Smooth Container is a lightweight mod that eliminates the frustrating lag spike when opening chests, hoppers, shulker boxes, and other containers. Instead of stuttering on open, the GUI renders instantly — making inventory management feel smooth and responsive.

📦 Installation

Install the correct mod loader for your Minecraft version (Fabric, Forge, or NeoForge).
Place smoothcontainer.jar into your .minecraft/mods folder.
Launch the game — no configuration or dependencies are required.

This mod is client-side only. It works perfectly on multiplayer servers even if the server does not have the mod installed.

✨ Features

Instant container rendering — eliminates the 100–300ms freeze that normally occurs when opening inventories.
Works with all vanilla containers — chests, hoppers, barrels, furnaces, shulker boxes, crafting tables, anvils, and more.
Mod container support — compatible with most modded storage blocks that use standard GUI rendering.
Lightweight — no config files, no performance overhead beyond the fix.
Client-side only — works on any server without requiring server-side installation.

🧩 Compatibility

Minecraft Version	Loaders Supported	Status
1.21.11	Fabric	✅ Supported
1.21.1	Fabric, NeoForge	✅ Supported
1.20.1	Fabric, Forge	✅ Supported
26.1.2	Fabric	✅ Supported

Required dependencies: None.

Known incompatibilities: None known. This mod is designed to work alongside all major optimization mods (Sodium, Lithium, etc.) and content mods.

❓ FAQ

Does this need to be installed on the server?
No — this is a client-side only mod. It will work on any server regardless of server-side mods.

Is this compatible with Sodium / OptiFine / Iris?
Yes. Smooth Container only modifies the GUI opening process and does not touch rendering pipelines or shaders.

Does this affect gameplay or container mechanics?
No — it only changes how the GUI renders when opening a container. All item interactions and mechanics remain unchanged.

I found a bug or crash, where do I report it?
Please report issues on the GitHub issue tracker. Include your Minecraft version, mod loader, and a log file if possible.

💖 Support the Project

If you find Smooth Container useful, consider supporting development:

📝 Modpacks & License

Licensed under MIT. You are free to include this mod in any modpack, on any platform, with or without attribution. Do not redistribute modified versions of the jar file without permission.

<details> <summary>Credits</summary>

Author: Itamio
Contributor: Asd1281yss
Based on research into container rendering performance bottlenecks.

</details>