
Smooth Container
Eliminates container open lag by instantly rendering GUIs.
About this Mod
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.jarinto your.minecraft/modsfolder. - 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.
Credits
- Author: Itamio
- Contributor: Asd1281yss
- Based on research into container rendering performance bottlenecks.
Available Versions
How to Install Smooth Container 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 (26.1.2).
Install Mod
Open the mod browser in the dashboard and search for "Smooth Container". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
26.1.2, 1.21.11, 1.21.1 (+2 more)
Server-side
~ OptionalRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Smooth Container 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 (26.1.2). You can switch loaders with one click in the panel.
Is Smooth Container compatible with fabric and forge and neoforge?
Smooth Container officially supports fabric, forge, neoforge for Minecraft 26.1.2, 1.21.11, 1.21.1. Note: Forge and Fabric mods are NOT cross-compatible – pick one loader and stick with it. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Smooth Container – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Smooth Container 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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