Async Hotbars

Minecraft mod that reduces brief hotbar lag by handling large item data asynchronously, preventing client freezes when saving or opening the creative saved item hotbar.

7.1K Downloads

fabricoptimization

Rent Server with this Mod

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About this Mod

Async hotbars is a lightweight client-side mod that reduces lag caused by hotbar and inventory updates.

Some players experience stuttering or short freezes when opening or saving to the hotbar.

This mod improves how hotbar updates are handled on the client by preloading the hotbar and running the save function asynchronously to make the inventory feel smoother and more responsive.

Available Versions

Async Hotbars 1.1.1release

MC 26.1, 26.1.1fabric

April 1, 2026

Async Hotbars 1.1.0release

MC 1.21.10, 1.21.11fabric

February 7, 2026

Async Hotbars 1.0.3release

MC 1.21.10, 1.21.11fabric

January 10, 2026

Async Hotbars 1.0.2release

MC 1.21.10fabric

December 2, 2025

hotbar-lag-fixer 1.0.2release

MC 1.21.6fabric

July 8, 2025

How to Install Async Hotbars on Your Server

Order Server

Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).

Set fabric Loader

In the panel under "Egg", select the fabric loader and matching Minecraft version (26.1.1).

Install Mod

Open the mod browser in the dashboard and search for "Async Hotbars". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.

Compatibility

Mod Loaders

fabric

Minecraft Versions

26.1.1, 26.1, 1.21.11 (+4 more)

Server-side

✗ Unsupported

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

Async Hotbars server crashes on startup – what to do?

Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (26.1.1). You can switch loaders with one click in the panel.

Is Async Hotbars compatible with fabric?

Async Hotbars officially supports fabric for Minecraft 26.1.1, 26.1, 1.21.11. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with Async Hotbars – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Async Hotbars consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.