Installing OptiFine without installing Java

Written by Colin22 July 2019

Tags: gaming

I’m a huge fan of using the OptiFine mod while playing Minecraft. It makes the game run smoother on my Mac, and allows me to use really cool shaders on my gaming desktop. However, when it comes to installing OptiFine, you need to have a Java runtime installed. However, it is possible to install OptiFine using the Java runtime that is included with Minecraft.

Note that this article assumes that you are using the .exe or .dmg releases of Minecraft, and NOT the .jar release.

Installation on macOS

  1. Open your terminal
  2. cd to this directory: ~/Library/Application Support/minecraft/runtime/jre-x64/jre.bundle/Contents/Home/bin
  3. Run this command: ./java -jar ~/Downloads/OptiFine-version.jar
  4. Install as usual.

Output should be similar to this:

Mac Terminal

Installation on Windows

  1. Open Command Prompt or Powershell
  2. cd to C:\Program Files (x86)\Minecraft\runtime\jre-x64\bin\
  3. Type java -jar then press spacebar, and then drag your OptiFine .jar onto the command prompt window
  4. Install as usual.