Comparison of SSH servers

<h2 id="general">General</h2>
<table><tbody><tr><th rowspan="2">Name</th><th rowspan="2">Developer</th><th rowspan="2">Initial release</th><th rowspan="2">Platform</th><th colspan="2">Latest release</th><th rowspan="2"><a href="/facts/Software_license/7enfIqhL">License</a></th></tr><tr><th>Version</th><th>Date</th></tr><tr><td rowspan="8"><a href="/facts/Apache_MINA/qCTmKeRb">Apache MINA</a> SSHD</td><td rowspan="8"><a href="/facts/Apache_Software_Foundation/Xl9Tt9lE">Apache Software Foundation</a></td><td rowspan="8">2009</td><td>AIX</td><td rowspan="8">2.9.0<a class="footnote-ref" id="fnref:1" href="#fn:1">1</a></td><td rowspan="8">2022-07-18</td><td rowspan="8"><a href="/facts/Apache_License/5AeIjas8">Apache-2.0</a></td></tr><tr><td>BSD</td></tr><tr><td>Linux</td></tr><tr><td>HP-UX</td></tr><tr><td>Java</td></tr><tr><td>macOS</td></tr><tr><td>Solaris</td></tr><tr><td>Windows</td></tr><tr><td><a href="/facts/Bitvise/nzPlYhJb">Bitvise</a> SSH Server</td><td>Bitvise Limited</td><td>2001</td><td>Windows</td><td>9.32<a class="footnote-ref" id="fnref:2" href="#fn:2">2</a><a class="footnote-ref" id="fnref:3" href="#fn:3">3</a> </td><td>2023-12-20</td><td><a href="/facts/Proprietary_software/9zcskxYL">Proprietary</a><a class="footnote-ref" id="fnref:4" href="#fn:4">4</a></td></tr><tr><td rowspan="2"><a href="/facts/CopSSH/ttTvWWok">CopSSH</a></td><td rowspan="2">Itefix</td><td rowspan="2">2003-08-12</td><td>Cygwin</td><td rowspan="2">7.10.1<a class="footnote-ref" id="fnref:5" href="#fn:5">5</a></td><td rowspan="2">2022-06-21</td><td rowspan="2"><a href="/facts/Proprietary_software/9zcskxYL">Proprietary</a></td></tr><tr><td>Windows</td></tr><tr><td rowspan="9"><a href="/facts/CrushFTP_Server/k60tsry7">CrushFTP Server</a></td><td rowspan="9">CrushFTP, LLC</td><td rowspan="9">2003-01-01</td><td>AIX</td><td rowspan="9">10.2.0<a class="footnote-ref" id="fnref:6" href="#fn:6">6</a> </td><td rowspan="9">2022-04-05</td><td rowspan="9"><a href="/facts/Proprietary_software/9zcskxYL">Proprietary</a><a class="footnote-ref" id="fnref:7" href="#fn:7">7</a></td></tr><tr><td>BSD</td></tr><tr><td>Cygwin</td></tr><tr><td>Linux</td></tr><tr><td>HP-UX</td></tr><tr><td>Java</td></tr><tr><td>macOS</td></tr><tr><td>Solaris</td></tr><tr><td>Windows</td></tr><tr><td rowspan="9"><a href="/facts/Dropbear_(software)/Y8GdfWhh">Dropbear</a></td><td rowspan="9">Matt Johnston</td><td rowspan="9">2003-04-06<a class="footnote-ref" id="fnref:8" href="#fn:8">8</a></td><td>AIX</td><td rowspan="9">2024.86<a class="footnote-ref" id="fnref:9" href="#fn:9">9</a> </td><td rowspan="9">2024-10-22</td><td rowspan="9"><a href="/facts/MIT_License/8llAQtlk">MIT</a></td></tr><tr><td>Android</td></tr><tr><td>BSD</td></tr><tr><td>Cygwin</td></tr><tr><td>Linux</td></tr><tr><td>HP-UX</td></tr><tr><td>macOS</td></tr><tr><td>Solaris</td></tr><tr><td>webOS</td></tr><tr><td rowspan="4"><a href="/facts/Lsh/E49PWVvy">lsh</a></td><td rowspan="4">Niels Möller</td><td rowspan="4">1999-05-23<a class="footnote-ref" id="fnref:10" href="#fn:10">10</a></td><td>BSD</td><td rowspan="4">2.1<a class="footnote-ref" id="fnref:11" href="#fn:11">11</a> </td><td rowspan="4">2013-06-26</td><td rowspan="4"><a href="/facts/GNU_General_Public_License/S75KhLSX">GPL-2.0-or-later</a></td></tr><tr><td>Linux</td></tr><tr><td>Solaris</td></tr><tr><td>macOS</td></tr><tr><td rowspan="14"><a href="/facts/OpenSSH/2qxJ3Fe7">OpenSSH</a><a class="footnote-ref" id="fnref:12" href="#fn:12">12</a></td><td rowspan="14">The <a href="/facts/OpenBSD/xmPS9tek">OpenBSD</a> project</td><td rowspan="14">1999-12-01</td><td>AIX</td><td rowspan="14">9.9<a class="footnote-ref" id="fnref:13" href="#fn:13">13</a> </td><td rowspan="14">2024-09-19</td><td rowspan="14"><a href="/facts/BSD_licenses/XLtmLp5x">BSD</a></td></tr><tr><td>AmigaOS</td></tr><tr><td>Android</td></tr><tr><td>BSD</td></tr><tr><td>Cygwin</td></tr><tr><td>Linux</td></tr><tr><td>HP-UX</td></tr><tr><td>iOS</td></tr><tr><td>macOS</td></tr><tr><td>OpenVMS</td></tr><tr><td>Solaris</td></tr><tr><td>webOS</td></tr><tr><td>Windows</td></tr><tr><td>z/OS</td></tr><tr><td><a href="/facts/Teleport_(open-source_software)/NeXYXP7k">Teleport</a></td><td>Gravitational</td><td>2016-06-23</td><td></td><td>17.4.1<a class="footnote-ref" id="fnref:14" href="#fn:14">14</a> </td><td>2025-03-29</td><td><a href="/facts/Apache_License/5AeIjas8">Apache-2.0</a></td></tr><tr><td rowspan="6"><a href="/facts/WolfSSH/WwHEyqQl">wolfSSH</a></td><td rowspan="6"><a href="/facts/WolfSSL/26UD7dQE">wolfSSL</a></td><td rowspan="6">2016-07-20</td><td>BSD</td><td rowspan="6">1.4.20<a class="footnote-ref" id="fnref:15" href="#fn:15">15</a> </td><td rowspan="6">2025-02-20</td><td rowspan="6"><a href="/facts/GNU_General_Public_License/S75KhLSX">GPL-3.0-or-later</a><a class="footnote-ref" id="fnref:16" href="#fn:16">16</a></td></tr><tr><td>Cygwin</td></tr><tr><td>Linux</td></tr><tr><td>macOS</td></tr><tr><td>Solaris</td></tr><tr><td>Windows</td></tr></tbody></table>

<h2 id="platform">Platform</h2>
The <a href="/facts/Operating_system/8XTuvMh2">operating systems</a> or <a href="/facts/Virtual_machine/BLevU3sx">virtual machines</a> the SSH servers are designed to run on without <a href="/facts/Emulator/FMHE8qDj">emulation</a>; there are several possibilities:

<ul><li>No indicates that it does not exist or was never released.</li>
<li>Partial indicates that while it works, the server lacks important functionality compared to versions for other OSs but may still be under development.</li>
<li>Beta indicates that while a version is fully functional and has been released, it is still in development (e.g. for stability).</li>
<li>Yes indicates that it has been officially released in a fully functional, stable version.</li>
<li>Dropped indicates that while the server works, new versions are no longer being released for the indicated OS; the number in parentheses is the last known stable version which was officially released for that OS.</li>
<li>Included indicates that the server comes pre-packaged with or has been integrated into the operating system.</li></ul>
The list is not exhaustive, but rather reflects the most common platforms today.

<table><tbody><tr><th>Name</th><th><a href="/facts/MacOS/Y93vVpTm">macOS</a></th><th><a href="/facts/Microsoft_Windows/bwhAhuSL">Windows</a></th><th><a href="/facts/Cygwin/0ANCmAgH">Cygwin</a></th><th><a href="/facts/Berkeley_Software_Distribution/XQKcURrh">BSD</a></th><th><a href="/facts/Linux/9FvCKSTq">Linux</a></th><th><a href="/facts/Solaris_(operating_system)/KPfT98EJ">Solaris</a></th><th><a href="/facts/Java_(software_platform)/fpn6x8WL">Java</a></th><th><a href="/facts/OpenVMS/rAnHAgpD">OpenVMS</a></th><th><a href="/facts/Z/OS/amLCAlgV">z/OS</a></th><th><a href="/facts/AmigaOS/1E2k1fuN">AmigaOS</a></th><th><a href="/facts/AIX/cRWERua2">AIX</a></th><th><a href="/facts/HP-UX/hIvLDdJF">HP-UX</a></th><th><a href="/facts/IOS/mK5cggH5">iOS</a><a class="footnote-ref" id="fnref:17" href="#fn:17">17</a></th><th><a href="/facts/WebOS/lf3sPSeG">webOS</a></th><th><a href="/facts/Android_(operating_system)/nNyHb0xz">Android</a></th></tr><tr><td><a href="/facts/Apache_MINA/qCTmKeRb">Apache MINA</a> SSHD</td><td>Yes</td><td>Yes</td><td>No</td><td>Yes</td><td>Yes</td><td>Yes</td><td>Yes</td><td>No</td><td>No</td><td>No</td><td>Yes</td><td>Yes</td><td>No</td><td>No</td><td>No</td></tr><tr><td><a href="/facts/Bitvise/nzPlYhJb">Bitvise</a> SSH Server</td><td>No</td><td>Yes</td><td>No</td><td>No</td><td>No</td><td>No</td><td>No</td><td>No</td><td>No</td><td>No</td><td>No</td><td>No</td><td>No</td><td>No</td><td>No</td></tr><tr><td><a href="/facts/CopSSH/ttTvWWok">CopSSH</a></td><td>No</td><td>Yes</td><td>Yes</td><td>No</td><td>No</td><td>No</td><td>No</td><td>No</td><td>No</td><td>No</td><td>No</td><td>No</td><td>No</td><td>No</td><td>No</td></tr><tr><td><a href="/facts/CrushFTP_Server/k60tsry7">CrushFTP Server</a></td><td>Yes</td><td>Yes</td><td>Yes</td><td>Yes</td><td>Yes</td><td>Yes</td><td>Yes</td><td>No</td><td>No</td><td>No</td><td>Yes</td><td>Yes</td><td>No</td><td>No</td><td>No</td></tr><tr><td><a href="/facts/Dropbear_(software)/Y8GdfWhh">Dropbear</a></td><td>Yes</td><td>No</td><td>Yes</td><td>Yes</td><td>Yes</td><td>Yes</td><td>No</td><td>No</td><td>No</td><td>No</td><td>Yes</td><td>Yes</td><td>No</td><td>Yes<a class="footnote-ref" id="fnref:18" href="#fn:18">18</a></td><td>Yes</td></tr><tr><td><a href="/facts/Lsh/E49PWVvy">lsh</a></td><td>Yes</td><td>No</td><td>No</td><td>Partial<a class="footnote-ref" id="fnref:19" href="#fn:19">19</a></td><td>Yes</td><td>Yes</td><td>No</td><td>No</td><td>No</td><td>No</td><td>No</td><td>No</td><td>No</td><td>No</td><td>??</td></tr><tr><td><a href="/facts/OpenSSH/2qxJ3Fe7">OpenSSH</a><a class="footnote-ref" id="fnref:20" href="#fn:20">20</a></td><td>Included</td><td>Optional<a class="footnote-ref" id="fnref:21" href="#fn:21">21</a></td><td>Included</td><td>Included</td><td>Included<a class="footnote-ref" id="fnref:22" href="#fn:22">22</a></td><td>Yes</td><td>No</td><td>Yes</td><td>Yes</td><td>Yes</td><td>Yes<a class="footnote-ref" id="fnref:23" href="#fn:23">23</a></td><td>Included</td><td>Yes<a class="footnote-ref" id="fnref:24" href="#fn:24">24</a></td><td>Yes<a class="footnote-ref" id="fnref:25" href="#fn:25">25</a></td><td>Partial</td></tr><tr><td><a href="/facts/WolfSSH/WwHEyqQl">wolfSSH</a></td><td>Yes</td><td>Yes</td><td>Yes</td><td>Yes</td><td>Yes</td><td>Yes</td><td>No</td><td>No</td><td>No</td><td>No</td><td>No</td><td>No</td><td>No</td><td>No</td><td>No</td></tr></tbody></table>

<h2 id="features">Features</h2>
<table><tbody><tr><th>Name</th><th>SSH1</th><th>SSH2</th><th><a href="/facts/Port_forwarding/s5rsSftr">Port forwarding</a></th><th><a href="/facts/SSH_file_transfer_protocol/88YptbER">SFTP</a></th><th><a href="/facts/Secure_copy/letk8brL">SCP</a></th><th><a href="/facts/IPv6/d4dg7kIL">IPv6</a></th><th>OpenSSH authorized keys</th><th>Privilege separation</th><th><a href="/facts/FIPS_140-2/xCKhMHnK">FIPS 140-2</a></th></tr><tr><td><a href="/facts/Apache_MINA/qCTmKeRb">Apache MINA</a> SSHD</td><td>No</td><td>Yes</td><td>Yes</td><td>Yes</td><td>Yes</td><td>Yes</td><td>Yes</td><td>No</td><td>?</td></tr><tr><td><a href="/facts/Bitvise/nzPlYhJb">Bitvise</a> SSH Server</td><td>No</td><td>Yes</td><td>Yes</td><td>Yes</td><td>Yes</td><td>Yes</td><td>Yes</td><td>Yes</td><td>Yes</td></tr><tr><td><a href="/facts/CopSSH/ttTvWWok">CopSSH</a></td><td>No</td><td>Yes</td><td>Yes</td><td>Yes</td><td>Yes</td><td>Yes</td><td>Yes</td><td>Yes<a class="footnote-ref" id="fnref:26" href="#fn:26">26</a></td><td>?</td></tr><tr><td><a href="/facts/CrushFTP_Server/k60tsry7">CrushFTP Server</a></td><td>No</td><td>Yes</td><td>Yes</td><td>Yes</td><td>Yes</td><td>Yes</td><td>Yes</td><td>Yes</td><td>?</td></tr><tr><td><a href="/facts/Dropbear_(software)/Y8GdfWhh">Dropbear</a></td><td>No</td><td>Yes</td><td>Yes</td><td>Partial</td><td>Yes</td><td>Yes</td><td>Yes</td><td>No</td><td>?</td></tr><tr><td><a href="/facts/Lsh/E49PWVvy">Lsh</a></td><td>No</td><td>Yes</td><td>Yes</td><td>Yes</td><td>Yes</td><td>?</td><td>?</td><td>?</td><td>?</td></tr><tr><td><a href="/facts/OpenSSH/2qxJ3Fe7">OpenSSH</a><a class="footnote-ref" id="fnref:27" href="#fn:27">27</a></td><td>No<a class="footnote-ref" id="fnref:28" href="#fn:28">28</a></td><td>Yes</td><td>Yes</td><td>Yes</td><td>Yes</td><td>Yes</td><td>Yes</td><td>Yes<a class="footnote-ref" id="fnref:29" href="#fn:29">29</a></td><td>Yes<a class="footnote-ref" id="fnref:30" href="#fn:30">30</a></td></tr><tr><td><a href="/facts/WolfSSH/WwHEyqQl">wolfSSH</a></td><td>No</td><td>Yes</td><td>Yes</td><td>Yes</td><td>Yes</td><td>Yes</td><td>Yes</td><td>No</td><td>Yes</td></tr></tbody></table>

<h2 id="see-also">See also</h2>
<ul><li><a href="/facts/List_of_SFTP_server_software/qmELqo6w">List of SFTP server software</a></li>
<li><a href="/facts/Comparison_of_SSH_clients/tEjXUnp6">Comparison of SSH clients</a></li></ul>

<h2 id="references">References</h2>

<ol>
<li id="fn:1">"Apache MINA SSHD". GitHub. 5 December 2021. <a href="https://github.com/apache/mina-sshd/" target="_blank">https://github.com/apache/mina-sshd/</a> <a href="#fnref:1" class="footnote-back-ref">↩</a></li>
<li id="fn:2">"Bitvise SSH Client Version History". 20 December 2023. <a href="https://www.bitvise.com/ssh-client-version-history-9" target="_blank">https://www.bitvise.com/ssh-client-version-history-9</a> <a href="#fnref:2" class="footnote-back-ref">↩</a></li>
<li id="fn:3">"Bitvise SSH Server Version History". 20 December 2023. <a href="https://www.bitvise.com/ssh-server-version-history-9" target="_blank">https://www.bitvise.com/ssh-server-version-history-9</a> <a href="#fnref:3" class="footnote-back-ref">↩</a></li>
<li id="fn:4">No cost for non-commercial use. <a href="/wiki/Gratis_versus_libre" target="_blank">/wiki/Gratis_versus_libre</a> <a href="#fnref:4" class="footnote-back-ref">↩</a></li>
<li id="fn:5">"Copssh update - 7.10.1". itefix.net. <a href="https://itefix.net/content/copssh-server-7101" target="_blank">https://itefix.net/content/copssh-server-7101</a> <a href="#fnref:5" class="footnote-back-ref">↩</a></li>
<li id="fn:6">"CrushFTP - Download". Archived from the original on 21 April 2022. <a href="https://web.archive.org/web/20220421015023/https://www.crushftp.com/download.html" target="_blank">https://web.archive.org/web/20220421015023/https://www.crushftp.com/download.html</a> <a href="#fnref:6" class="footnote-back-ref">↩</a></li>
<li id="fn:7">Shareware. <a href="#fnref:7" class="footnote-back-ref">↩</a></li>
<li id="fn:8">"Changes in Dropbear in official web page". <a href="https://matt.ucc.asn.au/dropbear/CHANGES" target="_blank">https://matt.ucc.asn.au/dropbear/CHANGES</a> <a href="#fnref:8" class="footnote-back-ref">↩</a></li>
<li id="fn:9">"Dropbear 2024.86". 22 October 2024. Retrieved 4 January 2025. <a href="https://github.com/mkj/dropbear/releases/tag/DROPBEAR_2024.86" target="_blank">https://github.com/mkj/dropbear/releases/tag/DROPBEAR_2024.86</a> <a href="#fnref:9" class="footnote-back-ref">↩</a></li>
<li id="fn:10">"Listing of /~nisse/archive/". liu.se. <a href="http://www.lysator.liu.se/~nisse/archive/" target="_blank">http://www.lysator.liu.se/~nisse/archive/</a> <a href="#fnref:10" class="footnote-back-ref">↩</a></li>
<li id="fn:11">"LSH-2.1 release". 26 June 2013. <a href="https://git.lysator.liu.se/lsh/lsh/-/tags/lsh_2.1_release_20130626" target="_blank">https://git.lysator.liu.se/lsh/lsh/-/tags/lsh_2.1_release_20130626</a> <a href="#fnref:11" class="footnote-back-ref">↩</a></li>
<li id="fn:12">Also known as OpenBSD Secure Shell. <a href="#fnref:12" class="footnote-back-ref">↩</a></li>
<li id="fn:13">"release-9.9". Retrieved 20 September 2024. <a href="https://www.openssh.com/txt/release-9.9" target="_blank">https://www.openssh.com/txt/release-9.9</a> <a href="#fnref:13" class="footnote-back-ref">↩</a></li>
<li id="fn:14">"Release 17.4.1". 29 March 2025. Retrieved 31 March 2025. <a href="https://github.com/gravitational/teleport/releases/tag/v17.4.1" target="_blank">https://github.com/gravitational/teleport/releases/tag/v17.4.1</a> <a href="#fnref:14" class="footnote-back-ref">↩</a></li>
<li id="fn:15">"Release 1.4.20". 20 February 2025. Retrieved 28 February 2025. <a href="https://github.com/wolfSSL/wolfssh/releases/tag/v1.4.20-stable" target="_blank">https://github.com/wolfSSL/wolfssh/releases/tag/v1.4.20-stable</a> <a href="#fnref:15" class="footnote-back-ref">↩</a></li>
<li id="fn:16">Also available under a proprietary license. <a href="#fnref:16" class="footnote-back-ref">↩</a></li>
<li id="fn:17">iPhone, iPod Touch. Unless otherwise noted, iPhone refers to non-jailbroken devices. <a href="/wiki/IPhone" target="_blank">/wiki/IPhone</a> <a href="#fnref:17" class="footnote-back-ref">↩</a></li>
<li id="fn:18">OpenSSH and Dropbear are available as optware packages installed by PreWare (maintained by WebOS Internals). <a href="#fnref:18" class="footnote-back-ref">↩</a></li>
<li id="fn:19">Lsh supports only one BSD platform officially, FreeBSD.[citation needed] <a href="/wiki/FreeBSD" target="_blank">/wiki/FreeBSD</a> <a href="#fnref:19" class="footnote-back-ref">↩</a></li>
<li id="fn:20">Also known as OpenBSD Secure Shell. <a href="#fnref:20" class="footnote-back-ref">↩</a></li>
<li id="fn:21">Native OpenSSH for Windows 10 is an optional feature that can be installed. OpenSSH can be installed in windows from windows 10 version 1709 and up. The project is called Win32-OpenSSH (contains 64bit as well), hosted on GitHub.[13] <a href="#fnref:21" class="footnote-back-ref">↩</a></li>
<li id="fn:22">Most Linux distributions have OpenSSH as an official package, but a few do not. <a href="/wiki/Linux_distributions" target="_blank">/wiki/Linux_distributions</a> <a href="#fnref:22" class="footnote-back-ref">↩</a></li>
<li id="fn:23">OpenSSH 3.4 was the first release included since AIX.[14] <a href="/wiki/IBM_AIX" target="_blank">/wiki/IBM_AIX</a> <a href="#fnref:23" class="footnote-back-ref">↩</a></li>
<li id="fn:24">Only for jailbroken devices. <a href="/wiki/IOS_jailbreaking" target="_blank">/wiki/IOS_jailbreaking</a> <a href="#fnref:24" class="footnote-back-ref">↩</a></li>
<li id="fn:25">OpenSSH and Dropbear are available as optware packages installed by PreWare (maintained by WebOS Internals). <a href="#fnref:25" class="footnote-back-ref">↩</a></li>
<li id="fn:26">"sshd_config(5)". Retrieved 2016-05-18. <a href="http://man.openbsd.org/OpenBSD-current/man5/sshd_config.5" target="_blank">http://man.openbsd.org/OpenBSD-current/man5/sshd_config.5</a> <a href="#fnref:26" class="footnote-back-ref">↩</a></li>
<li id="fn:27">Also known as OpenBSD Secure Shell. <a href="#fnref:27" class="footnote-back-ref">↩</a></li>
<li id="fn:28">"OpenSSH 7.5 Release notes, SSHv1 server no longer supported". Retrieved 2017-07-09. <a href="https://www.openssh.com/txt/release-7.5" target="_blank">https://www.openssh.com/txt/release-7.5</a> <a href="#fnref:28" class="footnote-back-ref">↩</a></li>
<li id="fn:29">"sshd_config(5)". Retrieved 2016-05-18. <a href="http://man.openbsd.org/OpenBSD-current/man5/sshd_config.5" target="_blank">http://man.openbsd.org/OpenBSD-current/man5/sshd_config.5</a> <a href="#fnref:29" class="footnote-back-ref">↩</a></li>
<li id="fn:30">OpenSSH server can be built with FIPS 140-2.[17] <a href="#fnref:30" class="footnote-back-ref">↩</a></li>
</ol>

Comparison of SSH servers open-in-new

Comparison of SSH servers