Hexxit Wiki

*Please note this is not for a vanilla Minecraft install of Optifine. This is for using Optifine with Hexxit.

Optifine is a mod to Minecraft dedicated to increasing performance of the game. This tutorial is dedicated to using optifine with Hexxit as quickly as possible and in as few steps as possible.

Required Downloads/Programs[]

One of the following versions. For more information, see Optifine FAQ's first QA.
One of the following programs

Requires Pre-steps[]

  • Hexxit and the launcher should be closed
  • Install WinRAR, 7Zip, IZArc, or similar program
  • Unzip Optifine

Windows XP[]

  • Click the Start button
  • Click "Run"
    • Alternatively, these two steps can be combined by pressing the ⊞ WindowsR
  • Type in "%appdata%\.technic\modpacks\hexxit\bin"
  • Press Enter
  • Go to "Following Steps" section

Windows Vista/7/8/10/11[]

The instructions from Windows XP can be used if the Run menu item is available

  • Click the Start button
  • Enter %appdata% in the search
  • Click on result
  • Click on 'Roaming'
  • Click on '.technic'
  • Click on 'modpacks'
  • Click on 'Hexxit'
  • Click on 'bin'
    • Alternatively, these steps can be combined by pressing the ⊞ WindowsR
  • Go to "Following Steps" section


  • Open Finder
  • Press ⌘ Command⇧ ShiftG
  • Enter ~/Library/Application Support/technic/modpacks/hexxit/bin/
  • Continue with the Following Steps

Following Steps[]

  • Open Modpack.jar using WinRAR, 7Zip, or similar program
  • Copy all Files from your Optifine/Bin folder into the modpack.jar
    • It may ask you to overwrite files. Click Yes To All to accept all files, if the program doesn't offer this, simply use the Yes button.
  • Start normally


  • In the event the game does not load, or does not work properly. The folder "META-INF" inside the Modpack.jar may need to be deleted.
  • If you attempted to download a version other than those provided on this tutorial, it may not work properly.
  • If attempting to use a light version of Optifine, it will never work with the modpack due to forge mod loader (FML) incompatibilities.
  • Warning: Optifine can cause visual oddities with the following mods