How do I install FabricSkyBoxes Interop Mod (1.21.1, 1.20.1) – Compatibility Add-on?

Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. Download the .jar. Put it in the .minecraft/mods folder and launch that loader profile. In MC Java Mods, or directly above on this page.

What Minecraft version does FabricSkyBoxes Interop Mod (1.21.1, 1.20.1) – Compatibility Add-on work with?

The listing gives Minecraft 1.21.1, 1.20.1. This is the version stated by the author or source site, not something we verified ourselves.

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FabricSkyBoxes Interop Mod (1.21.1, 1.20.1) – Compatibility Add-on

Java mod listed for Minecraft 1.20–1.21. Downloads from the MC Java Mods app on Android.

by newhoaheo32

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FabricSkyBoxes Interop Mod (1.21.1, 1.20.1) – Compatibility Add-on — screenshot 1

FabricSkyBoxes Interop Mod (1.21.1, 1.20.1) – Compatibility Add-on — screenshot 2

FabricSkyBoxes Interop Mod (1.21.1, 1.20.1) – Compatibility Add-on — screenshot 3

FabricSkyBoxes Interop Mod (1.21.1, 1.20.1) – Compatibility Add-on — screenshot 4

FabricSkyBoxes Interop Mod (1.21.1, 1.20.1) – Compatibility Add-on — screenshot 5

FabricSkyBoxes Interop Mod is an add-on for FabricSkyboxes that enables support and compatibility with texture packs designed for MCPatcher/OptiFine. Simply put, if FabricSkyboxes doesn’t work correctly with a resource pack requiring OptiFine, installing this mod may fix the issue.

Features:

Converts MCPatcher/OptiFine resource packs to work with FabricSkyBoxes.
If a native FabricSkyBoxes resource pack is detected, the mod won’t convert custom skies.
Allows OptiFine resource packs with custom skies to function without additional setup.
Users can disable FabricSkyBoxes’ native format, ensuring full compatibility.

Screenshots:

FabricSkyBoxes Interop Mod (1.21.1, 1.20.1) – Compatibility Add-on — Minecraft Java mod, screenshot 2

FabricSkyBoxes Interop Mod (1.21.1, 1.20.1) – Compatibility Add-on — Minecraft Java mod, screenshot 3

FabricSkyBoxes Interop Mod (1.21.1, 1.20.1) – Compatibility Add-on — Minecraft Java mod, screenshot 4

FabricSkyBoxes Interop Mod (1.21.1, 1.20.1) – Compatibility Add-on — Minecraft Java mod, screenshot 5

FabricSkyBoxes Interop Mod (1.21.1, 1.20.1) – Compatibility Add-on — Minecraft Java mod, screenshot 6

FabricSkyBoxes Interop Mod Download Links

For Minecraft 1.21.1, 1.21

For Minecraft 1.20.6

For Minecraft 1.20.4, 1.20.3

For Minecraft 1.20.2

For Minecraft 1.20.1, 1.20

For Minecraft 1.19.4

For Minecraft 1.19.2

For Minecraft 1.18.2

For Minecraft 1.17.1

For Minecraft 1.16.5

Quick facts

Edition: Minecraft Java
File type: .jar
Minecraft versions listed: 1.21.1, 1.20.1
How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
Where to get it: In MC Java Mods, or directly above on this page.

Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.

File checked by MCModsHub

Downloads as 178442.mcaddon
Download size: 72 KB
Download link checked 24 Jul 2026 — working
Mirrored on our own servers — the download does not depend on the original host

These come from our own check of the pack file, not from the source page.

Explore more

All Mods for Java All Minecraft Java mods Java mods for 1.21 Java mods for 1.20