Apps similar to Tabby include PuTTY, which is free and open source. Other options are Ghostty, Termux, Windows Terminal and PowerShell. Terminal Emulators like Tabby are a crowded field, with more than 100 alternatives for Linux, Mac, Windows, Android and iPhone.
A fast, modern SSH client. Download free, then unlock Pro forever with a single one-time purchase — no subscription, no account, no cloud, and your keys and passwords never leave your device.
Maldives
svte is a terminal that is flexible and has a small codebase. Its aim is to be lightweight and fast, while providing nice integration with a modern Linux environment. svte is yet another minimal GTK incarnation of VTE. svte is an alternative to Sakura, Lilyterm, etc.
Android-Terminal-Emulator - A VT-100 terminal emulator for the Android OS.
United States
mRemoteNC is the next stage of mRemote development. mRemote is a full-featured, multi-tab remote connections manager.
Auto/Shell is a tool for system administrators who want to monitor servers wherever they are in the world. The app lets you add as many servers as you want, and for each one specify a set of commands you want to run over SSH.
TEXTREME is a lively, animated text editor with the feel of a retro videogame complete with sounds and game-like visual effects. The screen shakes as you type while particle effects decorate new characters.
csshX is a tool to allow simultaneous control of multiple SSH sessions. It will attempt to create an SSH session to each remote host in separate Terminal.app windows. A master window will also be created. All keyboard input in the master will be sent to all the slave windows.
Australia
SmartPack-Kernel Manager is a heavily modified version of Kernel Adiutor developed by Willi Ye. All the credits go to the original developer, not only for his hard work on Kernel Adiutor, but also for being open to open-source community.
Ghostly Bridge is a lightweight Windows tray app to manage servers and expose local apps instantly. Access UpCloud, DigitalOcean, and your own machines from one place.
Austria
EU
Secure credential manager for SSH, RDP, VNC, Telnet, Serial, FTP, and SFTP providing tabbed sessions, side-by-side SFTP, split view, ProxyJump, port forwarding, broadcast keystrokes, import tools, offline local or cloud storage, and role-based access.
Georgia
Oxide Terminal is a native macOS and Linux terminal emulator, written entirely in Rust. GPU-rendered on GPUI, with a file-tree drawer you drive like vim and a status bar that knows where your shell is.
United States
A free, open-source SSH client with SFTP, remote desktop, port tunneling and built-in database tools, for Windows, macOS, Linux and Android.
GermanyEU
