Kisssoft Student Version __link__ -

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This page contains download links for PuTTY release 0.81.

0.81, released on 2024-04-15, is not the latest release. See the Latest Release page for the most up-to-date release (currently 0.83).

Past releases of PuTTY are versions we thought were reasonably likely to work well, at the time they were released. However, later releases will almost always have fixed bugs and/or added new features. If you have a problem with this release, please try the latest release, to see if the problem has already been fixed.

Package files

You probably want one of these. They include versions of all the PuTTY utilities (except the new and slightly experimental Windows pterm).

(You probably want the 64-bit x86 version. The 32-bit version is only for backward compatibility with very old PCs / versions of Windows.)

MSI (‘Windows Installer’)
64-bit x86: putty-64bit-0.81-installer.msi (signature)
64-bit Arm: putty-arm64-0.81-installer.msi (signature)
32-bit x86: putty-0.81-installer.msi (signature)
Unix source archive
.tar.gz: putty-0.81.tar.gz (signature)

Alternative binary files

A 30-day "Test version" is available, which provides full functionality but reverts to a restricted "Demo mode" after 30 days. 4. Differences: Student Version vs. Demo Version

Graduating with KISSsoft knowledge is a strategic advantage. Many companies that purchase a commercial license will pay for your certification exam. At most engineering job fairs, you can say:

If you are a mechanical engineering student working on gear design, transmission systems, or shaft calculations, you have likely heard of . It is the industry standard for sizing and optimizing machine elements.

Documentation

Browse the documentation on the web
HTML: Contents page
Downloadable documentation
Zipped HTML: puttydoc.zip
Plain text: puttydoc.txt
Windows HTML Help: putty.chm

Source code

Unix source archive
.tar.gz: putty-0.81.tar.gz (signature)
Windows source archive
.zip: putty-src.zip (signature)
git repository
Clone: https://git.tartarus.org/simon/putty.git
gitweb: main | 0.81 release tag

Downloads for 32-bit Windows on Arm

Kisssoft Student Version __link__ -

A 30-day "Test version" is available, which provides full functionality but reverts to a restricted "Demo mode" after 30 days. 4. Differences: Student Version vs. Demo Version

Graduating with KISSsoft knowledge is a strategic advantage. Many companies that purchase a commercial license will pay for your certification exam. At most engineering job fairs, you can say: kisssoft student version

If you are a mechanical engineering student working on gear design, transmission systems, or shaft calculations, you have likely heard of . It is the industry standard for sizing and optimizing machine elements. A 30-day "Test version" is available, which provides

Checksum files

Cryptographic checksums for all the above files
MD5: md5sums (signature)
SHA-1: sha1sums (signature)
SHA-256: sha256sums (signature)
SHA-512: sha512sums (signature)

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(last modified on Sun Jan 11 00:43:18 2026)