A highly configurable cross-platform terminal emulator with integrated SSH and serial client capabilities.
Tabby (formerly Terminus) is a modern, cross-platform terminal emulator for Windows, macOS, and Linux that integrates local shells, SSH, Telnet, and serial connectivity into a single, feature-rich application. It aims to replace multiple standalone tools like Windows Terminal, PuTTY, and iTerm by providing a unified, configurable environment for managing both local and remote command-line sessions.
System administrators, DevOps engineers, and developers who regularly work with local terminals, remote servers via SSH/Telnet, and serial devices, and who prefer a single, integrated application over multiple specialized tools.
Developers choose Tabby for its all-in-one integration of terminal, SSH client, and serial terminal capabilities, its high degree of configurability and theming, and its extensible plugin system. It offers a polished, unified alternative to using separate applications like conhost/PowerShell ISE, PuTTY, and macOS Terminal.app.
A terminal for a more modern age
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Integrates local terminals, SSH client with X11/port forwarding and jump hosts, and serial terminal with saved connections, eliminating the need for separate tools like PuTTY or screen.
Offers theming, color schemes, configurable multi-chord shortcuts, split panes, and font ligatures, allowing deep personalization of the interface and workflow.
Runs on Windows, macOS, and Linux with portable app support, and includes a self-hostable web app for SSH, SFTP, and Telnet access from any browser.
Supports plugins for Docker integration, workspace management, config sync to Gist/Gitee, and AI capabilities via MCP, enabling functionality beyond core features.
The README explicitly states it is not lightweight and recommends alternatives like Conemu or Alacritty if RAM usage is a concern, due to its Electron-based architecture.
Compared to established terminals, the plugin list is modest with around 15 core plugins, and some may have limited maintenance or niche use cases.
For users who only need occasional SSH or a simple terminal, the extensive configuration options and integrated features can add unnecessary complexity and setup time.
Terminus is an open-source alternative to the following products:
PuTTY is a free and open-source terminal emulator, serial console, and network file transfer application supporting SSH, Telnet, and other protocols.
Terminal.app is the default terminal emulator included with macOS, providing command-line access to the Unix shell.
Windows Terminal is a modern, fast, and feature-rich terminal application for Windows that supports multiple tabs, panes, and command-line tools like PowerShell and WSL.
iTerm is a terminal emulator for macOS that provides features like split panes, search, autocomplete, and extensive customization options.
ConEmu is a Windows console emulator with tabs, splits, and customization options for command-line interfaces.