Async Hotbars
by xpncvr
With Async Hotbars installed, hotbar updates are processed in the background, so opening or saving a hotbar on the Fabric client causes fewer short freezes.
What it does
Saving a hotbar and opening the creative inventory can stall the client while large item data is handled on the main thread. Async Hotbars moves that work to a separate thread, so the game keeps responding during the process. It is a lightweight client-side change that only affects how hotbar updates are handled. Builds exist for 1.21.5 – 26.3, and the mod is open source under the GNU General Public License v3.0 only.
Key features
Background hotbar saving
Saving a hotbar runs asynchronously, which reduces the freeze that can appear during the save step.
Smoother creative opening
Opening the creative inventory preloads hotbar data, so it appears with less stutter for players who notice it.
Lightweight client change
The mod only alters how hotbar inventory updates are handled and adds no new items, blocks or screens.
Gallery
Compatibility
Latest build for each game version and loader.
26.x5 of 5 versions with builds
1.21.x5 of 5 versions with builds
Only full game releases are shown. This mod publishes no snapshot builds.
In the catalog
Async Hotbars is one of 3,545 Optimization mods on ModsFinder, and one of 2,575 Optimization mods for Fabric. 8,071 mods support Minecraft 26.3.
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What the author says
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.
Official listing
- Modrinth page
- modrinth.com/mod/hotbar-lag-fixer
- Owner
- xpncvr
- Published
- 2025-07-08
- Updated on Modrinth
- 2026-10-08
- Facts verified
- 2026-10-15