Attack Cooldown Sync

fixes the noticable desync of your attack cooldown when swapping items (especially obvious on high ping)

by catgirljadeUtility

Fabric

Loaders: Fabric
Downloads on Modrinth: 6.4K
Followers on Modrinth: 12
versions: 7
Updated: June 16, 2026Jun 16
Published: in 2024

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At a glance

Runs on Fabric

For Minecraft 1.21.8, 26.1.2 …

Client only — no need to install it on the server

Latest version — 2.0 from June 16, 2026

License GPL-3.0-or-later — free

Where it's needed

In gamerequiredOn servernot needed

Install in the game only; not needed on the server

Game versions1.21.4, 1.21.8, 26.1.2 …

Fixes the noticable desync of your attack cooldown when swapping items. When swapping items, your attack speed is not updated until the server sends the packet to change your attributes. This mod predicts the attack speed and sets it once you swap items to make up for the delay between server and client.

FAQ

How to install Attack Cooldown Sync?

Install Fabric for your Minecraft version, download Attack Cooldown Sync for the same version and loader, put the file into the mods folder and launch the game with the loader profile.

Which Minecraft versions does Attack Cooldown Sync support?

Attack Cooldown Sync has builds for Minecraft 1.21.1, 1.21.4, 1.21.8, 26.1.2 ….

Is Attack Cooldown Sync needed on the server?

Client only — no need to install it on the server

License and source

GNU General Public License v3.0 or laterfree to use and share; changes to the mod itself must be published under the same license

Original — Modrinth↗Files unchanged, verified with SHA-512Is this your mod? For rights holders