Launching Minecraft Directly into Borderless Mode

Adding the Startup Flag

If you prefer Minecraft to open in borderless fullscreen immediately upon startup without pressing hotkeys or changing in-game menus, you can use the mod's dedicated launch flag:

1. Open your Minecraft launcher and navigate to the settings or installation profile you use for your modded game.

2. Find the launch options field for JVM arguments or additional game parameters.

3. Append the following argument to the parameters:

--borderless

4. Save your installation settings and launch the game.

Launch Behavior

When the game initializes with this flag present, it automatically bypasses the default windowed start and loads directly into a borderless fullscreen window. This ensures that your game window cleanly occupies your primary monitor right from the loading screen on Windows, macOS, and Linux systems without affecting input latency.