Packwiz Modpack Loader

Loads and (auto) updates Packwiz Modpacks.

3.8K Downloads

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About this Mod

Packwiz Modpack Loader

Loads and (auto) updates Packwiz Modpacks.

(Neo)Forge Versions

The mod should work if you install Sinytra's Connector alongside it

Usage

Make a Packwiz modpack
Use /packwiz link [URL] to link to your pack.toml file
Update the modpack using /packwiz update

Permissions

You can now set a minimum permission level for calling the /packwiz command. By default this is set to 4 (Operator)
This may be useful if you who want to give regular players (level 0) or those in creative (level 2) an option to link and update the modpack.

Available Versions

Packwiz Modpack Loader 3.1.0+1.21.4release

MC 1.21.4, 1.21.5, 1.21.6, 1.21.7, 1.21.8, 1.21.9, 1.21.10fabric, quilt

December 20, 2025

Packwiz Modpack Loader 3.1.0+1.19release

MC 1.19, 1.19.1, 1.19.2, 1.19.3, 1.19.4, 1.20, 1.20.1, 1.20.2, 1.20.3, 1.20.4, 1.20.5, 1.20.6, 1.21, 1.21.1fabric, quilt

December 20, 2025

Packwiz Updater 3.0.0+1.21.4release

MC 1.21.4, 1.21.5, 1.21.6, 1.21.7, 1.21.8, 1.21.9, 1.21.10fabric, quilt

November 25, 2025

Packwiz Updater 3.0.0+1.19release

MC 1.19, 1.19.1, 1.19.2, 1.19.3, 1.19.4, 1.20, 1.20.1, 1.20.2, 1.20.3, 1.20.4, 1.20.5, 1.20.6, 1.21, 1.21.1fabric, quilt

November 25, 2025

Packwiz Server Updater 2.2.0release

MC 1.19, 1.19.1, 1.19.2, 1.19.3, 1.19.4, 1.20, 1.20.1, 1.20.2, 1.20.3, 1.20.4, 1.20.5, 1.20.6, 1.21, 1.21.1fabric, quilt

November 29, 2024

How to Install Packwiz Modpack Loader 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 (1.21.10).

Install Mod

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

Compatibility

Mod Loaders

fabricquilt

Minecraft Versions

1.21.10, 1.21.9, 1.21.8 (+18 more)

Server-side

✓ Required

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

Packwiz Modpack Loader 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 (1.21.10). You can switch loaders with one click in the panel.

Is Packwiz Modpack Loader compatible with fabric and quilt?

Packwiz Modpack Loader officially supports fabric, quilt for Minecraft 1.21.10, 1.21.9, 1.21.8. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with Packwiz Modpack Loader – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Packwiz Modpack Loader 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.