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Browse free open source C++ Keyboards and projects below. Use the toggles on the left to filter open source C++ Keyboards by OS, license, language, programming language, and project status.

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  • 1

    Unikey Vietnamese Input Method

    A Vietnamese keyboard for Windows and Linux

    A Vietnamese keyboard for Windows and Linux
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    Downloads: 936 This Week
    Last Update:
    See Project
  • 2
    Deskflow

    Deskflow

    Share a single keyboard and mouse between multiple computers

    Deskflow is a lightweight productivity tool designed to streamline window and workspace management. It features hotkey-driven app launching, workspace switching, window snapping, search快捷启动, and minimal UI. Built with modern frameworks (likely Electron or Qt) and geared toward power users wanting efficient workflow control.
    Downloads: 87 This Week
    Last Update:
    See Project
  • 3
    Input Overlay

    Input Overlay

    Show keyboard, gamepad and mouse input on stream

    Input‑Overlay is an open-source OBS Studio plugin for Windows and Linux that visualizes keyboard, mouse, and gamepad inputs on screen during livestreams or recordings. It presents inputs as overlay source with configurable presets.
    Downloads: 51 This Week
    Last Update:
    See Project
  • 4
    Synergy Core

    Synergy Core

    The keyboard and mouse sharing tool

    This is the open source core component of Synergy, a keyboard and mouse sharing tool. Control your computers with one mouse and keyboard. Control multiple computers using only one keyboard and mouse. Focus on developing software, designing, gaming and remove time switching between operating systems. Throw away the extra keyboards and spend time where it really matters. Simplify your workspace by combining multiple computers into one. Easily copy and paste between computers with no effort at all. Keep your passwords and sensitive data secure with TLS encryption. Key, mouse and data all sent fast and securely, directly over your local network. Advanced customization settings give you complete control of your setup. The next version is being built from the ground up by combining the latest technologies, Node.js and React, with the rock-solid stability of C++.
    Downloads: 14 This Week
    Last Update:
    See Project
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  • 5
    Karabiner-Elements

    Karabiner-Elements

    Powerful utility for keyboard customization

    Karabiner-Elements is a powerful key remapper for macOS.
    Downloads: 8 This Week
    Last Update:
    See Project
  • 6
    Albert

    Albert

    A fast and flexible keyboard launcher

    Albert is a blazing-fast, plugin-based keyboard launcher written in C++/Qt.
    Downloads: 4 This Week
    Last Update:
    See Project
  • 7

    recaps

    Switch Windows input language using any key.

    Easy to use Windows keyboard layouts switcher.
    Downloads: 29 This Week
    Last Update:
    See Project
  • 8

    Tapper

    Keyboard layout switcher for X Widow System and Wayland

    Тapper — keyboard layout switcher for X Window System and Wayland. Tapper runs in background, when an assigned key is tapped, Tapper activates the corresponding keyboard layout. "Tap" means that a single key is pressed and quickly released, so (1) no other keys are pressed at this time, and (2) period between pressing and releasing is shorter than keyboard repeat delay (usually it is 0.5 s, but it depends on desktop settings). Tapper key feature is using modifier keys for switching keyboard layouts without losing modifier's functionality. Tapper works for GNOME, GNOME Classic, Cinnamon, i3, KDE, LXDE, LXQt, Mate, Ubuntu, Xfce desktops. There are prebult RPM packages for Fedora, Mageia, OpenMandriva, openSUSE, source tarball for configure && make is also available. Tapper is free software.
    Downloads: 12 This Week
    Last Update:
    See Project
  • 9
    This project is for a virtual keyboard on the silkscreen area of a PalmOS device. It supports multiple key layouts editable on the handheld itself; previewing on the screen; and macros to start programs or input keys. 10x4 Qwerty layout included.
    Downloads: 6 This Week
    Last Update:
    See Project
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  • 10
    Typing Commander

    Typing Commander

    Touch typing tutor

    Typing Commander is an offline touch typing software for both beginners and advanced typists. If you experience problems with downloading the program, see the page https://typingcommander.com/downloads/ for alternative ways of downloading.
    Downloads: 10 This Week
    Last Update:
    See Project
  • 11
    EDK has been developed to be a free keyboard layout configuration tool + GUI library. In order to be able to have english (latin), russian (cyrillic), chinese,etc keyboard layouts.It supplies Qt extended classes that support any unicode character.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 12
    Multilanguage on-screen keyboard for PocketPC (Windows Mobile)
    Downloads: 1 This Week
    Last Update:
    See Project
  • 13
    CVK - Clavier virtuel personnalisable pour des personnes atteintes d'un handicap. -- Custom virtual keyboard for people with reduced mobility.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 14
    Dvorak Command is a Mac-style Dvorak keyboard layout switcher for Windows. When a Ctrl+<Key> shortcut is pressed, the Dvorak layout is temporarily converted to a Qwerty layout. Thus, pressing Ctrl+J becomes Ctrl+C; Ctrl+K becomes Ctrl+V and so on.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 15
    EzerKb is a virtual keyboard for Windows. It emulates a keyboard with, for example, Russian, Greek, or Hebrew characters without actually installing a keyboard driver for that language. EzerKb works with most (but not all) Windows programs.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 16
    There are several problems using windows to typeset in farsi. This project is for supplying several small and useful programs to correct some of these problems for you. For example a keyboard layout, etc.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 17
    Virtual keyboard for PocketPC with "fat" buttons. So you can type by fingers without stilus.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 18
    FvwmKb is a module for Fvwm and Scwm window managers that makes it more comfortable to work with several Xkb keyboard layouts. For the focused window it stores the currently locked Xkb group (keyboard layout) in its internal database and restores it when
    Downloads: 0 This Week
    Last Update:
    See Project
  • 19
    Hunixboard
    Hunixboard is a Desktop Keyboard with several funktions. Optimized for Touchscreen small size (Virtual keyboard for X11) ~ Switchable Board with 4 different boards ~ one board optimized for using with Instant Player ~ Resizebale ~ always on Top
    Downloads: 0 This Week
    Last Update:
    See Project
  • 20
    KKBSwitch is a KDE panel applet which indicates the active keyboard layout (language). It is useful in conjunction with X Servers with the XKeyboard extension which have been configured to have more than one keyboard group
    Downloads: 0 This Week
    Last Update:
    See Project
  • 21
    Language Hint
    Helps you not to confuse the keyboard layout during text editing by showing the flag of the input language near the mouse cursor.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 22

    LayoutIndicator

    Keyboard layout indicator based on Arduino board

    Youtube demonstration: http://youtu.be/SU5VvrWWf7s?hd=1
    Downloads: 0 This Week
    Last Update:
    See Project
  • 23
    OpenMAIA. Free Virtual Keyboard Engine for disabled people. An Open Source project totally written in C++ with support of wxWindows library.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 24

    OnscreenKeyboard

    On-screen keyboard

    On-screen keyboard (with "numeric keypad only" option) for touch-screens.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 25
    QVirtboard

    QVirtboard

    Extendable on-screen keyboard.

    QVirtboard (Qt Virtual Keyboard) is a simple on-screen keyboard application, which extends its functionality in order to allow disabled people to control computer environment. This program can be used as a standard point-and-click virtual keyboard, as well as a more complex tool which can cooperate with web cameras or more sophisticated devices.
    Downloads: 0 This Week
    Last Update:
    See Project
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