Quilt Loader in Prism Launcher
Fork of Fabric with extended standard libraries that installs in one click from the Prism Launcher Edit Instance window. Supports Minecraft 1.14 – 1.21+.
How to Set Up Quilt Loader in Prism Launcher
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Complete setup checklist for Quilt Loader on Windows: version selection, Quilted Fabric API (QFAPI) / QSL, and shader/mod installation.
- Target Loader
- Quilt Loader
- Supported Versions
- 1.14 – 1.21+
- Required Library
- Quilted Fabric API (QFAPI) / QSL
Step-by-step Quilt Loader instance creation
- Launch Prism Launcher (available at /download) and click **Add Instance** on the top toolbar.
- Pick your target Minecraft version (1.14 – 1.21+) and select Quilt Loader under the Mod Loader section, then click **OK**.
- Right-click the new instance → **Edit** → **Mods** → **Download mods** and install `Quilted Fabric API (QFAPI) / QSL` along with your favorite mods.
Verifying Java and RAM before first launch
Open the **Settings** tab inside Edit Instance to confirm your Java installation matches the Minecraft version and set Maximum Memory to 4096 MiB (or 6144–8192 MiB for heavy mod lists).
If a newly added mod causes a crash, untick it in the **Mods** list without deleting the JAR file to test cleanly.
Frequently asked questions
Do I need to install Quilted Fabric API (QFAPI) / QSL manually?
When you use Prism Launcher's built-in **Download mods** browser, it automatically flags and queues required dependencies like Quilted Fabric API (QFAPI) / QSL.
Can I add shaders to this loader?
Yes. Install Iris Shaders (for Fabric/NeoForge) or Oculus (for Forge 1.20.1) in the Mods tab, then add your shaderpack ZIP in the Shader Packs tab.
Get Prism Launcher
Windows, macOS & Linux
Free and open source. Sign in with the Microsoft account that owns Minecraft, then create your first instance.
