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Tabby vs PuTTY: catalog facts
Tabby	PuTTY
Free Free and open source under the MIT licence.	Free Free and open source under the MIT licence.
Windows, macOS, Linux	Windows, Linux, macOS
Local shells, SSH, Telnet and serial connections in one program Encrypted container for SSH secrets and configuration	One small executable that runs without installation A full suite: PSCP and PSFTP for files, Plink for scripts, Pageant as a key agent
Electron, so start-up and memory use are well above a native terminal The plugin ecosystem is small	The interface shows its age next to modern terminals There is no Mac port from the project; the Unix build is X11-based
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License: MIT
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 21, 2026	Official website Full listing and sources Checked September 20, 2026

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