OptiFabric Mod (1.21.1, 1.20.1) – Run OptiFine with Fabric Modloader

OptiFabric is a lightweight compatibility mod that allows you to run OptiFine on the Fabric Modloader. It dynamically adapts OptiFine to Fabric at runtime, giving you the best of both worlds – full OptiFine shader support and the flexibility of Fabric mods.

With OptiFabric, you can use shaders, connected textures, emissive mobs, and other OptiFine-exclusive features while keeping your Fabric-based mod setup. It’s essential for players who want visual enhancements without switching to Forge.

⚙️ Features

🚀 Improved Performance and Optimization
Helps reduce lag by optimizing block rendering, mob AI, block ticking, and game physics.

🖼️ Full Support for OptiFine Visuals
Enables custom entity models, random textures, emissive/glowing mobs, and shader compatibility from OptiFine.

💡 Smart Rendering in Background
Slows down rendering when Minecraft is minimized or inactive to preserve system resources.

🌐 Network Stack Optimization
Improves multiplayer performance by refining the way Minecraft handles networking under Fabric.

🧠 Reduced RAM Usage
Efficient memory handling ensures smoother performance, especially on lower-end machines.

🌍 Quick Language Switching
Allows faster switching between languages through OptiFine’s UI integration.

⚠️ Important Notes:

OptiFine is not included. You must download the official OptiFine .jar file separately.

This project is not affiliated with Fabric or OptiFine. It simply bridges compatibility between them.

OptiFabric is the go-to solution for anyone using Fabric but still wanting access to OptiFine’s powerful graphics and customization tools. It’s simple, effective, and keeps your modded game looking great.