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WindTerm vs Solar-PuTTY: catalog facts
WindTerm	Solar-PuTTY
Free The author states WindTerm is completely free for commercial and non-commercial use…	Free Free to download and use.
Windows, macOS, Linux	Windows
SSH v2, SFTP, telnet, raw TCP, serial and tmux in one native client Free for commercial use with no seat or session limits	Tabbed interface for many sessions at once Saved credentials and private keys for auto-login
Only part of the source is published, so it is not fully open source The last release was in March 2025 and the repository has been quiet since	Windows only Closed source, from a vendor that uses it to promote paid monitoring products
Downloadable app	Downloadable app
Closed source	Closed source
License: Apache-2.0	License not stated
No account needed	Not stated if an account is 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.