Compare software

PuTTY vs WinCrypt SSH Agent: catalog facts
PuTTY	WinCrypt SSH Agent
Free Free and open source under the MIT licence.	Free Free and open source under the Apache-2.0 licence.
Windows, Linux, macOS	Windows
One small executable that runs without installation A full suite: PSCP and PSFTP for files, Plink for scripts, Pageant as a key agent	Uses keys from the Windows Certificate Store Works with YubiKeys and other smart cards for SSH
The interface shows its age next to modern terminals There is no Mac port from the project; the Unix build is X11-based	Windows only Infrequent updates, last commit in 2024
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License: Apache-2.0
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 20, 2026	Official website Full listing and sources Checked October 2, 2026

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