Open Source C Terminal Emulators

Project has been moved to https://github.com/marchaesen/vcxsrv Windows X-server based on the xorg git sources (like xming or cygwin's xwin), but compiled with Visual C++ 2012 Express Edition. Source code can also be compiled with VS2008, VS2008 Express Edition and VS2010 Express Edition, although current project and makefile are not fully compatible anymore. Versions starting from 1.14.3.0 are not compatible with Windows XP anymore.

Xming is the leading X Window System Server for Microsoft Windows 8/7/Vista/XP (+ server 2012/2008/2003). It is fully featured, small and fast, simple to install and because it is standalone native Microsoft Windows, easily made portable (not needing a machine-specific installation).

TeraTerm Project is developing the terminal emulator Tera Term and the SSH compatible extension module TTSSH. This is open source software under the BSD license. This is the official successor to the original Tera Term Pro 2.3. Development takes place on the project page on GitHub.

ExtraPuTTY - fork of putty 0.67. (Add win32 API,shortcuts for pre-defined command,can use files instead of the registry,auto-reconnect, scripting a session with lua,integrates FTP,TFTP,Ymodem,Xmodem transfert protocols, integrates cygwin, zmodem, session manager,hyper link projects and others ...)

This project maintains the Linux Console tools, which include utilities to test and configure joysticks, connect legacy devices to the kernel's input subsystem (providing support for serial mice, touchscreens etc.), and test the input event layer.

LibVNCServer/LibVNCClient are cross-platform C libraries that allow you to easily implement VNC server or client functionality in your program.

tn5250 emulates a 5250 terminal or printer over telnet, for connecting to IBM Power Systems, iSeries and AS/400 computers running IBM i, i5/OS and OS/400. It runs on any Unix or Windows system. Note that this project is now on GitHub at https://github.com/tn5250/tn5250

Arabeyes is a Meta project that is aimed at fully supporting the Arabic language in the Unix/Linux environment. It is designed to be a central location to standardize the Arabization process. Arabeyes relies on voluntary contributions.

mintty is a native Windows terminal emulator used as the Cygwin Terminal and commonly used with MSYS2, Git Bash, and WSL-related workflows. It provides an xterm-compatible terminal experience without requiring an X server. The project emphasizes a clean Windows interface, Unicode support, reliable terminal emulation, and practical configurability. It is popular among developers who need a Unix-like terminal environment on Windows while still using a lightweight native application. mintty supports theming, keyboard and mouse behavior customization, terminal control sequences, and integration with shell environments. Its main value is delivering a mature and minimal terminal emulator for Windows-based Unix toolchains.

SSVNC adds encryption security to VNC. It provides a GUI for Windows, MacOSX, and Unix that automatically starts up an SSL or SSH tunnel for connections to any VNC server. It also supports VeNCrypt encryption. The Unix viewer has many new features.

mlterm is a multi-lingual terminal emulator , which supports various character sets and encodings in the world.

FaTTY is a tabbed terminal emulator for Cygwin based on mintty. It was created for Windows and Cygwin users who wanted the mintty experience with multiple terminal sessions inside one window. The project keeps mintty’s terminal foundation while adding a tabbed interface for switching between sessions more conveniently. It is useful for users who manage several shells, SSH sessions, or command-line workflows at the same time. The repository has been archived, so it is best treated as a legacy or historical terminal project rather than an actively maintained tool. Its main value is showing how mintty could be extended into a multi-session terminal interface before tabbed terminal workflows became more common.

Mrxvt is a multi-tabbed X terminal emulator based on rxvt. It is portable, lightweight and fast. It supports psuedo-transparency, background image (JPEG/PNG/XPM), tinting, NeXT/Rxvt/Xterm/SGI style scrollbar, multi-languages (CJK), XIM, freetype font...

Qodem is a a terminal emulator that resembles the BBS-era Qmodem. Includes phonebook, scrollback, capture, X/Y/Zmodem, Kermit, ANSI (+ music) / Avatar / VT102 / Linux emulation, Unicode, and keyboard macros. Connects over serial, ssh, telnet, rlogin.

rxvt is a colour vt102 terminal emulator intended as an xterm(1) replacement for users who do not require features such as Tektronix 4014 emulation and toolkit-style configurability. The rxvt terminal is light on system resources and otherwise packe dwit

PXES is a Linux micro distribution that will convert (or recycle) in minutes any compliant hardware into a versatile thin client capable of accessing any Unix/Linux XDMCP server, Microsoft Terminal Server through RDP protocol, Citrix ICA server or VNC se

GTKTerm is a small graphical shell like XTerm. It provides serveral terminals in one window and some nice features. It´s available for GTK 2.x.

dtelnet: A Free Telnet Client for Windows 16/32/64 Emulates many terminal types 'linux,xterm,rxvt,konsole,vt100,vt320,vt420' (xterm[-256color] is the preferred), talks protocols 'telnet' and 'login'. Many customization options available.

Eterm is a color vt102 terminal emulator intended as an xterm replacement. It is designed with a Freedom of Choice philosophy, leaving as much power, flexibility, and freedom as possible in the hands of the user.

xrootconsole tails a file in a window on your X11 root window. It aims to be as simple and resource-light as possible, within reason: it should run smootlhy on a P133 laptop. The program is non-interactive; all configuration is done on the command line.

LCXterm is a ncurses-based terminal emulator that brings additional conveniences to the raw Linux console and other terminals. LCXterm can: enable GPM mouse to work through a network connection; speed up the console significantly; provide a long and persistent scrollback; transfer files via Xmodem, Ymodem, Zmodem, and Kermit; provide user-defined function key macros; and many more.

A new system shell, which is (in some regards) stronger than even Windows Command prompt, made in pure C. This terminal is fairly new, and doesn't require any complex installing process. You just download it, and then immediately use it! HTerminal has an improved console interface with modern buttons. It only has 28 commands, but it is useful none the less! And, if you're already reading this, then why not give it a try? It is completely free and takes up less than 1 MB of space + you don't even have to install it. It is ready to be used the second you download it! And, worst case scenario, you just stop using it. And if you enjoy our app, give it a rating, and maybe tell us about newly discovered bugs! It is much appreciated because it gives feedback that helps us improve HTerminal for you.

Twin is a text-mode window environment. It supports mouse and multiple windows, has a built-in terminal emulator and window manager, and can serve as display for client applications. Its retro look-and-feel comes with very modern features: it is best described as a VNC-like server, that can use a variety of displays - all with mouse support: from a plain text terminal, to a Linux console, to a full kde, gnome or X11 desktop. Source code hosted at https://github.com/cosmos72/twin

ROTE is a simple C library for VT102 terminal emulation. It allows the programmer to set up virtual 'screens' and send them data. They will emulate the behavior of a VT102 terminal, interpreting escape sequences, control characters and such.

This is a final-year programming project aimed to build a terminal emulator for Videotex (Viewdata) over a 2400 baud dial-up modem connection. This project won a little award from Hong Kong Computer Society. Borland's Turbo C for DOS 2.0 was the programming tool.