PuTTY for Windows: Download the Free SSH Client
PuTTY 0.85 · for Windows and Linux
Developer: Simon Tatham (opens in a new tab)
- Windows
- Linux
The download link points to the program’s official source; the file is not hosted on this site. Link address: chiark.greenend.org.uk
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PuTTY is a free, open-source SSH and Telnet client written by Simon Tatham. The latest release is 0.85, published on August 16, 2026, with installers for 64-bit x86, 64-bit Arm and 32-bit Windows.
Managing a Linux server, a Raspberry Pi or a network switch usually means opening a remote terminal. PuTTY has been the go-to SSH client on Windows for many years: it is small, quick and does exactly what it says.
What’s included?
- PuTTY: The main SSH, Telnet, rlogin and serial console client.
- PuTTYgen: Creates SSH key pairs so you can log in without typing a password.
- Pageant: An SSH agent that keeps your keys loaded during a session.
- PSCP and PSFTP: Command-line tools for copying files over SSH.
Choosing the right MSI
- Simon Tatham’s “latest release” page lists several installers.
- Most PCs need the 64-bit x86 MSI installer; choose the 64-bit Arm one for Arm-based Windows laptops.
- Run the installer, then open PuTTY, type the server’s host name or IP address, leave the port at 22 and click Open.
Good to know
The first time you connect to a server, PuTTY shows its host key fingerprint. Compare it with the fingerprint your server administrator gave you before accepting it. PuTTY’s official home is on chiark.greenend.org.uk; other sites that use the name are not run by the developers.
Pros
- Small and fast
- Includes key generator, SSH agent and file transfer tools
- Free for commercial use
Cons
- Settings dialog looks old-fashioned
- No tabs for multiple sessions
Frequently Asked Questions
Can I use PuTTY at work?
Yes. PuTTY is open source under the MIT license, which allows personal and commercial use.
Which PuTTY installer should I download?
Most Windows PCs need the 64-bit x86 MSI. Choose the 64-bit Arm MSI for Arm-based Windows devices, and the 32-bit one only for old 32-bit systems.
PuTTYOpen source
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