KeepThatInventoryOpen
A simple client side mod that takes off inventory closing packets, so you can use the crafting grid as an additional storage space.
About this Mod
Background: When you open an inventory, the client does not send a packet to the server. However, when you close the inventory, a packet is sent. This behavior prevents you from using the crafting grid as a storage space.
Store Items in the Crafting Grid
KeepThatInventoryOpen is a client-side mod that prevents the client from sending the inventory close packet. This allows you to store items in the crafting grid and the mouse slot. But be aware that these items will get thrown out of the inventory if you rejoin the world/server.
Use at your own risk. Some servers may view this as an unfair advantage.
Available Versions
How to Install KeepThatInventoryOpen 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 (1.21.11).
Install Mod
Open the mod browser in the dashboard and search for "KeepThatInventoryOpen". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.11, 1.21.10, 1.21.9 (+24 more)
Server-side
✗ UnsupportedRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
KeepThatInventoryOpen 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 (1.21.11). You can switch loaders with one click in the panel.
Is KeepThatInventoryOpen compatible with fabric?
KeepThatInventoryOpen officially supports fabric for Minecraft 1.21.11, 1.21.10, 1.21.9. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with KeepThatInventoryOpen – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if KeepThatInventoryOpen 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.
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Rent Modded Server
Install KeepThatInventoryOpen with just one click on your server.