OptiFine for Fabric

OptiFine for Fabric is a curated modpack that rebuilds OptiFine's shaders, zoom, dynamic lighting, and connected textures out of separate Fabric mods instead of loading OptiFine's own code. It runs on Fabric only, with the current alpha build reaching Minecraft 26.3, and its client-required, server-optional design covers solo worlds, co-op, and public multiplayer alike.

What's included in OptiFine for Fabric

The pack leans on Sodium and Lithium for the rendering and physics optimizations that account for most of its FPS gain over vanilla, then layers Iris Shaders on top for OptiFine-style shader pack support. Krypton, Noisium, C2ME, ModernFix, BadOptimizations, and FerriteCore round out the performance side, each targeting a different bottleneck: networking, world generation, chunk loading, class loading, and memory.

• Shaders: Iris Shaders for OptiFine and Iris-format shader packs
• Textures: Continuity, It's All Connected, and Animatica for connected and animated textures
• Custom skins and models: [ETF] Entity Texture Features and [EMF] Entity Model Features
• Zoom and lighting: Zoomify for the zoom key, Sodium Dynamic Lights for handheld light sources
• Interface: Mod Menu, YetAnotherConfigLib, and Cloth Config API for in-game mod settings
• Compatibility: ViaFabricPlus for connecting across Minecraft versions, Very Many Players and C2ME for busier servers

OptiFine for Fabric versus running OptiFine on Fabric

OptiFine itself was built for the vanilla launcher and Forge, not Fabric, so it never runs on Fabric by itself. The only path to load the real OptiFine jar on Fabric is OptiFabric, a compatibility layer, and it has not published a new release since January 2024, which makes it an increasingly fragile match for current Fabric API and Minecraft versions. OptiFine for Fabric sidesteps that dependency completely: instead of loading OptiFine's own code, it bundles Sodium, Iris, and around 70 other Fabric mods that reproduce OptiFine's feature set from scratch.

The trade-off is that no combination of separate mods copies OptiFine's control panel setting for setting, so a handful of very specific OptiFine toggles have no exact Fabric equivalent, even though the broad strokes, shaders, zoom, connected textures, dynamic lights, and custom entity models, are all covered.

Connected textures and other bundled features

Connected textures, the effect that blends glass panes, bookshelves, and sandstone across neighboring blocks instead of showing repeated tile edges, come from Continuity and It's All Connected, both included by default. Animatica adds animated texture support next to them, so most resource packs built for OptiFine's CTM and animation formats work without edits. [ETF] Entity Texture Features and [EMF] Entity Model Features cover the custom mob skins and model overrides that OptiFine players usually reach for CIT packs to get.

Installation

OptiFine for Fabric ships as a Modrinth-format .mrpack file, so the simplest install goes through a launcher that reads that format, such as the Modrinth App or Prism Launcher. Search for OptiFine for Fabric inside the launcher, pick the build that matches the Minecraft version you want, and create the instance; the launcher installs Fabric Loader and every embedded mod for you, including Fabric API, which most of the bundle depends on. See how to install a Minecraft modpack for the general Modrinth and CurseForge launcher steps.

Supported Minecraft versions

OptiFine for Fabric is Fabric-only. The project's version history stretches back to 1.16.5, and the current alpha build reaches Minecraft 26.3.