Zenity is a tool that allows you to display GTK dialog boxes in commandline and shell scripts.


xmessage is described as 'Display a message or query in a window (X-based /bin/echo)' and is a Shell in the os & utilities category. There are more than 10 alternatives to xmessage for Linux, Windows, Mac, Python and Qt. The best xmessage alternative is Zenity, which is both free and Open Source. Other great apps like xmessage are Modern Message Box Generator, Yad, KDialog and easybashgui.
Zenity is a tool that allows you to display GTK dialog boxes in commandline and shell scripts.


Generates a customizable "Task Dialog" box - a more modern version of the old Windows message box.'



kdialog allows you to display dialog boxes from shell scripts. The syntax is very much inspired from the "dialog" command (which shows text mode dialogs).

Bash functions library for *BSD and GNU/Linux that aims to give simple GUI functions using yad, gtkdialog, kdialog, zenity, Xdialog, (c)dialog, whiptail or bash builtins depending on KDE or GNOME running or not, Yad/Gtkdialog/Xdialog installed or not and, eventually, X...
MessagePop is a simple application designed to help you convey a message to the computer user. The program allows you to specify the message text and the other parameters from the command line.



CocoaDialog is an OS X application that allows the use of common GUI controls such as file selectors, text input, progress bars, yes/no confirmations and more with a command-line application. It requires no knowledge of Cocoa, and is ideal for use in shell and Perl scripts (or...
My problem was that the KDialog code is still not ported to Qt5 and it depends on various Qt4/KDE4 components. The kdialog has big dependency sizes so we made an alternate dialogs like kdialog switches, options.

Does not work with Linux, which xmessage only works with.