(View More Downloads)

Please Contact Us if you are downloading this as an evaluation and need evaluation support. For additional downloads, including yaSSL (C++), and our Java SSL Provider, see the More Downloads page.


(Letters allowed)

(Letters and Numbers allowed)

(Letters and Numbers allowed)

(Ex: [email protected])


Allowed characters include: letters, numbers, and [.,;:&"?!'()-]

  Do you need evaluation support or assistance from wolfSSL?

Step 2: SELECT DOWNLOAD [Please select your desired download]

This form allows you to download the most recent stable open source (GPLv2) versions of both wolfSSL and wolfSSL JNI. If your project cannot tolerate the terms of the GPLv2, please contact us to learn more about our commercial license.

For users looking to download the wolfCrypt embedded crypto engine, this is included in the wolfSSL package below. (SHA256: 27bb5563184bdcb2b0aca853ae6278d94f93d6027ad6383827213f08e35920a9)

Release 0.4 fixes bugs for acknowledgment return code, older wolfSSL releases, firmware example, Windows issues, and g++ builds, and includes updates to examples, and Visual Studio projects.

Release Date: 12/30/2015 (SHA256: 36369304dd107b2ae1360c91f3d0eea491802dcacb2155562652bf5257117016)

Release 3.8.0 of wolfSSL has bug fixes and new features including updated VxWorks support, AES-NI with AES-GCM, stunnel compatibility, signature/verify API, updated Cavium NITROX support, LPCXpresso IDE support, the addition of a C# wrapper, OCSP stapling beta release, updated OpenSSH compatibility, improved DTLS handshake, and more.

Release Date: 12/30/2015 (SHA256: f4030c9a22394921134d91026a75d9cad5c741738a604c74b6972569be7d9b09)

wolfSSL JNI 1.3.0 includes bug fixes and new features including updated support to wolfSSL 3.7.0, finalizers for context and session classes, deprecation of SSLv3, PSK support, better error and exception handling, and more.

Release Date: 12/04/2015


The wolfSSL source code is subject to the U.S. Export Administration Regulations and other U.S. law, and may not be exported or re-exported to certain countries (currently Afghanistan, Cuba, Iran, Iraq, Libya, North Korea, Sudan and Syria) or to persons or entities prohibited from receiving U.S. exports (including Denied Parties, entities on the Bureau of Export Administration Entity List, and Specially Designated Nationals).

  I have read and agree to the GNU license agreement. (required)