
Data Loader
Adds global data packs that are enabled by default to all worlds.
About this Mod
This mod is a port of sargunv's Data Loader.
This mod adds a datapacks folder inside your game directory where you can put datapacks that will apply to all worlds.
Configuration
Unlike sargunv's original mod, this port has a completely optional load order configuration located in config/data-loader.json.onlyLoadSpecified: When set to true Minecraft will only load the datapacks in the loadOrder list and the fabric datapack. Unless the vanilla datapack or a suitable replacement is provided the game will crash upon launch.
loadOrder: Minecraft will load the datapacks in the order specified in this list. Datapacks in the ´datapacks´ folder needs to be prefixed with ´file/´, the vanilla, fabric and experimental datapacks don't need to be prefixed with anything. Internal mod datapacks should however be prefixed by the mod id and the / should be replaced by a :.
Available Versions
How to Install Data 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 (1.21.5).
Install Mod
Open the mod browser in the dashboard and search for "Data Loader". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.5, 1.21.4, 1.21.3 (+19 more)
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Data 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 (1.21.5). You can switch loaders with one click in the panel.
Is Data Loader compatible with fabric and quilt?
Data Loader officially supports fabric, quilt for Minecraft 1.21.5, 1.21.4, 1.21.3. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Data Loader – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Data 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.
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Install Data Loader with just one click on your server.