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PuTTY 0.75 on 32-bit and 64-bit PCs. This download is licensed as freeware for the Windows (32-bit and 64-bit) operating system on a laptop or desktop PC from ssh/telnet clients without restrictions. PuTTY 0.75 is available to all software users as a free download for Windows. As an open source project, you are free to view the source code. MTPuTTY (Multi-Tabbed PuTTY) PuTTY is the most popular SSH client for Windows. One, and probably the only one, of PuTTY drawbacks is that you need to start a new copy of PuTTY every time you open a new connection. So if you need e.g. 5 active connections you run 5 PuTTY instances and you have 5 PuTTY windows on the desktop.

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PuTTY is a free implementation of SSH and Telnet for Windows and Unixplatforms, along with an xterm terminal emulator. It iswritten and maintained primarily bySimon Tatham.

Putty Install Full Version Free Download

The latest version is 0.75.Download it here.

LEGAL WARNING:Use of PuTTY, PSCP, PSFTP and Plink is illegal in countries whereencryption is outlawed. We believe it is legal to use PuTTY, PSCP,PSFTP and Plink in England and Wales and in many other countries, butwe are not lawyers, and so if in doubt you should seek legal advicebefore downloading it. You may find useful information atcryptolaw.org, which collectsinformation on cryptography laws in many countries, but wecan't vouch for its correctness.

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

Latest news

2021-06-13 Pre-releases of 0.76 now available

We're working towards a 0.76 release. Pre-release builds are available, and we'd appreciate people testingthem and reporting any issues.

0.76 will be a pure bug-fix release, fixing a few high-impact bugsthat appeared as a result of all of 0.75's new features. Inparticular, 0.76 fixes the crash when you enable the 'Use systemcolours' setting on Windows PuTTY.

2021-05-28 Cloudflare public DNS blocking PuTTY downloads

If you use some of Cloudflare's public DNS resolvers ( or1.1.1.3), you may find you can't download PuTTY at the moment.

The server that hosts the release files, the.earth.li, hasbeen blockedsince at least 22 May. We don't know why; Cloudflare's owncategorisationof the site does not currently include any 'security threat' tags.

If you're currently having trouble downloading PuTTY, check what DNSresolver you're using. If it's one of these, we suggest you use adifferent one.

2021-05-08 PuTTY 0.75 released

PuTTY 0.75, released today, provides major new features: deferred keydecryption in Pageant, more secure SSH key fingerprints and SSHprivate key files, and some new network protocols for specialpurposes.

0.75 also contains a fix for a DoS vulnerability in the Windowsterminal emulator, which allowed a malicious server to lock up all GUIWindows applications running on the client.

2021-04-18 Pre-releases of 0.75 now available

We're working towards a 0.75 release. Pre-release builds are available, and we'd appreciate people testingthem and reporting any issues.

0.75 will be a feature release. The biggest changes all relate toPageant and/or SSH public keys. User-visible behaviour changes include:

  • Pageant now allows you to load a key without decrypting it, inwhich case it will wait until you first use it to ask for thepassphrase.
  • We've switched to the modern OpenSSH-style SHA-256 style of keyfingerprint.
Back-end changes that affect compatibility:
  • We've added support for the rsa-sha2-256 andrsa-sha2-512 signature methods, which some servers nowrequire in order to use RSA keys.
  • We've introduced a new version of the PPK format for private keyfiles, to remove weak crypto and improve password-guessingresistance.
  • We've introduced a new method for applications to talk to Pageanton Windows, based on the same named-pipe system used by connectionsharing instead of window messages.

2020-11-22 Primary git branch renamed

The primary branch in the PuTTY git repository is now called main,instead of git's default of master. For now, both branch namescontinue to exist, and are kept automatically in sync by a symbolic-ref on theserver. In a few months' time, the alias master will be withdrawn.

To update a normal downstream clone or checkout to use the new branch name, youcan run commands such as ‘git branch -m master main’ followed by‘git branch -u origin/main main’.

2020-06-27 PuTTY 0.74 released

PuTTY 0.74, released today, is a bug-fix and security release. Itfixes bugs in 0.73, including one possible vulnerability, and alsoadds anew configuration optionto mitigate a minor information leak in SSH host key policy.

2019-09-29 PuTTY 0.73 released

PuTTY 0.73, released today, is a bug-fix release. It fixes a small number of bugs since 0.72, and a couple of them have potential security implications.

2019-07-20 PuTTY 0.72 released

PuTTY 0.72, released today, is a bug-fix release. It fixes a smallnumber of further security issues found by the 2019 EU-fundedHackerOne bug bounty, and a variety of other bugs introduced in 0.71.

2019-07-08 Bug bounty concluded

The EU-funded bug bounty programme is now closed. Many thanks toeverybody who sent in reports!

Anyone with a vulnerability to report should now go back to reportingit in the old way, via email to the PuTTY team, as described on theFeedback page.If you think it needs to be reported confidentially, encrypt it withour Secure Contact Key.

2019-03-25 Bug bounty continuesInstall dragon free.

This year's EU-funded bug bounty programme is stillrunning. It was originally scheduled to end on 7th March, butthere was money left over in the budget. So while that money lasts,you still have a chance to earn some by finding vulnerabilities inPuTTY 0.71 or the development snapshots!

As before, vulnerabilities should be reported through theHackerOne web sitein order to qualify for a bounty: if you send reports directly to thePuTTY team in the usual way, then we'll still fix them, but we can'tprovide money for them.

2019-03-16 PuTTY 0.71 released

PuTTY 0.71, released today, includes a large number of security fixes,many of which were found by the recent EU-funded HackerOne bug bounty.There are also other security enhancements (side-channel resistance),and a few new features.It's also the first release to be built for Windows on Arm.

2019-01-18 EU bug bounty for finding vulnerabilities in PuTTY

From now until 7th March, you can earn money by reporting securityvulnerabilities in PuTTY!

HackerOne is running a bugbounty programme for PuTTY, funded by the European Union as partof the ‘Free and Open Source Software Audit’ project(EU-FOSSA 2). If you report a vulnerability through their web site, itmay qualify for a bounty. (The exact amount will depend on how seriousthe problem is, and there's also a bonus for providing a patch thatfixes it.)

For more details, or if you have something to report, see the linkabove.

(Please note that HackerOne will only consider vulnerabilitiesreported to them. If you send a report directly to the PuTTYteam in the usual way, then of course we'll still fix it, but we can'talso arrange for you to get paid.)

2018-08-25 GPG key rollover

This week we've generated a fresh set of GPG keys for signing PuTTYrelease and snapshot builds. We will begin signing snapshots with thenew snapshot key, and future releases with the new release key. Thenew master key is signed with the old master keys, of course. Seethe keys page for more information.

2017-07-08 PuTTY 0.70 released, containing security and bug fixes

PuTTY 0.70, released today, fixes further problems with Windows DLLhijacking, and also fixes a small number of bugs in 0.69, includingbroken printing support and Unicode keyboard input on Windows.

Site map

  • Licence conditions under which you mayuse PuTTY.
  • The FAQ.
  • The documentation.
  • Download PuTTY:
    • latest release 0.75
    • pre-releases of 0.76

  • Subscribe to the PuTTY-announcemailing list to be notified of new releases.
  • Feedback and bug reporting: contactaddress and guidelines. Please read the guidelines beforesending us mail; we get a very large amount of mail and it will helpus answer you more quickly.
  • Changes in recent releases.
  • Wish list and list of known bugs.
  • Links to related software andspecifications elsewhere.
  • A page about the PuTTY team members.
If you want to comment on this web site, see theFeedback page.
(last modified on Sun Jun 13 10:27:51 2021)

PuTTY is by far the most lightweight and handy SSH client available for free. As a freeware application, it is also extremely portable. It includes an Xterm terminal emulator.

Options for this excellent client include SSH authentication options including cipher control, general TCP/IP settings and more. These options can be saved for future connections as a saved session. The display of the terminal window can be customized in several aspects like the color and font, number of lines of history to save in a current session, selection options and more.

The main settings window for PuTTY include a number of useful options like terminal size (columns and rows), support for resizing terminal window, custom sounds and control of cursor selection like copy and paste with mouse clicks. The client supports all types of standard encryption keys, secure FTP and SCP and X11 forwarding. Additionally, it supports both IPv4 and IPv6 protocols.

It comes with support for Raw, Telnet, Rlogin, SSH and Serial connection types with support for custom, non-standard ports.

PuTTY is highly recommended for any administrator or anybody who needs an SSH or Telnet client quick. It supports both SSH, SSH2 and an impressive list of other protocols which makes it a must-have for anybody needed to interact with remote systems be it Linux, BSD or even with other devices connected to a network like an Android phone.

PuTTY 0.75 on 32-bit and 64-bit PCs

This download is licensed as freeware for the Windows (32-bit and 64-bit) operating system on a laptop or desktop PC from ssh/telnet clients without restrictions. PuTTY 0.75 is available to all software users as a free download for Windows. As an open source project, you are free to view the source code and distribute this software application freely.

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