sct is a lightweight utility to set the color temperature of the screen.

If arguments are given, xtitle outputs the title of each specified window, otherwise it outputs the title of the active window. With snoop mode on, it continuously monitors the specified windows and outputs when titles change.

Hyprpaper is a blazing fast wallpaper utility for Hyprland with the ability to dynamically change wallpapers through sockets. It will work on all wlroots-based compositors, though.

xss-lock listens to X signals to fire up a user-defined screensaver. In effect this automatically locks the screen when closing a laptop lid or after a period of user inactivity (as set with xset s TIMEOUT). The notifier command, if specified, is executed first. Additionally, xss-lock uses the inhibition logic to lock the screen before the system goes to sleep.

Mtdev is a stand-alone library which transforms all variants of kernel MT events to the slotted type B protocol. The events put into mtdev may be from any MT device, specifically type A without contact tracking, type A with contact tracking, or type B with contact tracking.

Rxvt-unicode (urxvt) is a colour vt102 terminal emulator intended as an xterm replacement for users who do not require features such as Tektronix 4014 emulation and toolkit-style configurability. It supports unicode, XFT and may be extended with Perl plugins. It also comes with a client/daemon pair that lets you open any number of terminal windows from within a single process.

rofi-calc is a rofi plugin that uses qalculate's qalc to parse natural language input and provide results.

xsettingsd is a lightweight daemon that provides settings to Xorg applications via the XSETTINGS specification. It is used for defining font and theme settings when a complete desktop environment (GNOME, KDE) is not running. With a simple .xsettingsd configuration file one can avoid configuring visual settings in different UI toolkits separately.

GNU Xnee is a program that can record, replay and distribute user actions in X11. It can be used to automate user interactions for testing or demonstration purposes.

numlockx is a tiny program that lets you turn on the numlock key in X11. It can be called from the user's initialization files to automatically turn it on on login.

maim (Make Image) is a tool that takes screenshots of your desktop and saves it in any format. Along with a full screen, it allows you to capture a predefined region or a particular window. Also, it makes it possible to include cursor in the resulting image.

unclutter-xfixes is a rewrite of the popular tool unclutter, but using the x11-xfixes extension. This means that this rewrite doesn't use fake windows or pointer grabbing and hence causes less problems with window managers and/or applications.

Unclutter is a program which runs permanently in the background of an X11 session. It checks on the X11 pointer (cursor) position every few seconds, and when it finds it has not moved (and no buttons are pressed on the mouse, and the cursor is not in the root window) it creates a small sub-window as a child of the window the cursor is in. The new window installs a cursor of size 1x1 but a mask of all 0, i.e. an invisible cursor. This allows you to see all the text in an xterm or xedit, for example. The human factors crowd would agree it should make things less distracting.

The XCB util module provides a number of libraries which sit on top of libxcb, the core X protocol library, and some of the extension libraries. These experimental libraries provide convenience functions and interfaces which make the raw X protocol more usable. Some of the libraries also provide client-side code which is not strictly part of the X protocol but which has traditionally been provided by Xlib.

XCB util-xrm module provides the following libraries:

- xrm: utility functions for the X resource manager.

xcalib is a tiny tool to load the content of vcgt-Tags in ICC profiles to the video card's gamma ramp. It does work with most video card drivers except the generic VESA driver. Alter brightness, contrast, RGB, and invert colors on a specific display/screen.

XForms is a graphical user interface toolkit for X based on the X11 Xlib library. It allows you to create windows, containing all kinds of widgets (buttons, sliders, browsers, menus etc.) with a few lines of code and then attach actions to the widgets, i.e., have some function called when a button is pressed. To make this even easier XForms comes with a program called fdesign that allows you to design a GUI for a program directly on the screen and which then writes out the necessary C code for it.

Pixman is a low-level software library for pixel manipulation, providing features such as image compositing and trapezoid rasterisation.

xscreensaver is a popular screen saver collection with many entertaining demos. It also acts as a nice screen locker.

Startup-notification contains a reference implementation of the startup notification protocol. The reference implementation is mostly under an X Window System style license, and has no special dependencies.

Tofi is a Dmenu and Rofi replacement for wlroots-based Wayland compositors such as Sway.

Redshift adjusts the color temperature according to the position of the sun. A different color temperature is set during night and daytime. During twilight and early morning, the color temperature transitions smoothly from night to daytime temperature to allow your eyes to slowly adapt. At night the color temperature should be set to match the lamps in your room.

XBindKeys is a program that allows you to launch shell commands with your keyboard or your mouse under the X Window System. It links commands to keys or mouse buttons, using a configuration file. It's independent of the window manager and can capture all keyboard keys (ex: Power, Wake...). It optionally supports a Guile-based configuration file layout, which enables you to access all XBindKeys internals, so you can have key combinations, double clicks or timed double clicks take actions. Also all functions that work in Guile will work for XBindKeys.

This package provides a small utility for inverting the colors on all monitors attached to an XRandR-capable X11 display server.

This package provides Hyprland's simple, yet multi-threaded and GPU-accelerated screen locking utility.

clipnotify is a simple program that, using the XFIXES extension to X11, waits until a new selection is available and then exits.

It was primarily designed for clipmenu, to avoid polling for new selections.

clipnotify doesn't try to print anything about the contents of the selection, it just exits when it changes. This is intentional -- X11's selection API is verging on the insane, and there are plenty of others who have already lost their sanity to bring us xclip/xsel/etc. Use one of those tools to complement clipnotify.