Remove title bar and borders on maximized windows in Kubuntu

To remove the borders of maximized windows in KDE Plasma 5, run the following commands:

kwriteconfig5 --file ~/.config/kwinrc --group Windows --key BorderlessMaximizedWindows true
qdbus org.kde.KWin /KWin reconfigure

This is equivalent to doing the following:

1. Edit the file ~/.config/kwinrc to add the line:

   BorderlessMaximizedWindows=true
   

   under the [Windows] section, so that it looks something like this:

    [Windows]
    BorderlessMaximizedWindows=true
    ActiveMouseScreen=true
    AltTabStyle=KDE
    AutoRaise=false
    AutoRaiseInterval=750
    BorderSnapZone=10
    CenterSnapZone=0

   In older versions of KDE, the file may be located at:

   ~/[.kde|.kde4|.kdemod4]/share/config/kwinrc

2. Restart KWin by running:

    kwin --replace
   

   If that does not work, try one of the following, depending on which display server you are using:

    kwin_x11 --replace
    kwin_wayland --replace
   

Go crazy and maximize every window in sight! Remember that you can unmaximize them from the window menu (Alt + F3) or from the task manager in your panel. If quick tiling is enabled (System Settings → Desktop → Screen Edges → Window Management), you can also use Alt + Left mouse button to unmaximize windows by dragging them.

References

• Hide window border for maximized windows

In Kubuntu 18.04, one can toggle borders (including the titlebar) and the maximized state of windows relatively simply.

In System Settings, choose Shortcuts > Global Shortcuts > KWin. In there, scroll to Hide Window Borders and set a shortcut. I chose Meta+D and clicked Apply.

Now I can toggle borders by just pressing Meta+D.

Still, while in System Settings > Shortcuts > Global Shortcuts > KWin (in Kubuntu 18.04.1 LTS, Kwin corresponds to System Settings Module), scroll further down to Maximize Window. Here, I chose Meta+X and clicked Apply.

Now I can toggle between a non-maximized window and a maximized one by just pressing Meta+X.

Obviously, I can use both Meta+D and Meta+X on the same window whenever I want.

Remove top border or title bar in KDE/Kubuntu while retaining the windows button (Window Buttons Applet)

Requirements:

1.Latte Dock - Install from discover,right click on the dock, layouts>preferences>borderless> tick borderless>under layouts

• Requires
• Qt >= 5.9
• KF5 >= 5.38
• Plasma >= 5.12
• KDecoration2 >= 5.12
• Qt elements: Gui Qml Quick
• KF5 elements: CoreAddons Declarative Plasma PlasmaQuick extra-cmake-modules Install

2.Window Buttons Applet - Download from (present under files tab) https://store.kde.org/p/1272871/

3.Follow this:

1. Copy and paste this command in terminal

Before running the installation script you have to install the dependencies needed for compiling.

Ubuntu

sudo apt install g++ extra-cmake-modules qtbase5-dev qtdeclarative5-dev libkf5declarative-dev libkf5plasma-dev libkdecorations2-dev gettext

Building and Installing

2.use your package manager to download cmake,I'm using Muon package manager and had cmake already installed Steps: Click on installation and then apply changes Now you can run the installation script.

sh install.sh

3.Right click >Desktop Add widgets,search windows button and drag it to top right corner, then edit its settings and lock your widgets.

Always backup your kde customization

Video Demonstartaion:https://youtu.be/4YnTnjyq40Y

This how your desktop will look after that with minimize,maximize and close buttons on the top right without borders