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KiTTY vs Bitvise SSH Client: catalog facts
KiTTY	Bitvise SSH Client
Free Free and open source under the MIT licence, like PuTTY.	Free Free to download and use.
Windows	Windows
Session filter and launcher, which PuTTY still does not have Automatic login and command scripts per session	Terminal and graphical SFTP in one app Flexible port forwarding and tunnelling
Windows only Last release was September 2023, and it is based on PuTTY 0.76	Windows only Closed source
Downloadable app	Downloadable app
Open source	Closed source
License: MIT	License not stated
No account needed	No account needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked September 21, 2026	Official website Full listing and sources Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.