JediTerm
JediTerm is a pure Java terminal widget designed to be easily embedded into an IDE. It supports terminal sessions for both SSH connections and local PTY on Mac OS X, Linux, and Windows. It is used by JetBrains IDEs such as PyCharm, IDEA, PhpStorm, WebStorm, AppCode, CLion, and Rider. Since version 2.5, JediTerm also provides a standalone terminal version distributed for Mac OS X. The name JediTerm comes from J for Java, “edi” as IDE reversed, and Term from terminal, while “Jedi” itself adds confidence and hope in the universe of thousands of different terminal implementations. The standalone JediTerm terminal can be run from sources by executing jediterm.sh or jediterm.bat. Gradle is used to build the project, which includes a terminal core library that provides a VT100-compatible terminal emulator and a Java Swing-based implementation of the terminal panel UI. It also includes a PTY library that uses Pty4J to enable local PTY terminal sessions.
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PuTTY
PuTTY is a free implementation of SSH and Telnet for Windows and Unix platforms, along with an xterm terminal emulator. PuTTY is a client program for the SSH, Telnet, Rlogin, and SUPDUP network protocols. These protocols are all used to run a remote session on a computer, over a network. PuTTY implements the client end of that session, the end at which the session is displayed, rather than the end at which it runs. In really simple terms, you run PuTTY on a Windows machine, and tell it to connect to (for example) a Unix machine. PuTTY opens a window. Then, anything you type into that window is sent straight to the Unix machine, and everything the Unix machine sends back is displayed in the window. So you can work on the Unix machine as if you were sitting at its console, while actually sitting somewhere else. All of PuTTY's settings can be saved in named session profiles. You can also change the default settings that are used for new sessions.
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Alacritty
Alacritty is a modern, cross-platform terminal emulator powered by OpenGL that delivers GPU-accelerated performance with sensible defaults and extensive configuration. Rather than reimplementing functionality, it integrates seamlessly with other applications to provide a flexible feature set without sacrificing speed. Supported on BSD, Linux, macOS, and Windows, Alacritty is considered beta and still under active development, yet it already serves many users as their daily driver terminal. Key features include Vi Mode for moving around and creating selections using vi bindings; a Search function for querying text within the scrollback buffer; Regex Hints that mark patterns for mouse or keyboard interaction; and Multi-Window support to improve resource usage by running on a single process.
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Ghostty
Ghostty is a fast, feature-rich, cross-platform terminal emulator that uses platform-native UI and GPU acceleration to deliver speed, features, and familiarity without compromise. Ghostty provides fully standards-compliant emulation, drawing on ECMA-48 and xterm conventions, to ensure compatibility with existing shells and software, while its multi-renderer architecture leverages OpenGL (with ligature support) to sustain smooth rendering up to 60 fps under heavy load and minimal I/O jitter via a dedicated I/O thread. It offers modern windowing capabilities such as multi-window, tabbing, and splits, and embraces native platform experiences through SwiftUI and GTK4, all built atop a shared core written in Zig (“libghostty”) that can be embedded via a C API. Users benefit from basic customizability (fonts, backgrounds, colors), an opt-in feature set for interactive CLI tools, and performance competitive with leading terminal emulators.
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