.5, 1.21.6, 1.21.7, 1.21.8, 1.21.9, 1.21.10, 1.21.11
Latest versionr1.4.0

26.x builds are experimental (bundled-mappings).