Window Size Mod FAQ

Open your Settings menu in-game, then navigate to the Video settings tab. The window size slider will appear near the top of the options, and only works when you're not in fullscreen mode.

No. Changes apply immediately when you adjust the slider, and the mod automatically saves your preference so it persists when you close and reopen the game.

Make sure you're in windowed mode, not fullscreen—the slider only appears for non-fullscreen windows. If you're in windowed mode and still don't see it, verify the mod is properly installed and loaded.

No, the window size slider is disabled in fullscreen mode. You'll need to switch to windowed mode in your Video settings to access the slider.

The slider lets you adjust your window across a range of sizes, but the exact minimum and maximum depend on your monitor resolution and system capabilities.

The mod itself has minimal impact on performance, but running Minecraft in a smaller window may improve frame rates on lower-end systems since there are fewer pixels to render.

Generally yes, but conflicts can occur with mods that heavily modify the Video settings menu. If you experience issues, try disabling other video-related mods to identify the culprit.

The slider provides preset or continuous sizing options depending on the mod version, but you cannot manually type in a specific pixel value through the in-game interface.

Your saved window size preference will remain, but it may appear differently on the new resolution. You can readjust the slider to fit your new display if needed.

Window Size Mod is a client-side mod, so it works in both single-player and multiplayer—it only affects your local game window and doesn't require the server to have it installed.