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: 0afb2137d319b373a9f36047ccb9c95a61d24a5504ff5899db24adcf545aef28)

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: 01/03/2022


(SHA256: 11035f97e765802b3c7ffce152069123c76fd501035d65d26c5b06e7e125382e)

wolfSSL 5.1.0 includes bug fixes, vulnerability fixes, and new features including expanded NXP SE050 support, Renesas RA6M4 SCE Protected Mode and RX65N/RX72N TSIP 1.14 support, Apache support for post quantum resistant algorithms, NIST round 3 FALCON signature scheme in TLS 1.3, updated open source port support, and more!

License: GPLV2

Release Date: 01/03/2022


(SHA256: 196a3256a9044ecb89504ce77850342c82e676e7f2cad77f5584be3516b6060e)

This release includes one vulnerability fix, bug fixes, fixes to TLS 1.3 including support for Draft 21, disables TLS 1.0 by default, new options for memory reduction, Intel AVX1/AVX2 performance improvements, SHA-3 size and performance improvements, assembly optimizations for Curve25519 and Ed25519, expanded OpenSSL compatibility layer, updated project files for Visual Studio, TI-RTOS, STM32 CubeMX, IAR EWARM, Apple Xcode, and more!

License: GPLV2

Release Date: 12/21/2017


(SHA256: e31125089183f9c02341afa44dc045ece6e927ce933ea2658b32bb7b191cbce2)

wolfTPM 2.3.0 includes fixes for minor build issues, refactor of GPIO configure to combine and new PCR Read example.

License: GPLV2

Release Date: 11/08/2021


(SHA256: 1b612b745244b32636eaeac698c645909bbb4ed8757c2580d172f890dab12fc1)

wolfMQTT 1.11.0 includes fixes for SN_Client_Connect, sn-client, multithreading with non-blocking, wm_Sem on Windows, adds GitHub Actions, and more.

License: GPLV2

Release Date: 01/07/2022


(SHA256: 97f3c1d53b282415355cba3e9db221e30bf4f8c74dce39438a98a37f91f70f5e)

wolfSSH 1.4.8 includes bug fixes and new features including remote port forwarding, --with-wolfssl and --prefix support, easier example usage with user created keys, and more.

License: GPLV3

Release Date: 11/04/2021


(SHA256: 63a4a26dfa84450463bad7e4ffcd124c9f692ba85e812be4c28e6ae657a3f51e)

wolfBoot is a secure bootloader that leverages wolfSSL's underlying wolfCrypt module to provide signature authentication for the running firmware. This version expands Delta updates, adds support for Ed448, STM32G0 secure memory mode, STM32L5 dual-bank fix, UEFI support, and fixes for Cortex-R5 and PSOC-6.

License: GPLV2

Release Date: 01/10/2022


(SHA256: 28f6506edb39e2077cb7f74171cac54375409695686d0435084c34025048d07a)

Initial release of the wolfSentry embedded firewall/IDPS!

License: GPLV2

Release Date: 12/30/2021


(SHA256: 58a4e9406ec307243d14af7f53338ab8c70c87077e27d0e74609e1d65ec12ba5)

curl 7.80.0 includes ability to use wolfSSL with quantum safe KEM and hybrid curves, libssh2 SHA256 fingerprint support, urlapi changes, CURLOPT_MAXLIFETIME_CONN, CURLOPT_PREREQFUNCTION, and more!

License: GPLV3

Release Date: 11/10/2021


(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: 4357b938b35eace0250b2d67c04ead28b6ba0a80238c816bad8a02c831f50679)

wolfSSL JNI/JSSE 1.8.0 includes FIPS 140-3 compatibility, bug fixes and changes including fixes for Socket method wrappers, fixes for several NullPointerException cases, fixes for socket timeout handling, memory leak cleanup, updated Android AOSP support, updated example Android Studio project, and more!

License: GPLV2

Release Date: 11/12/2021


(SHA256: d3bdf683883a2b80e8ec0e58e6d463ce3f3ab2b5d35ea6a5a754a59d6425a405)

wolfCrypt JNI/JCE 1.2.0 includes FIPS 140-3 compatibility, bug fixes and changes including build fixes for debug builds, compatibility fixes for NO_OLD names, and compatibility fixes with wolfSSL --enable-all.

License: GPLV2

Release Date: 11/16/2021


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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