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This package was approved as a trusted package on 5/27/2019.

SSL encryption wrapper between remote client and local (inetd-startable) or remote server. It can be used to add SSL functionality to commonly used inetd daemons like POP2, POP3, and IMAP servers without any changes in the programs' code. It will negotiate an SSL connection using the OpenSSL or SSLeay libraries. It calls the underlying crypto libraries, so stunnel supports whatever cryptographic algorithms you compiled into your crypto package. Written in C.


To install stunnel, run the following command from the command line or from PowerShell:

C:\> choco install stunnel

To upgrade stunnel, run the following command from the command line or from PowerShell:

C:\> choco upgrade stunnel


  • tools\chocolateyInstall.ps1 Show
    $packageName = 'stunnel'
    $url = ''
    $checksum = '4099650ae7be17b81412a0d4caa91db19c8678c8d8d2975398814e583f4c51aa'
    $checksumType = 'sha256'
    $installerType = 'exe'
    $silentArgs = '/S'
    $validExitCodes = @(0)
    Install-ChocolateyPackage -PackageName "$packageName" `
                              -FileType "$installerType" `
                              -SilentArgs "$silentArgs" `
                              -Url "$url" `
                              -ValidExitCodes $validExitCodes `
                              -Checksum "$checksum" `
                              -ChecksumType "$checksumType"
  • tools\chocolateyUninstall.ps1 Show
    $packageName = 'stunnel'
    $packageSearch = "$packageName*"
    $installerType = 'exe'
    $silentArgs = '/S'
    $validExitCodes = @(0)
    $key = Get-ItemProperty -Path @( 'HKLM:\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\*',
                                     'HKCU:\Software\Microsoft\Windows\CurrentVersion\Uninstall\*' ) `
                            -ErrorAction:SilentlyContinue `
         | Where-Object   { $_.DisplayName -like $packageSearch }
    $key | ForEach-Object { 
             $unFile = $_.UninstallString -replace "^`"?([^`"]+).*","`$1"
             Uninstall-ChocolateyPackage -PackageName "$packageName" `
                                         -FileType "$installerType" `
                                         -SilentArgs "$silentArgs" `
                                         -File "$unFile" `
                                         -ValidExitCodes $validExitCodes }

Virus Scan Results

In cases where actual malware is found, the packages are subject to removal. Software sometimes has false positives. Moderators do not necessarily validate the safety of the underlying software, only that a package retrieves software from the official distribution point and/or validate embedded software against official distribution point (where distribution rights allow redistribution).

Chocolatey Pro provides runtime protection from possible malware.


This package has no dependencies.

Package Maintainer(s)

Software Author(s)

  • Michal Trojnara


Copyright © 1998 Michal Trojnara


Release Notes



  • Automatically built and uploaded by dtgm

Version History

Version Downloads Last updated Status
stunnel 5.38 1075 Friday, December 2, 2016 approved
stunnel 5.37 230 Tuesday, November 8, 2016 approved
stunnel 5.36 258 Thursday, October 20, 2016 approved
stunnel 5.35 573 Wednesday, July 20, 2016 approved
stunnel 5.34 232 Wednesday, July 6, 2016 approved
stunnel 5.32 229 Friday, June 24, 2016 approved
stunnel 5.31 209 Friday, June 24, 2016 approved
stunnel 304 Tuesday, February 23, 2016 approved
stunnel 5.30 232 Monday, February 1, 2016 approved
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Discussion for the stunnel Package

Ground rules:

  • This discussion is only about stunnel and the stunnel package. If you have feedback for Chocolatey, please contact the google group.
  • This discussion will carry over multiple versions. If you have a comment about a particular version, please note that in your comments.
  • The maintainers of this Chocolatey Package will be notified about new comments that are posted to this Disqus thread, however, it is NOT a guarantee that you will get a response. If you do not hear back from the maintainers after posting a message below, please follow up by using the link on the left side of this page or follow this link to contact maintainers. If you still hear nothing back, please follow the package triage process.
  • Tell us what you love about the package or stunnel, or tell us what needs improvement.
  • Share your experiences with the package, or extra configuration or gotchas that you've found.
  • If you use a url, the comment will be flagged for moderation until you've been whitelisted. Disqus moderated comments are approved on a weekly schedule if not sooner. It could take between 1-5 days for your comment to show up.

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