The best open source alternative to PuTTY is KiTTY. If that doesn't suit you, our users have ranked more than 100 alternatives to PuTTY and loads of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to PuTTY are OpenSSH, Tabby, Termux and mRemoteNG.
KiTTY is an opensource terminal emulator, forked from PuTTY , that adds many extra features to the original software.
No updates since Sep 17, 2023
It's pretty much stock Putty, but upgraded to modern standards.
Fork of putty. But more recently updated and fresher.
OpenSSH is a free version of the SSH connectivity tools that technical users rely on. OpenSSH encrypts all traffic (including passwords) to effectively eliminate eavesdropping, connection hijacking, and other attacks.
Up to date. One of the most trustworthy dev teams on the intenet.
There is no gui for connection management.
It's not terminal emulator, it's a utility to ssh'd to other mechine.
Tabby is an infinitely customizable cross-platform terminal app for local shells, serial, SSH and Telnet connections.
I think Tabby is overall easier and more smoother to work with. Specially since you get tabs, themes etc. If you just want to ssh into this than that I don't know why you wouldn't switch to tabby.
Experience a powerful Unix terminal on Android without the need for rooting. Customize with packages via Apt, run command-line tools, SSH, and program in C, Python, and more. Enjoy a full Unix environment with bash, zsh, mouse support, and external display compatibility.
Manage remote connections efficiently with this open-source tool, featuring a tabbed interface supporting RDP, VNC, SSH, Telnet, HTTP, and more protocols, without any ads.
last update 7 years ago !
If multiwindow (think 10+ ssh sessions at a time) is your thing this is the best alternative by far -- as a Linux admin and typically on 25+ servers at a crack this free app managed all servers no sweat.
Free with premium features
PowerShell (including Windows PowerShell and PowerShell Core) is a task automation and configuration management framework from Microsoft, consisting of a command-line shell and associated scripting language built on the .NET Framework.
Since recently Microsoft has integrates OpenSSH in Windows 10 natively, so PowerShell (and Windows terminal) may now connect to SSH hosts from the command line, as you would do from LINUX or OS/X. PuTTY however has many more functions.
PuTTY is for remote terminal access, via SSH, Telnet, serial, etc.. Powershell is a shell for scripting not SSH or Telent access.
as stated by others here PuTTY is a TTY/network serial control application, and PowerShell is a local "terminal-like" application with no remote/TTY capabilities. there is no similarity here
ReTerminal is a sleek, Material 3-inspired terminal emulator designed as a modern alternative to the legacy Jackpal Terminal. Built on Termux's robust TerminalView.
ConnectBot is a Secure Shell client for the Android platform. Its ultimate goal is to create a secure connection through which you can use a shell on a remote machine and transfer files back and forth to your phone.
Lightweight all-in-one terminal with over 20 protocols including SSH, RDP, SFTP, and databases, featuring an autonomous AI agent for multi-round shell commands, advanced file transfer, real-time server monitoring, split panes, cloud sync, and multilingual support.
Termora is developed using Kotlin/JVM and partially implements the XTerm protocol (with ongoing improvements). Its ultimate vision is to achieve full platform support (including Android, iOS, and iPadOS) through Kotlin Multiplatform.
PuTTY Tray is an improved version of PuTTY. It features a number of addons to make it more useful and much more fun to use.
Useful improvements through the system tray icon.
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It's a more actively developed fork.