Borderless Fullscreen
by Bestsoft100
With Borderless Fullscreen installed, the Minecraft window can switch between exclusive and borderless fullscreen without restarting the game, and its fullscreen options become configurable.
What it does
Borderless Fullscreen changes how the game's fullscreen mode behaves. Players can choose the monitor and resolution used in fullscreen, run custom fullscreen resolutions on any monitor, and stop the game from starting in fullscreen. The configuration screen opens with CTRL and F11, or the fullscreen key the player has set, and is also reachable through Mod Menu.
The mod can lock the cursor to the game window on versions before 26.3, except 1.20.1, where the old GLFW release does not support it. It can also stop the game from minimizing when focus leaves, or make it minimize automatically on 26.3, where that option was removed. Fabric API is required, Mod Menu and Sodium are optional, and B100Lib is bundled inside the mod.
The mod is client-side only, so servers do not need it. It is released under the GNU General Public License v3.0 only and is open source, with public source code and an issue tracker. Files exist for 1.20.1 and for every release from 1.21 up to 26.3, the latest being 2.5.1-26.3 for 26.3, dated 2026-10-01.
Key features
Exclusive and borderless switching
Toggle between exclusive fullscreen and borderless fullscreen while the game keeps running.
Cursor confinement
Keep the mouse pointer inside the game window on supported versions.
Minimize control
Stop the game from minimizing when tabbing out, or enable automatic minimizing where the option was removed.
Custom fullscreen resolutions
Run fullscreen at custom resolutions on any connected monitor.
Startup and monitor selection
Prevent the game from launching in fullscreen and choose which monitor the game uses in fullscreen.
Gallery
Compatibility
Latest build for each game version and loader.
26.x5 of 5 versions with builds
1.21.x12 of 12 versions with builds
1.20.x1 of 1 version with builds
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 1
Optional 2
Embedded 1
Use cases
Linux desktops with a taskbar
Players whose taskbar sits above the game can turn off the Borderless Fullscreen option, since some window systems do not allow other windows in front of the game without a custom window rule.
Who it’s for: Players who switch between windowed work and the game, use several monitors, or want control over how fullscreen starts and sizes itself.
Questions
Does Borderless Fullscreen need Fabric API?
Does the mod have to be installed on the server?
Why is cursor confinement missing on 1.20.1?
In the catalog
Borderless Fullscreen is one of 3,545 Optimization mods on ModsFinder, and one of 2,575 Optimization mods for Fabric. 8,071 mods support Minecraft 26.3.
More from Bestsoft100
Similar mods
What the author says
If you are on Linux, and the taskbar is above the game, disable the Borderless Fullscreen option. On some Linux distributions you cannot have anything in front of the game, because some window systems don't support regular always-on-top windows. In that case, you have to create a custom window rule to put something…
Official listing
- Modrinth page
- modrinth.com/mod/borderless-fullscreen
- Owner
- Bestsoft100
- Published
- 2024-10-04
- Updated on Modrinth
- 2026-10-01
- Facts verified
- 2026-10-15