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PuTTY Recorded Package Source

Direct package links and installation notes for Windows

Developer Tools · v0.85 · Free (MIT)

Free SSH and Telnet client for Windows

Source record, not a product review. Automated checks can confirm URL availability but not package safety, installation behavior, or offline operation. Catalog maintained by .
License: Free (MIT)
Size: 3 MB
Platforms: Windows

Download summary

PuTTY is a developer tool for Windows, published by Simon Tatham. A direct package URL is recorded below. The host may be the publisher, a release repository, a CDN, or another distribution source documented by the publisher. Some packages still fetch optional components during setup. The recorded publisher site is chiark.greenend.org.uk. We do not host or modify installer files.

Sources and identity

External references used to identify the product and publisher. These links do not prove that we installed the package.

Wikipedia article

Publisher documentation

These references support the package and behavior notes. Documentation checks are separate from the recorded URL-check date and do not represent an installation test.

Choose a package

MSI suite

Choose the MSI when you want the PuTTY tools installed through Windows Installer.

Check the x64 architecture against the destination machine. Installing the tools does not supply server access, credentials or a trusted server fingerprint.

No-installer ZIP

Choose the ZIP when you need extracted tools without running the MSI installer.

PuTTY still stores saved sessions and host keys in the current user’s Registry by default. Copying or deleting the ZIP folder does not transfer or erase that configuration; private key files need separate handling.

Package guidance is based on the linked documentation, checked 11 September 2026. No installation test is claimed.

Download options

Recorded package links, store pages, and browser extensions where available.

Scroll the table sideways to compare packages and reach each download link.

Platform Build Architecture Package Action Notes
Windows

MSI

PuTTY MSI installer 64-bit

 64-bit MSI Download file Official PuTTY MSI installer
Windows

ZIP

PuTTY no-installer ZIP 64-bit

 64-bit ZIP Download file No-installer binaries; saved sessions and host keys still use the user Registry by default

Verification scope

A direct package URL is recorded above. We have not independently installed every listed build or confirmed that setup remains fully offline.

We do not host software files. Links may resolve to a publisher domain, its release repository, app store, CDN, or a documented distribution host — confirm the final hostname, publisher signature, version, and architecture before deployment. Recorded URLs last checked 30 August 2026; content last updated 11 September 2026.

What PuTTY does

PuTTY is an MIT-licensed Windows terminal and network-client suite supporting SSH, Telnet, Rlogin, raw TCP, and serial connections. The MSI installs the suite, including PuTTY, PSCP, PSFTP, Plink, Pageant, and PuTTYgen. The ZIP and individual executables avoid MSI installation, but calling them portable can be misleading: PuTTY saves sessions and known host keys in the current user's Windows Registry by default, while private-key files remain wherever the user stores them. Packaging and configuration persistence are separate concerns.

On a first SSH connection, PuTTY asks the user to verify and cache the server host key. An unexpected or changed key can indicate a rebuilt server or an interception attempt; administrators should compare the fingerprint through a trusted channel rather than automatically accepting it. Pageant holds unlocked keys for the user's session, so endpoint access and agent forwarding remain security boundaries. X11 forwarding also requires a separate local X server and appropriate remote configuration.

This record pins the 0.85 Windows x64 MSI and no-installer ZIP in PuTTY's versioned publisher directory. The project publishes SHA-256 and SHA-512 checksum lists and detached GPG signatures for the release; this audit did not independently verify those signatures or install the packages. Telnet, Rlogin, raw TCP, and serial transport do not acquire SSH's encryption merely because they are opened through PuTTY.

Try a practical task

Prepare an SSH session and verify server identity

Save a repeatable connection definition for a server you administer, while keeping host-key verification separate from password authentication.

Before you start

  • Obtain the hostname, port and SSH host-key fingerprint through your administrator’s trusted channel.
  • Connect only to a server you are authorised to use.

  1. Create the session

    In Session, enter the approved hostname and port and choose SSH. Leave unrelated proxy and forwarding settings unchanged.

  2. Save a useful name

    Enter a descriptive Saved Sessions name and save the connection settings. Do not embed a password in a session name or notes.

  3. Verify the host key

    Open the session and compare any displayed host-key fingerprint with the independently supplied value before accepting it. A mismatch is a stopping point.

  4. Confirm and exit

    After an authorised login, check that the server banner is expected, then log out. Reopen the saved session later rather than retyping an address from memory.

Expected result

A saved session points to the intended host, and its presented key has been checked through an independent trusted reference.

If the result is different

Connection refused
Confirm the port and whether SSH is running with the administrator; changing credentials will not fix a closed port.
The host key changed
Stop and verify an approved rotation or server replacement. Do not delete the cached key just to dismiss the warning.

Saving settings is not a credential vault or proof of server trust. Session, proxy and forwarding changes can affect security and require separate review.

Continue with the publisher’s instructions

Guide updated . Steps describe the linked documentation and our sample task. Only demonstrations with a stated environment record an observed run; this is not an installation test of every PuTTY package listed above.

Product features

  • SSH, Telnet, Rlogin, and raw serial terminal connections
  • Companion tools: PSCP, PSFTP, Plink, Pageant, and PuTTYgen
  • Saved sessions and host keys use the current user's Registry by default
  • Pageant holds unlocked keys in the user session; agent use needs endpoint review
  • MSI, ZIP, and individual EXE formats do not imply the same configuration-storage behavior

Installation notes

Grouped by the package types recorded on this page — not a claim that every listed build was independently tested on every supported platform.

Windows Windows archive (ZIP/7Z)

  1. 1

    Extract the recorded file (putty.zip) into a separate folder and check the publisher's instructions for the executable or setup program inside. ZIP/7Z describes compression, not installation behavior.

  2. 2

    A no-installer build may still store settings, credentials, caches, or Registry entries outside that folder. Check PuTTY's configuration and removal instructions before moving or deleting it.

Windows Windows installer (MSI)

  1. 1

    Download the recorded file (putty-64bit-0.85-installer.msi); MSI packages install through Windows Installer. Required privileges depend on the package's supported user or machine scope.

  2. 2

    Run it interactively, or deploy silently with msiexec /i and the vendor's documented properties for managed rollouts.

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