
Modrinth · Minecraft mod
Open Loader
An open source resource and data loader for Minecraft.
Quick answer
Which Open Loader release should I use?
Open Loader 19.0.5 targets 1.20.1 with Fabric. Installation on the client is optional. Installation on the dedicated server is optional. All 1 required mods have matching files.
Where it goes
Is Open Loader required on the client, server, or both?
Installation on the client is optional. Installation on the dedicated server is optional.
The source marks this as usable on both the client and server.
What else does Open Loader 19.0.5 need?
19.0.5. Change the file and its required mods may change too.
Install Fabric API first. We found matching files for this game-version and loader setup.
We only count dependency files that match this setup. A file for another loader does not fill the gap.
Before you install it
Add Open Loader without breaking your instance.
Built for Open Loader 19.0.5. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use 19.0.5. It targets 1.20.1 with Fabric; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
Install Fabric API first. We found matching files for this game-version and loader setup.
- 03
Put it on the correct side
Installation on the client is optional. Installation on the dedicated server is optional.
- 04
Pick the file you checked
Use the “Get this file” button beside 19.0.5. It opens that exact file at the source.
About this project
What does Open Loader add?
Open Loader is a utility mod that allows data packs and resource packs to be applied globally across all save files in a game instance. This can be used by mod packs and servers to define custom recipes and other features for a wide range of mods. It can also be used to change textures, override tooltips, and change other aspects of the game.
Data Packs
Data packs are used by Minecraft to load recipes, loot tables, functions, and other game mechanics. Many mods also pull from data packs to handle custom recipe systems and other new mechanics. OpenLoader will load any data packs that are placed in the ~/config/openloader/data folder. Before 1.17 they were loaded from ~/openloader/data instead. OpenLoader can load zipped and folder packs. You can learn more about data packs here.
Resource Packs
Resource packs are used to define textures, translations, sounds, and other client data. You can use them to override existing resources or add completely new ones. These packs are loaded from the ~/config/openloader/resources folder. Before 1.17 they were loaded from ~/openloader/resources instead. OpenLoader can load zipped or unzipped packs. You can learn more about resource packs here.
FaQ
Does this support mods like Patchouli or BotanyPots?
Yes, packs loaded by this mod will behave exactly like packs loaded through the vanilla systems. So anything that works through the normal resource packs folder or the world datapack folder will work here.
My pack is not loading?
If your pack is not loading it is because you have not followed the instructions properly or have made an invalid pack. Make sure you have the file placed in the right folder and that your pack has a valid pack.mcmeta file. Unfortunately I do not have the time or resources to help you debug your packs, but there are countless resources and communities available to help you make these things.
How does pack load order work?
Any resource packs loaded by OpenLoader should be loaded after vanilla and modded resource packs. Data pack load orders are done on a per-world basis instead and can be very annoying. Initially all data packs loaded by this mod will be loaded after vanilla and modded packs. Any mods added to the game after that initial world load will load after all previously loaded packs but only for that world. This can be fixed by using Vanilla's data pack command to correct the world order on a per-world basis. If you need more consistent control over load order I would recommend a scripting tool like CraftTweaker which is more robust and stable than the data pack system.
Files
Like the mod and want to support me?
This project is sponsored by Nodecraft. Use code DARKHAX for 30% off your first month of service!
Logo by Delapouite on Game Icons and licensed under CC By 3.0.
Project description from Modrinth.
Pick your setup
Open Loader by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
1.21.1
4 loader builds1.20.4
3 loader builds1.20.3
3 loader builds1.20.2
3 loader builds1.20.1
2 loader builds1.20
2 loader builds1.19.4
3 loader builds1.19.3
3 loader builds1.19.2
3 loader builds1.19.1
3 loader builds1.19
3 loader builds1.18.2
3 loader buildsShowing the newest 12 of 20 game versions. Older files are in the list below.
Check the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Open Loader versions and loaders
19.0.5
OpenLoader-Fabric-1.20.1-19.0.5.jar
12 Feb 2026
19.0.5
OpenLoader-Forge-1.20.1-19.0.5.jar
12 Feb 2026
21.1.5
OpenLoader-neoforge-1.21.1-21.1.5.jar
19 May 2025
21.1.5
OpenLoader-forge-1.21.1-21.1.5.jar
19 May 2025
21.1.5
OpenLoader-fabric-1.21.1-21.1.5.jar
19 May 2025
21.1.4
OpenLoader-neoforge-1.21.1-21.1.4.jar
14 May 2025
21.1.4
OpenLoader-forge-1.21.1-21.1.4.jar
14 May 2025
21.1.4
OpenLoader-fabric-1.21.1-21.1.4.jar
14 May 2025
21.1.3
OpenLoader-neoforge-1.21.1-21.1.3.jar
14 May 2025
21.1.3
OpenLoader-forge-1.21.1-21.1.3.jar
14 May 2025
21.1.3
OpenLoader-fabric-1.21.1-21.1.3.jar
14 May 2025
21.1.2
OpenLoader-neoforge-1.21.1-21.1.2.jar
28 Mar 2025
Looking for an older file? The official Modrinth project page is in Resources.