CurseForge · Minecraft mod

Fullscreen Windowed/Borderless

Adds reliable borderless fullscreen and borderless window modes to Minecraft 1.6.4 Forge, designed for fast Alt+Tab use on modern Windows and multi-monitor systems.

Choose a version Pick your version below, then grab the matching file.

Quick answer

Which Fullscreen Windowed/Borderless release matches 1.6.4?

Updated last month

Best match for your filters BorderlessWindow-1.6.4-1.0.0-srg.jar

Game version 1.6.4

Loader Forge

Fullscreen Windowed/Borderless BorderlessWindow-1.6.4-1.0.0-srg.jar targets 1.6.4 with Forge. The project page does not say whether this file belongs on the client, dedicated server, or both. No extra mods listed for this file.

Where it goes

Is Fullscreen Windowed/Borderless required on the client, server, or both?

The project page does not say whether this file belongs on the client, dedicated server, or both.

Client Source doesn’t say

Dedicated server Source doesn’t say

Loader for this release Forge

Required install it here Optional supported, not mandatory Not supported do not install here Source doesn’t say do not assume

The source does not explicitly classify this release as client-only or server-only.

Understand client and server requirements Read the Minecraft installation guide

What else does Fullscreen Windowed/Borderless BorderlessWindow-1.6.4-1.0.0-srg.jar need?

BorderlessWindow-1.6.4-1.0.0-srg.jar on 1.6.4. Every mod below is checked against that same setup.

No extra mods listed for this file

This file does not list any required mods. Do not add a library just because a different file uses it.

This file does not list any required or optional mods.

Before you install it

Add Fullscreen Windowed/Borderless without breaking your instance.

Built for Fullscreen Windowed/Borderless BorderlessWindow-1.6.4-1.0.0-srg.jar on 1.6.4. Pick another file and the loader, install side or required mods may change.

01
Stick to this file

Use BorderlessWindow-1.6.4-1.0.0-srg.jar. It targets 1.6.4 with Forge; another release may have different loader, side or dependency requirements.
02
Bring the mods it needs

This file does not list any required mods. Do not add a library just because a different file uses it.
03
Put it on the correct side

The project page does not say whether this file belongs on the client, dedicated server, or both.
04
Pick the file you checked

Use the “Get this file” button beside BorderlessWindow-1.6.4-1.0.0-srg.jar. It opens that exact file at the source.

About this project

What does Fullscreen Windowed/Borderless add?

Borderless Window adds modern borderless display modes to Minecraft 1.6.4 Forge, including legacy modpacks such as Tekkit.

The mod keeps Minecraft’s original exclusive fullscreen option intact and adds a separate Borderless setting to the Video Settings menu.

Display Modes

Borderless Fullscreen

Fills the monitor containing Minecraft without entering exclusive fullscreen.

This mode:

Uses the monitor’s native desktop resolution.
Removes the title bar and visible window borders.
Allows the mouse to move freely to other monitors when menus are open.
Provides faster and smoother switching between Minecraft and other applications.
Avoids changing the Windows display resolution.
Uses a multi-monitor-safe presentation method to prevent other displays from blanking.
Preserves the complete world render, HUD, menus, held items and block-selection outline.

Borderless Window

Creates a centred, borderless window using the resolution selected under:

Fullscreen Mode

For example, selecting 2560×1440 creates a borderless 2560×1440 window on a 4K monitor.

Off

Restores Minecraft’s ordinary decorated window, including its title bar and borders.

Video Settings Integration

The mod adds a separate setting without replacing Minecraft or OptiFine’s original fullscreen control:

Borderless: OFF
Borderless: Fullscreen
Borderless: Window

Click normally to cycle forward.

Hold Shift while clicking to cycle backwards.

Minecraft’s existing setting remains available independently:

Fullscreen: OFF / ON

This means genuine exclusive fullscreen can still be used whenever required.

Saved Settings

The selected borderless mode is saved automatically and restored the next time Minecraft starts.

Configuration is stored in:

config/BorderlessWindow.cfg

Commands

The mod also includes client-side commands for checking or changing the active mode:

/borderless status
/borderless off
/borderless fullscreen
/borderless window
/borderless reapply

Compatibility

Minecraft: 1.6.4
Mod loader: Forge
Platform: Windows
Side: Client only
Compatible with Forge-based legacy modpacks such as Tekkit.
Does not need to be installed on the server.

Current Behaviour

The selected Fullscreen Mode resolution controls the physical size of Borderless Window mode.

Borderless Fullscreen always renders at the monitor’s native desktop resolution. Selecting a lower resolution does not currently lower the internal rendering resolution while retaining a full-monitor borderless window. This avoids the rendering, mouse-alignment and HUD issues caused by experimental resolution-upscaling methods.

Project description from CurseForge.

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