Software · Networking & admin

PuTTY

PuTTY is a terminal emulator, available on Windows and Linux.

Completely free
Windows and Linux
Open source
No account

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Geographic availability: No geographic restriction found in our sources; availability is not checked country by country.

Technical details

Pricing: Completely freeconfirmed by Flathub, Winget (Windows Package Manager)
License: MIT — Open source (permissive)confirmed by Flathub, Winget (Windows Package Manager), Comptoir du Libre
Open source: Yes
Commercial use: Yesconfirmed by Official plan pages (pricing, licence, terms), Flathub, Winget (Windows Package Manager)
Account required: Noconfirmed by Winget (Windows Package Manager)
Credit card required: Noconfirmed by Flathub, Winget (Windows Package Manager)
Watermark: Not applicable
Ads: not documented
Platforms: Windows and LinuxEstablished by Linux: Flathub · Windows: Winget
Publisher: Simon Tatham
Latest version: 0.85 (16 August 2026)
Latest activity: 2 September 2026
Source code: git.tartarus.org/?p=simon/putty.git

Overview

PuTTY is a terminal emulator, available on Windows and Linux.

Services and protocols mentioned: SSH.

Overview written by LicitPro from the documentation published by the authors and the cited sources; we have not tried the resource ourselves.

Excerpts that establish this information

“A free implementation of SSH and Telnet for Windows and Unix platforms, along with an xterm terminal emulator.” — Winget, 10 November 2026

At a glance

All of PuTTY is free: no feature is locked behind a paid plan, and its code is open.

Its licence (MIT) is a permissive open source licence: use, modification and redistribution are allowed, including in commercial projects.

Strengths

Open source code
No account needed
Commercial use allowed

About

Putty is a SSH, Telnet & Rlogin client - this time for Linux.

Description from Flathub — AppStream (Flathub)

Sources and checks

Facts collected from Official plan pages (pricing, licence, terms) (commercial use) — 7 November 2026
Facts collected from Flathub (credit card, publisher, licence, free status, platforms, commercial use, version) — 6 November 2026
Facts collected from Winget (Windows Package Manager) (credit card, account, publisher, licence, free status, platforms, commercial use, version) — 6 November 2026
Facts collected from Comptoir du Libre (source code, licence) — 6 November 2026
Last technical check: 6 November 2026
Description from Flathub — AppStream (Flathub)

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