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Solar-PuTTY vs PuTTY: catalog facts
Solar-PuTTY	PuTTY
Free Free to download and use.	Free Free and open source under the MIT licence.
Windows	Windows, Linux, macOS
Tabbed interface for many sessions at once Saved credentials and private keys for auto-login	One small executable that runs without installation A full suite: PSCP and PSFTP for files, Plink for scripts, Pageant as a key agent
Windows only Closed source, from a vendor that uses it to promote paid monitoring products	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
Closed source	Open source
License not stated	License: MIT
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 20, 2026

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