Adding LiteLoader to a Technic modpack Client (1.6.x+)

You don't need to download anything, this method gets the Technic launcher to download and install LiteLauncher

  • Open the Technic Launcher
  • Select the modpack you want to update
  • Click the small cog icon on the modpack logo
  • Click 'Open Folder'
  • Go into the 'bin' folder Find the 'version.json' file and open it in a text editor. e.g. Notepad
  • Add '--tweakClass com.mumfrey.liteloader.launch.LiteLoaderTweaker' to the "minecraftArguments" section (line 2)
  • Add the following to the top of the libraries section change the 1.6.4 for other versions (Check here to see which versions are available):

"name": "com.mumfrey:liteloader:1.6.4",
"url": ""

  • Save the file
  • IMPORTANT >> Make the version.json file is set to Read Only. Technic launcher will undo your changes if you don't.


When you start the modpack, LiteLoader will be downloaded and installed automatically.

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