wolfSSL - Product Downloads


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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. If you need the COMMERCIALLY LICENSED versions, please contact us at facts@wolfssl.com.


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This form allows you to download the most recent stable open source (GPLv2/GPLv3) versions of both wolfSSL and wolfSSL JNI. If your project cannot tolerate the terms of the GPLv2/GPLv3, 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: 70a91ea5b43d7f46c744c6c9b36860bfce2e1d6add024b0c73d54ae4f74975a4)

wolfSSL-FIPS-READY is our FIPS specific cryptography code base which you can enable and build into your application. This FIPS-READY version includes all of the code you need to be ready to move forward with the FIPS validation process. wolfSSL-FIPS-READY supports a validated entropy source, all of the TLS 1.3 algorithms, and support for hardware encryption. Get ready for FIPS by using this download!

License: GPLV3

Release Date: 03/24/2023


(SHA256: ff8ca6bcdc01786727d7f11c05d04afa8e83b450014c92e9061df1a89eba15d9)

wolfSSL 5.6.0 includes bug fixes and new features including ASN template now enabled by default, support for TLS v1.3 Encrypted Client Hello (ECH) and Hybrid Public Key Encryption (HPKE), DTLS 1.3 stateless server ClientHello parsing, Renesas RX64/RX71 SHA hardware support, RT1170 port and expanded NXP CAAM driver support, NuttX integration files, additional CI testing, AES-GCM assembly for Windows, and more!

License: GPLV2

Release Date: 03/24/2023


(SHA256: 005d0aee773f7e1276153b8bd4a37a87255cdb1832e53ef5937378647581b43b)

wolfTPM 2.7.0 adds Infineon TriCore HAL support and examples for Keyed Hash / NV counter increment, minor fixes for NV auth and Keyed Hash, and more.

License: GPLV2

Release Date: 12/27/2022


(SHA256: 63252b93e9d0263f3d7bf924fab85bb84b3f9fbc63073ee0c7d118ef50772f3d)

wolfMQTT 1.15.1 fixes an edge case issue when using multi-threading.

License: GPLV2

Release Date: 03/14/2023


(SHA256: 3dac74600289ca8ad0c377e9dfc67a91eface2912f90dd961c2031ff9ec20a54)

wolfSSH 1.4.12 includes bug fixes and new features including support for Green Hills Software INTEGRITY, wolfSSHd release, support for RFC 6187, OCSP and CRL checking for X.509 certificates, new callback for reporting userauth result, FPKI profile checking support, chroot jailing for SFTP in wolfSSHd, permission level changes in wolfSSHd, Hybrid ECDH-P256 Kyber-Level1, multiple server key support, and more!

License: GPLV3

Release Date: 12/28/2022


(SHA256: a95e3ca8a1fc849e947dab26fd8c06d2f693bb66c62ab32d4680a6acf625ded7)

wolfBoot 1.14 adds support for CMake build, support for external flash on STM32U5, support for QSPI flash on STM32H7, adds support for NXP QoriQ P1021, includes cleanups and improvements for DEOS support on t2080, refactors Docker tests, and more!

License: GPLV2

Release Date: 12/30/2022


(SHA256: 85b6e6f54e4231452872813f6ffac74efb8d870b5a9cb4c306e764956aad84b1)

wolfSentry 1.1.0 includes bug fixes and new features including changes to internal settings, types, alignments, and constants, a complete set of internal shims, and Makefile clauses for portability to native FreeRTOS with threads on 32 bit gcc targets.

License: GPLV2

Release Date: 02/23/2023


(SHA256: b00d84ffe1219f3b013629840b09dae2df5b7e24fb7447b9b74fad280024c73b)

curl 7.84.0 fixes bugs, adds --rate, deprecates --random-file and --egd-file, adds CURL_VERSION_THREADSAFE, supports unix sockets for socks proxy, and more!

License: GPLV3

Release Date: 06/27/2022


(SHA256: 12a076025a65a18251ba2ab6e9136c496d8582c7f0846178e9311f98f6167949)

tiny-curl version 7.72.0 includes bug fixes and new features including Micrium uC/OS-III support and FreeRTOS support!

License: GPLV3

Release Date: 08/19/2020


(SHA256: 28cd5cd2f93458a3114c0294d22e16f8660228d26aa874a9c11557640ad37ec5)

wolfSSL JNI/JSSE adds support for keyStore system properties, adds secure renegotiation support, improves the SSLEngine implementation and fixes synchronization issues, adds non-standard checkServerTrusted(), adds RPM packaging support, and more!

License: GPLV2

Release Date: 12/02/2022


(SHA256: 1bc30a719b200db787c2fffe3bd94353d90e9cfe67ce142a086caead0a8abb8a)

wolfCrypt JNI/JCE 1.5.0 adds build compatibility with Java 7, adds support for "SHA" algorithm string, adds rpm package support, adds JCE MessageDigest.clone() support, improves error checking of native wolfCrypt MD5 API calls, and includes additional unit tests.

License: GPLV2

Release Date: 11/14/2022


(SHA256: 346e670cf07af661a37ab717c9dd72bb9be85f1a8ae844b665f655a759295496)

wolfSSL-py 5.5.4 updates wolfSSL support to 5.5.4.

License: GPLV2

Release Date: 12/30/2022


(SHA256: e9b9d0c0f0c300e6a6269215306bc041af7287f2415925a9963da554869f39d1)

wolfCrypt-py 5.5.4 updates wolfSSL support to 5.5.4.

License: GPLV2

Release Date: 12/30/2022


(SHA256: 5956d0818793e2f6944d6f19b6d524f0116725961fed47e07b5826dcd8404ab7)

wolfEngine 1.3.0 adds RPM package support, adds support and tests for OpenSSL HMAC to be called with -1 key length, and updates examples for OpenSSL 1.0.2 compatibility.

License: GPLV3

Release Date: 01/16/2023


(SHA256: 4d36f772b575650552b3f699535eb1deba720f05eabe7ce3316ef7710a26161d)

wolfCLU 0.1.0 includes fixes, adds sanitize testing with GitHub actions, updates the dhparam, x509, s_client, enc, and crl commands, adds Windows build support and more!

License: GPLV2

Release Date: 09/12/2022


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).

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