Minimum system requirements:
Windows XP or later
32MB RAM
200MHz CPU
30MB hard drive space
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Recommended system requirements:
Windows XP or later
128MB RAM
500MHz CPU
300MB hard drive space
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October 8, 2025 - OpenSSL 3.6 is available. Users should currently install a 3.x series and generally only need a Light edition. All application developers should have migrated their applications to use the OpenSSL 3.x series. Note that 3.5.x is a LTS release series while 3.6.x is not.
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April 9, 2025 - OpenSSL 3.5 is available. Users should currently install a 3.x series and generally only need a Light edition. All application developers should have migrated their applications to use the OpenSSL 3.x series. Note that 3.5.x is a LTS release series.
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October 22, 2024 - OpenSSL 3.4 is available. Users should currently install a 3.x series and generally only need a Light edition. All application developers should have migrated their applications to use the OpenSSL 3.x series. Note that 3.0.x is a LTS release series while 3.4.x is not.
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April 11, 2024 - OpenSSL 3.3 is available. Users should currently install a 3.x series and generally only need a Light edition. All application developers should have migrated their applications to use the OpenSSL 3.x series. Note that 3.0.x is a LTS release series while 3.3.x is not.
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November 30, 2023 - OpenSSL 3.2 is available. Users should currently install a 3.x series and generally only need a Light edition. All application developers should have migrated their applications to use the OpenSSL 3.x series. Note that 3.0.x is a LTS release series while 3.2.x is not.
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Latest installer cryptographic hashes - MD5, SHA-1, SHA-256, and SHA-512 available in JSON format. For those who are exceptionally needy. Now stop bothering me.
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The following things in red are the result of my in-box being inundated with requests that resulted in many facepalm moments. The intentionally satirical responses are placed here for your enjoyment and education.
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Whoever is bothering my ISP, stop it. The files on this page are 100% virus/malware free. Don't believe me? https://www.virustotal.com/ If you have a problem with something, contact me, not my ISP.
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Stop asking me for versions of OpenSSL that have security vulnerabilities in them! That would be any version of OpenSSL prior to the absolute latest build. This is a security product and yet people regularly ask me for a version with security vulnerabilities in it! Oh the irony. Please punch yourself in the face to knock some common sense into yourself. Thank you.
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August 15, 2024: "Hello, I am a Cybersecurity Analyst in our InfoSec dept. at our Random Insurance Co located in Florida. Attached is an Excel document with the standard security questionnaire that we require all software vendors to complete per insurance regulation. If you are not the correct person to handle this request, please forward it to the person who is." Oh I'm required to fill this out? Lemme just go ahead and open up this random attachment from Florida Man in my email. Nothing could ever go wrong with that. By the way, the word 'cyber' is always cringe.
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June 17, 2015 at some ungodly hour of the morning I received this gem (get ready to facepalm hard): "Hi, We use Openssl0.9.5a with Windows Server 2008 edition. [Mind you, 0.9.5a was originally released on April 3, 2000 with 6 major releases and countless security vulnerabilities patched in the 15 years that have passed since that release. But wait, it gets better...] Does Openssl0.9.5a works with Windows Server 2012? Also what is the stable production version that can be used for Windows Server 2012? Help is highly appreciated." Wow.
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"Do you partner with resellers? If so, I'd like to request a quote for qty. one of Win32 OpenSSL [outdated, insecure version goes here]." I have nothing polite to say to you. Please tell your customer that they are dingbats. And if you are the customer making this request to a third-party software acquisition firm, please first learn how to read (see above regarding outdated versions). Then change your software acquisition process to be infinitely less asinine since it probably involves deep-frying the software that you acquire in bacon fat before delivery to your company's machines.
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"We would like to transfer a donation to Win32 OpenSSL, but only without Paypal. Can we transfer directly? Please send me the bank details with a quote." My bank account is 000012345 and my routing number is 000012345. I look forward to your donation. Huh...that's amazing! I've got the same combination on my luggage!
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