FrameVoid

True borderless fullscreen for Minecraft 26.1.
No GPU switches. No black flashes. Instant alt-tab without minimizing.

What it does

Minecraft's built-in fullscreen uses exclusive fullscreen mode, which forces a GPU context switch every time you alt-tab. FrameVoid replaces it with a borderless windowed mode that covers your entire screen, so switching to other apps is instant and the game never minimizes.

Features

• Automatic borderless fullscreen when entering fullscreen mode
• Window stays visible when alt-tabbing. No minimize, no black flash
• Other windows can be brought to the foreground normally
• Action bar notification when borderless mode activates or deactivates
• Lightweight, no config screen needed, just press F11

Requirements

• Latest Fabric Loader
• Minecraft Java Edition Fabric 26.1+
• Latest Fabric API