• PuTTY (the Telnet and SSH client itself)
• PSCP (an SCP client, i.e. command-line secure file copy)
• PSFTP (an SFTP client, i.e. general file transfer sessions much like FTP)
• PuTTYtel (a Telnet-only client)
• Plink (a command-line interface to the PuTTY back ends)
• Pageant (an SSH authentication agent for PuTTY, PSCP and Plink)
• PuTTYgen (an RSA key generation utility).

LEGAL WARNING: Use of PuTTY, PSCP, PSFTP and Plink is illegal in countries where encryption is outlawed. I believe it is legal to use PuTTY, PSCP, PSFTP and Plink in England and many other countries, but I am not a lawyer and so if in doubt you should seek legal advice before downloading it. You may find this site useful (it's a survey of cryptography laws in many countries) but I can't vouch for its correctness.

Use of the Telnet-only binary (PuTTYtel) is unrestricted by any cryptography laws.

The files we offer below are cryptographically signed. We also supply cryptographically signed lists of MD5 checksums. To download our public keys and find out more about our signature policy, visit the Keys page. If you need a Windows program to compute MD5 checksums, you could try the one at this site, or this site (although beware that those programs themselves are not signed, so if you're really paranoid you still can't be 100% sure!).

The latest release version. This will generally be a version I think is reasonably likely to work well. If you have a problem with the release version, it might be worth trying out the latest development snapshot (below) to see if I've already fixed the bug, before reporting it to me.

The latest development snapshot. This will be built every day, automatically, from the current development code - in whatever state it's currently in. If you need a fix for a particularly crippling bug, you may well be able to find a fixed PuTTY here well before the fix makes it into the release version above. On the other hand, these snapshots might sometimes be unstable.