Comparison of file synchronization software

<h2 id="free-and-open-source">Free and open-source</h2>

<table><tbody><tr><th>Name</th><th><a href="/facts/Programming_language/cWTYbgWa">Programming language</a></th><th>Platform</th><th>License</th><th>Last version</th><th><a href="/facts/Portable_application/BKGBS4rR">Portable</a></th><th>Detect conflict</th><th>Renames or moves</th><th>Propagate deletes</th><th><a href="/facts/Version_control/pxCmFXqK">Version control</a></th><th>Scheduling or service</th><th>Other</th><th>Bidirectional</th><th>Only client needed</th><th><a href="/facts/Protocol_layer/5uady7cB">Protocol layer</a></th><th><a href="/facts/Application_layer/FAFhLruA">Application layer</a></th><th><a href="/facts/Delta_copying/2NQlyAUc">Delta copying</a></th></tr><tr><td><a href="/facts/Conduit_(software)/CX0MexcP">Conduit</a></td><td><a href="/facts/Python_(programming_language)/YbuGqofa">Python</a></td><td>Linux, FreeBSD</td><td><a href="/facts/GNU_General_Public_License/S75KhLSX">GPL</a></td><td>2010<a class="footnote-ref" id="fnref:1" href="#fn:1">1</a></td><td>No</td><td></td><td></td><td></td><td></td><td>Yes</td><td>Synchronizes files, website, network apps</td><td></td><td></td><td></td><td></td><td></td></tr><tr><td><a href="/facts/DirSync_Pro/CyCYCKuq">DirSync Pro</a></td><td><a href="/facts/Java_(programming_language)/9ScgFyAL">Java</a></td><td>Windows, macOS, Linux</td><td>GPLv3</td><td>2018<a class="footnote-ref" id="fnref:2" href="#fn:2">2</a></td><td>Yes</td><td>Yes</td><td>No</td><td></td><td>Yes (creates backup files)</td><td>Yes (native + via OS)</td><td><a href="/facts/DirSync_Pro/CyCYCKuq">sym-links, filter, metadata, contents, auto-sync</a></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td><a href="/facts/FreeFileSync/1Gdh2vRB">FreeFileSync</a></td><td><a href="/facts/C%2B%2B/Et0F2qn9">C++</a></td><td>Windows, macOS, Linux</td><td>GPL (up to version 12.5)</td><td>last GPL version 12.5 Jul 21, 2023<a class="footnote-ref" id="fnref:3" href="#fn:3">3</a><a class="footnote-ref" id="fnref:4" href="#fn:4">4</a></td><td>Yes (donation edition)<a class="footnote-ref" id="fnref:5" href="#fn:5">5</a></td><td>Yes<a class="footnote-ref" id="fnref:6" href="#fn:6">6</a></td><td>Yes<a class="footnote-ref" id="fnref:7" href="#fn:7">7</a></td><td>Yes<a class="footnote-ref" id="fnref:8" href="#fn:8">8</a></td><td>Yes (versioning, recycler)<a class="footnote-ref" id="fnref:9" href="#fn:9">9</a></td><td>Yes</td><td>Older version had <a href="/facts/OpenCandy/k958SYVR">OpenCandy</a> adware/malware, but now funded by donations.<a class="footnote-ref" id="fnref:10" href="#fn:10">10</a><a class="footnote-ref" id="fnref:11" href="#fn:11">11</a> Since Version 13 license for business usage needed</td><td>Yes (two-way, mirror, update, custom)</td><td>Yes</td><td></td><td></td><td></td></tr><tr><td><a href="/facts/IFolder/qU9AdE4V">iFolder</a></td><td>C#, <a href="/facts/Mono_(software)/PlyeJxRS">Mono</a></td><td>Windows, macOS, Linux, Solaris</td><td>GPL</td><td>2010</td><td>No</td><td>Yes (centralized database)</td><td>Yes (files, not folders)</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td><a href="/facts/InterPlanetary_File_System/VUhdLRdm">Kubo (IPFS)</a></td><td>Go</td><td>Windows, macOS, Linux</td><td>GPL</td><td>2022<a class="footnote-ref" id="fnref:12" href="#fn:12">12</a></td><td></td><td>Yes</td><td></td><td></td><td>No (planned)<a class="footnote-ref" id="fnref:13" href="#fn:13">13</a></td><td></td><td></td><td></td><td></td><td><a href="/facts/Noise_Protocol_Framework/WAR8x10r">Noise</a>/TCP and <a href="/facts/QUIC/nQt0oLRW">QUIC</a>/UDP</td><td><a href="/facts/Libp2p/5DIc3zDN">Libp2p</a></td><td>Yes (network-wide de-duplication)</td></tr><tr><td><a href="/facts/LuckyBackup/IR8NrrqE">luckyBackup</a></td><td>C++</td><td>Windows, macOS, Linux, FreeBSD</td><td>GPLv3</td><td>2018<a class="footnote-ref" id="fnref:14" href="#fn:14">14</a></td><td>Yes</td><td></td><td></td><td></td><td></td><td>Yes</td><td>Uses rsync backend</td><td></td><td></td><td></td><td></td><td></td></tr><tr><td><a href="/facts/Nextcloud/4dCYj8W0">Nextcloud</a></td><td>JavaScript, PHP, Shell, Python, Vue<a class="footnote-ref" id="fnref:15" href="#fn:15">15</a></td><td>Server: Linux, FreeBSD Clients: Windows, macOS, Linux, FreeBSD, Android, iOS, Windows Phone</td><td>AGPLv3</td><td>2023</td><td>Yes</td><td>Yes</td><td>Yes</td><td>Yes<a class="footnote-ref" id="fnref:16" href="#fn:16">16</a></td><td>Yes</td><td>Yes</td><td>Fork of ownCloud</td><td>Yes</td><td>No</td><td></td><td></td><td></td></tr><tr><td><a href="/facts/OwnCloud/d06Ka1yW">ownCloud</a> community edition</td><td>PHP, Go, JavaScript, Starlark, Shell<a class="footnote-ref" id="fnref:17" href="#fn:17">17</a></td><td>Server: Linux, FreeBSDClients: Windows, macOS, Linux, FreeBSD, Android, iOS, Blackberry</td><td>AGPLv3 (server edition) / proprietary (enterprise edition)</td><td>2021</td><td>Yes</td><td>Yes</td><td>Yes</td><td>Yes<a class="footnote-ref" id="fnref:18" href="#fn:18">18</a></td><td>Yes</td><td>Yes</td><td>External storage support; encryption</td><td>Yes</td><td>No</td><td></td><td></td><td></td></tr><tr><td><a href="/facts/Pydio/Hr708zej">Pydio</a> open source home</td><td>Server: PHP, Python, C++ Clients: JS, C#, Swift, Java</td><td>Windows, macOS, Linux, Android, iOS</td><td>AGPLv3</td><td>2017</td><td>Yes</td><td>Yes</td><td>Yes</td><td></td><td>Yes (<a href="/facts/Git_(software)/U5Ty9QmQ">Git</a><a class="footnote-ref" id="fnref:19" href="#fn:19">19</a>)</td><td>Yes</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td><a href="/facts/Rclone/tXnMq7x8">rclone</a></td><td><a href="/facts/Go_(programming_language)/oWlsmAFJ">Go</a></td><td><a href="/facts/Linux/9FvCKSTq">Linux</a>, <a href="/facts/Microsoft_Windows/bwhAhuSL">Windows</a>, <a href="/facts/MacOS/Y93vVpTm">macOS</a>, <a href="/facts/FreeBSD/RKsFTm7F">FreeBSD</a>, <a href="/facts/NetBSD/PTm5HWls">NetBSD</a>, <a href="/facts/OpenBSD/xmPS9tek">OpenBSD</a>, <a href="/facts/Plan_9_from_Bell_Labs/pQjPlS7w">Plan9</a>, <a href="/facts/Solaris_(operating_system)/KPfT98EJ">Solaris</a> - Intel/AMD-64, Intel/AMD-32, ARM-32, ARM-64, MIPS-Big-Endian, MIPS-Little-Endian</td><td><a href="/facts/MIT_License/8llAQtlk">MIT</a></td><td>2023</td><td>Yes</td><td>Yes</td><td>Yes</td><td>Yes</td><td>Yes</td><td>Yes (via OS)</td><td>Supports over 50 cloud, protocol and virtual backends including S3 buckets, Google Drive, Microsoft OneDrive, and other high-latency file storage. Capabilities include sync, cache, encrypt, compress and mount.</td><td>In alpha version since 2021</td><td>Yes</td><td></td><td></td></tr><tr><td><a href="/facts/Rsync/H4UlsQ3U">rsync</a></td><td><a href="/facts/C_(programming_language)/Ky2No763">C</a> in a Unix-Linux shell</td><td>Windows, macOS,<a class="footnote-ref" id="fnref:20" href="#fn:20">20</a> Linux,<a class="footnote-ref" id="fnref:21" href="#fn:21">21</a><a class="footnote-ref" id="fnref:22" href="#fn:22">22</a> BSD</td><td><a href="/facts/GPL_v3/S75KhLSX">GPL v3</a></td><td>2022</td><td>Yes</td><td>No<a class="footnote-ref" id="fnref:23" href="#fn:23">23</a></td><td>No</td><td>Yes using --delete</td><td>Yes using --backup and a time-stamped --suffix</td><td>Yes (via OS)</td><td>Client and server operation. Multiple comparison criteria (date, check-sum).</td><td>No, but can run in either direction</td><td>Yes</td><td><a href="/facts/Transmission_Control_Protocol/WW4sPrt9">TCP</a></td><td><a href="/facts/SSH/wjVRw5zv">SSH</a>, <a href="/facts/Remote_shell/3srzDw31">Rsh</a></td><td>Yes</td></tr><tr><td><a href="/facts/Seafile/mjLyo2de">Seafile</a> community edition</td><td><a href="/facts/C99/o5uMWjTQ">C99</a>, Python<a class="footnote-ref" id="fnref:24" href="#fn:24">24</a></td><td>Server: Linux, Raspbian, WindowsClients: Linux, macOS, Windows, Android, iOS.<a class="footnote-ref" id="fnref:25" href="#fn:25">25</a></td><td><a href="/facts/GNU_Affero_General_Public_License/n1h9A893">AGPLv3</a> (Server) + <a href="/facts/Apache_License/5AeIjas8">Apache License 2.0</a> (Client)</td><td>2020</td><td>No</td><td>Yes</td><td>Yes</td><td>Yes</td><td>Yes</td><td>Yes (via Seafile Client)</td><td>Android and iOS mobile clients</td><td></td><td></td><td></td><td></td><td></td></tr><tr><td><a href="/facts/SparkleShare/JmIE1C6Y">SparkleShare</a></td><td>C#</td><td>Windows, macOS, Linux, <a href="/facts/Android_(operating_system)/nNyHb0xz">Android</a>, <a href="/facts/IOS/mK5cggH5">iOS</a></td><td><a href="/facts/GPL_v3/S75KhLSX">GPL v3</a> and <a href="/facts/LGPL/AXwkz9x3">LGPL</a></td><td>2017</td><td>Yes</td><td>Yes</td><td>No</td><td></td><td>Yes (<a href="/facts/Git_(software)/U5Ty9QmQ">Git</a><a class="footnote-ref" id="fnref:26" href="#fn:26">26</a>)</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td><a href="/facts/SymmetricDS/g9zAoJzg">SymmetricDS</a></td><td>Java</td><td><a href="/facts/Java_SE/1HMPhdsv">Java SE</a></td><td><a href="/facts/GPL/S75KhLSX">GPL</a></td><td>2018</td><td>Yes</td><td>Yes</td><td>Yes</td><td></td><td>No</td><td>Yes</td><td>Plug-in APIs for customization</td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Synchronizer (<a href="/facts/Krusader/4Y5hySMs">krusader</a>)</td><td></td><td>Windows, macOS, Linux</td><td><a href="/facts/GPL_v2/S75KhLSX">GPL v2</a></td><td>2017</td><td>No</td><td>Yes</td><td>No</td><td></td><td>No</td><td>No</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td><a href="/facts/Syncthing/9LLedpSS">Syncthing</a></td><td><a href="/facts/Go_(programming_language)/oWlsmAFJ">Go</a></td><td>Windows, macOS, Linux, <a href="/facts/Android_(operating_system)/nNyHb0xz">Android</a>, <a href="/facts/BSD/XQKcURrh">BSD</a>, <a href="/facts/Solaris_(operating_system)/KPfT98EJ">Solaris</a>, 3rd party app for IPhone<a class="footnote-ref" id="fnref:27" href="#fn:27">27</a></td><td><a href="/facts/Mozilla_Public_License/hBuvAz1w">MPL v2</a></td><td>2023</td><td>Yes</td><td>Yes</td><td>Yes</td><td>Yes</td><td>Yes</td><td>Yes</td><td>Distributed peer-to-peer sync with automatic NAT traversal. Custom topology (star, full-mesh, mixed). Encryption.</td><td>Yes</td><td>Yes</td><td>TCP, QUIC over UDP</td><td></td><td>Yes, block-based copying</td></tr><tr><td><a href="/facts/Synkron/nJVTelbE">Synkron</a></td><td>C++</td><td>Windows, macOS, Linux</td><td><a href="/facts/GPL_v2/S75KhLSX">GPL v2</a></td><td>2011<a class="footnote-ref" id="fnref:28" href="#fn:28">28</a></td><td>Yes</td><td>Yes</td><td>No</td><td>Yes</td><td>Yes</td><td>Yes</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td><a href="/facts/Unison_(software)/JXvfmdd6">Unison</a></td><td>Mainly <a href="/facts/OCaml/ThBGLND8">OCaml</a><a class="footnote-ref" id="fnref:29" href="#fn:29">29</a></td><td>Windows, macOS, Linux</td><td><a href="/facts/GPL/S75KhLSX">GPL</a></td><td>2024<a class="footnote-ref" id="fnref:30" href="#fn:30">30</a></td><td>Yes</td><td>Yes</td><td>Yes</td><td>Yes</td><td>Yes</td><td>Yes</td><td>Uses rsync backend</td><td>Yes</td><td>No</td><td><a href="/facts/Transmission_Control_Protocol/WW4sPrt9">TCP</a></td><td><a href="/facts/SSH/wjVRw5zv">SSH</a>, <a href="/facts/Network_socket/r1ldfkb5">socket</a></td><td>Yes</td></tr><tr><th>Name</th><th>Programming language</th><th>Platform</th><th>License</th><th>Last version</th><th>Portable</th><th>Detect conflict</th><th>Renames or moves</th><th>Propagate deletes</th><th><a href="/facts/Version_control/pxCmFXqK">Version control</a></th><th>Scheduling or service</th><th>Other info</th><th>Bidirectional</th><th>Only client needed</th><th><a href="/facts/Protocol_layer/5uady7cB">Protocol layer</a></th><th><a href="/facts/Application_layer/FAFhLruA">Application layer</a></th><th><a href="/facts/Delta_copying/2NQlyAUc">Delta copying</a></th></tr></tbody></table>
<h2 id="freeware">Freeware</h2>
This is a comparison of the <a href="/facts/Freeware/c8oGA9ju">freeware</a> (<a href="/facts/Proprietary_software/9zcskxYL">proprietary software</a> release <a href="/facts/Free_of_charge/YDd7Hjzm">free of charge</a>) file synchronization software.

<table><tbody><tr><th>Name</th><th>Operating system</th><th>Vendor</th><th><a href="/facts/Online_file_storage/AWz9wQt8">Online storage</a></th><th><a href="/facts/Remote_desktop/gJgglwht">Remote desktop</a></th><th>Prior file versions, <a href="/facts/Revision_control/pxCmFXqK">revision control</a></th><th>Comments</th><th>Portable</th><th>Detect rename</th><th>Detect move</th><th>Scheduling</th><th>Full duplextransfer</th></tr><tr><td><a href="/facts/ActiveSync/k0ybf8bW">Microsoft ActiveSync</a></td><td>Windows</td><td><a href="/facts/Microsoft/nGIDDXdx">Microsoft</a></td><td>No</td><td>No</td><td>?</td><td>Syncs mobile devices</td><td></td><td></td><td></td><td></td><td></td></tr><tr><td><a href="/facts/Resilio_Sync/61yYV3TB">Resilio Sync</a> (formerly BitTorrent Sync)</td><td>Windows, OS X, Linux, FreeBSD, Android, iOS</td><td><a href="/facts/Resilio,_Inc./61yYV3TB">Resilio, Inc.</a></td><td>No</td><td>No</td><td>Yes (via archive folder)</td><td>Distributed peer-to-peer sync., working also offline in a LAN</td><td>No</td><td>Yes</td><td>Yes</td><td>Pro only<a class="footnote-ref" id="fnref:31" href="#fn:31">31</a></td><td>Yes</td></tr><tr><td><a href="/facts/Briefcase_(Microsoft_Windows)/mKMmAqo3">Briefcase</a> (part of Windows) (removed in Windows 10 build 14942<a class="footnote-ref" id="fnref:32" href="#fn:32">32</a>)</td><td>Windows</td><td><a href="/facts/Microsoft/nGIDDXdx">Microsoft</a></td><td>No</td><td>No</td><td>?</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td><a href="/facts/Cobian_Backup/7JcPHmYq">Cobian Backup</a></td><td>Windows</td><td>CobianSoft</td><td>No</td><td>No</td><td>Yes, trash folder</td><td>Backup software with folder synchronization feature; remote management; <a href="/facts/Shadow_Copy/fDfa7CEt">Shadow Copy</a></td><td>No</td><td>No</td><td>No</td><td>Yes</td><td></td></tr><tr><td><a href="/facts/Windows_Mobile_Device_Center/GkUw7EV8">Windows Mobile Device Center</a></td><td>Windows</td><td><a href="/facts/Microsoft/nGIDDXdx">Microsoft</a></td><td>No</td><td>No</td><td>?</td><td>Syncs mobile devices; successor to Microsoft <a href="/facts/ActiveSync/k0ybf8bW">ActiveSync</a></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td><a href="/facts/Microsoft_Sync_Framework/oJf6Q135">Microsoft Sync Framework</a></td><td>Windows</td><td><a href="/facts/Microsoft/nGIDDXdx">Microsoft</a></td><td>?</td><td>No</td><td>?</td><td>Syncs files, data, services; a framework, not a tool</td><td></td><td>Yes</td><td>Yes</td><td>—</td><td></td></tr><tr><td><a href="/facts/SyncToy/43ropEEz">Microsoft SyncToy</a> (discontinued January 2021)</td><td>Windows</td><td><a href="/facts/Microsoft/nGIDDXdx">Microsoft</a></td><td>No</td><td>No</td><td>No, recycle bin only</td><td>Sync. local folders</td><td>No</td><td>Yes</td><td>Yes</td><td>via OS</td><td>No</td></tr><tr><td><a href="/facts/Live_Mesh/SmEm3Fef">Windows Live Mesh</a> (discontinued 13 February 2013)</td><td>Windows (Vista and greater), Windows Mobile, OSX</td><td><a href="/facts/Microsoft/nGIDDXdx">Microsoft</a></td><td>Yes</td><td>Yes</td><td>No, recycle bin only</td><td>Sync. folders, <a href="/facts/Online_file_storage/AWz9wQt8">online storage</a></td><td>No</td><td>Yes</td><td>?</td><td>No, syncs whenever it is online</td><td>Yes</td></tr><tr><td><a href="/facts/OmniGroup/bQsLq6Lg">OmniGroup</a> OmniPresence</td><td>OSX, OmniGroup software for iOS, open source framework available</td><td><a href="/facts/OmniGroup/bQsLq6Lg">OmniGroup</a></td><td>No</td><td>No</td><td>No, via local Time Machine backup only</td><td>Sync. local folders via OmniSync or WebDAV server but not to the server itself</td><td>No</td><td>?</td><td>?</td><td>No, syncs whenever it's online and not paused</td><td>Yes</td></tr><tr><td><a href="/facts/Windows_Live_Sync/SmEm3Fef">Windows Live Sync</a> (discontinued 31 March 2011)</td><td>Windows, OSX</td><td><a href="/facts/Microsoft/nGIDDXdx">Microsoft</a></td><td>No, browsing only</td><td>No</td><td>No, recycle bin only</td><td>Sync. folders, browse devices from website, remote access; was Microsoft FolderShare, 20,000 file limit</td><td>No</td><td>Yes</td><td>Yes</td><td>No, syncs whenever it's online</td><td>?</td></tr></tbody></table>
<h2 id="commercial">Commercial</h2>
This is a comparison of <a href="/facts/Commercial_software/WLgyRFMh">commercial software</a> in the field of file synchronization. These programs only provide full functionality with a payment. As indicated, some are <a href="/facts/Trialware/TAhIvJXt">trialware</a> and provide functionality during a trial period; some are <a href="/facts/Freemium/ofbqmWgu">freemium</a>, meaning that they have freeware editions.

<table><tbody><tr><th scope="col">Name</th><th scope="col">Operating system</th><th scope="col">Freeware version</th><th scope="col">Portable</th><th scope="col">Encrypts files</th><th scope="col">Detect conflict</th><th scope="col">File lock</th><th scope="col">Open file support</th><th scope="col"><a href="/facts/Revision_control/pxCmFXqK">Revision control</a></th><th scope="col">Detect rename</th><th scope="col">Detect move</th><th scope="col">Full duplex transfer</th><th scope="col">Propagate deletes</th><th scope="col">Case sensitive</th><th scope="col"><a href="/facts/Delta_copying/2NQlyAUc">Delta transfer</a></th><th scope="col">LAN sync.</th><th scope="col"><a href="/facts/Peer-to-peer/wCCdPb0H">P2P</a> sync.</th></tr><tr><th scope="row"><a href="/facts/@MAX_SyncUp/WKr0XALu">@MAX SyncUp</a></th><td>Windows</td><td>Limited</td><td>No</td><td></td><td>Yes</td><td>Yes</td><td>Yes</td><td></td><td>No</td><td>No</td><td></td><td>Yes</td><td></td><td>Yes</td><td>Yes</td><td></td></tr><tr><th scope="row"><a href="/facts/Allway_Sync/RwlvG7bF">Allway Sync</a></th><td>Windows</td><td>Limited</td><td>Yes</td><td>Yes</td><td>Yes</td><td></td><td>Yes</td><td>Yes</td><td>No</td><td>No</td><td>Yes</td><td>Yes</td><td></td><td></td><td>Yes</td><td></td></tr><tr><th scope="row"><a href="/facts/AIMstor/WDKgo3SM">AIMstor</a> (discontinued)</th><td>Windows</td><td>Limited</td><td>Yes</td><td></td><td>Yes</td><td>Yes</td><td>Yes</td><td>Yes through VSS</td><td>Yes</td><td>Yes</td><td>Yes</td><td>Yes</td><td>Casepreservingonly</td><td></td><td></td><td></td></tr><tr><th scope="row"><a href="/facts/Argentum_Backup/R9LMbNMn">Argentum Backup</a></th><td>Windows</td><td>No</td><td>Yes</td><td></td><td></td><td></td><td>No</td><td>Yes</td><td></td><td></td><td></td><td></td><td>Yes</td><td></td><td></td><td></td></tr><tr><th scope="row"><a href="/facts/BackupAssist/Jq4pfCme">BackupAssist</a></th><td>Windows</td><td>No</td><td></td><td></td><td>No</td><td></td><td>Yes</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><th scope="row"><a href="/facts/Beyond_Compare/xyKpGEmb">Beyond Compare</a></th><td>Windows, OS X, Linux</td><td>Limited</td><td>Yes</td><td>No</td><td>Yes</td><td></td><td>Yes</td><td>Yes</td><td></td><td></td><td></td><td>Yes</td><td></td><td></td><td></td><td></td></tr><tr><th scope="row"><a href="/facts/Box.net/HGHEp6B5">Box Sync</a></th><td>Windows,<a class="footnote-ref" id="fnref:33" href="#fn:33">33</a> OS X,<a class="footnote-ref" id="fnref:34" href="#fn:34">34</a> Android, BlackBerry, iOS<a class="footnote-ref" id="fnref:35" href="#fn:35">35</a></td><td>Limited</td><td></td><td></td><td>Yes</td><td>?</td><td>?</td><td>Yes</td><td>?</td><td>?</td><td>?</td><td>Yes</td><td>?</td><td></td><td>No</td><td></td></tr><tr><th scope="row"><a href="/facts/Cloudike/6cKa42ms">Cloudike</a></th><td>Windows, OS X, iPhone, Android, HarmonyOS</td><td>Yes</td><td>No</td><td>Yes</td><td>Yes</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><td>Yes</td><td></td></tr><tr><th scope="row"><a href="/facts/CloudMe/ACJDE4vX">CloudMe</a></th><td>Windows, OS X, Linux, iPhone, Android, Google TV, Samsung TV</td><td>Yes</td><td>No</td><td></td><td>Yes</td><td>?</td><td>?</td><td>No</td><td>Yes</td><td>No</td><td>?</td><td>?</td><td>Yes</td><td>?</td><td>No</td><td></td></tr><tr><th scope="row"><a href="/facts/Distributed_Storage/Bz61f7Ce">Distributed Storage</a></th><td>Windows, Linux</td><td>No</td><td></td><td></td><td>Yes</td><td>Yes</td><td>Yes</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><th scope="row"><a href="/facts/Dmailer/KME8GjpE">Dmailer Sync</a> (discontinued)</th><td>Windows</td><td>Yes</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><th scope="row"><a href="/facts/Dropbox_(service)/1WHn5C7p">Dropbox</a></th><td>Windows, OS X, Linux, Android, iPhone, BlackBerry</td><td>Yes</td><td>No</td><td></td><td>Yes</td><td>?</td><td>?</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><td></td></tr><tr><th scope="row"><a href="/facts/Easy2Sync_for_Files/0Cv0lhQ3">Easy2Sync for Files</a></th><td>Windows</td><td>Yes</td><td></td><td></td><td>Yes</td><td></td><td></td><td>Yes</td><td>Yes, for folders</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><th scope="row"><a href="/facts/Egnyte/IbwNjDIb">Egnyte</a></th><td>Windows, OS X, Linux, Android, iPad, iPhone</td><td>No</td><td>No</td><td></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><td>Casepreservingonly</td><td>Yes</td><td>Yes</td><td></td></tr><tr><th scope="row"><a href="/facts/Gladinet/FTJUvIh2">Gladinet</a></th><td>Windows, OS X, Android, iPad, iPhone, Windows RT, Blackberry</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><td>Yes</td><td>Yes</td><td>Yes</td><td>Yes</td><td>Yes</td><td>Yes</td><td></td></tr><tr><th scope="row"><a href="/facts/Linoma_Software/unSYxFBq">GoDrive</a></th><td>Windows, Mac OS X, Linux, Android, iOS</td><td>Limited</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><td>?</td><td>Yes</td><td>Yes</td><td>?</td><td>Yes</td><td></td></tr><tr><th scope="row"><a href="/facts/GoodSync/zyAfj536">GoodSync</a></th><td>Windows, OS X, Android, iPad, iPhone, USB flash drive</td><td>Limited</td><td>Yes</td><td>Yes, beta</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><td>Yes</td><td>Yes</td><td>Yes</td><td></td></tr><tr><th scope="row"><a href="/facts/IBM_Connections/opBaGmyd">IBM Connections</a></th><td>Windows, OS X, Android, iOS</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><td>Yes</td><td>Yes</td><td>Yes</td><td>Yes</td><td>No</td><td></td></tr><tr><th scope="row"><a href="/facts/MediaFire/yL2RKhQP">MediaFire</a></th><td>Windows, OS X, Android, iOS</td><td>Yes</td><td></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><td>Yes</td><td>Yes</td><td>Yes</td><td>No</td><td></td></tr><tr><th scope="col">Name</th><th scope="col">Operating system</th><th scope="col">Freeware version</th><th scope="col">Portable</th><th scope="col">Encrypts files</th><th scope="col">Detect conflict</th><th scope="col">File lock</th><th scope="col">Open file support</th><th scope="col"><a href="/facts/Revision_control/pxCmFXqK">Revision control</a></th><th scope="col">Detect rename</th><th scope="col">Detect move</th><th scope="col">Full duplex transfer</th><th scope="col">Propagate deletes</th><th scope="col">Case sensitive</th><th scope="col"><a href="/facts/Delta_copying/2NQlyAUc">Delta transfer</a></th><th scope="col">LAN sync.</th><th scope="col"><a href="/facts/Peer-to-peer/wCCdPb0H">P2P</a> sync.</th></tr><tr><th scope="row"><a href="/facts/Mega_(service)/61VP5u2j">Mega</a></th><td>Windows, OS X, Linux, Android, iPhone, BlackBerry</td><td>Yes</td><td></td><td>Yes</td><td>Yes</td><td></td><td></td><td>Yes</td><td>Yes</td><td>Yes</td><td>Yes</td><td>Yes</td><td>Yes</td><td>No<a class="footnote-ref" id="fnref:36" href="#fn:36">36</a></td><td>No<a class="footnote-ref" id="fnref:37" href="#fn:37">37</a></td><td></td></tr><tr><th scope="row"><a href="/facts/RepliWeb/MNQH685J">RepliWeb</a></th><td>Windows, Linux</td><td>No</td><td></td><td></td><td>Partial</td><td></td><td></td><td>Yes</td><td>Yes</td><td>Yes</td><td>Yes</td><td>Yes</td><td>Yes</td><td></td><td></td><td></td></tr><tr><th scope="row"><a href="/facts/Resilio_Sync/61yYV3TB">Resilio Sync (ex. BitTorrent Sync)</a></th><td>Windows, OS X, Linux, Android, iOS, Windows Phone, Amazon Kindle Fire, FreeBSD</td><td>Limited</td><td>No</td><td>Yes, optional</td><td>Yes</td><td>No</td><td>No</td><td>Yes</td><td>Yes</td><td>Yes</td><td>Yes</td><td>Yes</td><td></td><td>Yes</td><td>Yes</td><td>Yes</td></tr><tr><th scope="row"><a href="/facts/Robocopy/LADzF98u">Robocopy</a></th><td>Windows</td><td>Yes</td><td>No</td><td></td><td>No</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><th scope="row"><a href="/facts/SecureSafe/RPlNwRm2">SecureSafe</a></th><td>Windows, OS X, Android, iOS</td><td>Yes</td><td></td><td></td><td>Yes</td><td>No</td><td></td><td>No</td><td>No</td><td>No</td><td>No</td><td>Yes</td><td>Yes</td><td>No</td><td>No</td><td></td></tr><tr><th scope="row"><a href="/facts/SpiderOak/EhtC8nXs">SpiderOak</a></th><td>Windows, OS X, Debian, Fedora, <a href="/facts/Slackware/eGJIIHgW">Slackware</a>, Android, iOS</td><td>No</td><td></td><td></td><td>No</td><td></td><td></td><td>Yes<a class="footnote-ref" id="fnref:38" href="#fn:38">38</a></td><td>No</td><td></td><td>No</td><td></td><td></td><td>Yes<a class="footnote-ref" id="fnref:39" href="#fn:39">39</a></td><td>Yes</td><td></td></tr><tr><th scope="row"><a href="/facts/ShareFile/IA2HGP60">ShareFile</a></th><td>Windows, OS X, Android, iPhone</td><td>Yes</td><td></td><td>Yes</td><td></td><td></td><td></td><td>Yes<a class="footnote-ref" id="fnref:40" href="#fn:40">40</a></td><td>Yes</td><td></td><td>Yes</td><td></td><td>Yes</td><td></td><td>Yes</td><td></td></tr><tr><th scope="row"><a href="/facts/Sharpcast/yHPTz3w9">SugarSync</a></th><td>Windows, OS X, Android, BlackBerry, iPhone, Windows Mobile</td><td>No</td><td>No</td><td></td><td>Yes</td><td></td><td></td><td>Yes<a class="footnote-ref" id="fnref:41" href="#fn:41">41</a></td><td>Yes</td><td>Yes</td><td></td><td>Yes</td><td></td><td></td><td></td><td></td></tr><tr><th scope="row"><a href="/facts/Syncdocs/tCCJbBn6">Syncdocs</a></th><td>Windows, <a href="/facts/Web_app/BLkF3BIN">web app</a></td><td>Betaversionsonly</td><td>Yes</td><td></td><td>Yes</td><td>No</td><td>Yes</td><td>Yes</td><td>Yes</td><td>Yes</td><td><a href="/facts/Microsoft_Word/HPSu5W4j">Microsoft Word</a> only<a class="footnote-ref" id="fnref:42" href="#fn:42">42</a></td><td>Yes</td><td></td><td></td><td></td><td></td></tr><tr><th scope="row"><a href="/facts/Synchronize_It/q9tD0sPW">Synchronize It</a>!</th><td>Windows</td><td>No</td><td></td><td></td><td>No</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><th scope="row"><a href="/facts/Syncovery/5Wy01uPG">Syncovery</a></th><td>Windows, OS X, Linux, FreeBSD</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><td>Yes</td><td>Yes</td><td>Yes</td><td>Yes</td><td>Yes</td><td></td></tr><tr><th scope="row"><a href="/facts/Syncplicity/w8rmA57G">Syncplicity</a></th><td>Windows, OS X, Android, iPhone, Windows Mobile</td><td>Yes</td><td></td><td></td><td>Yes</td><td></td><td></td><td>Yes</td><td></td><td></td><td>Yes</td><td>Yes</td><td></td><td>No<a class="footnote-ref" id="fnref:43" href="#fn:43">43</a></td><td>No</td><td></td></tr><tr><th scope="row"><a href="/facts/Tonido/CIVmd6ro">Tonido</a></th><td>Windows, OS X, Linux, Android, BlackBerry, iPhone, Windows Phone</td><td>Yes</td><td>Yes</td><td></td><td>Yes</td><td>No</td><td>Yes</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><th scope="row"><a href="/facts/Tresorit/yWEPvpJq">Tresorit</a></th><td>Windows, OS X, Linux, Android, BlackBerry, iOS, Windows Phone</td><td>Limited</td><td>Yes</td><td>Yes</td><td>Yes</td><td></td><td>Yes, for Windows</td><td>Yes</td><td></td><td></td><td></td><td>Yes</td><td>Yes</td><td>No</td><td></td><td></td></tr><tr><th scope="row"><a href="/facts/Ubuntu_One/rbCygp4p">Ubuntu One</a> (discontinued 2 April 2014)</th><td>Windows, OS X, Ubuntu, iOS, Android<a class="footnote-ref" id="fnref:44" href="#fn:44">44</a></td><td>Yes</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><th scope="row"><a href="/facts/Wuala/RjsqT7Bp">Wuala</a> (discontinued)</th><td>Windows, OS X, Debian, Ubuntu, Android, iOS</td><td>Yes</td><td></td><td>Yes</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><th scope="row"><a href="/facts/ZumoDrive/JA3rnp6H">ZumoDrive</a> (discontinued)</th><td>Windows, OS X, Linux, Android, iPhone, Palm webOS</td><td>Yes</td><td></td><td></td><td>Yes</td><td></td><td></td><td>Yes</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><th scope="row"><a href="/facts/Zetta.net/qEsY2juc">Zetta.net</a></th><td>Windows, OS X, Linux</td><td>No</td><td></td><td></td><td>Yes</td><td></td><td>Yes</td><td>Yes</td><td>Yes</td><td>Yes</td><td></td><td>Yes</td><td>Yes, Preserve file name case & file metadata</td><td>Yes</td><td>Yes</td><td></td></tr><tr><th scope="col">Name</th><th scope="col">Operating system</th><th scope="col">Freeware version</th><th scope="col">Portable</th><th scope="col">Encrypts files</th><th scope="col">Detect conflict</th><th scope="col">File lock</th><th scope="col">Open file support</th><th scope="col"><a href="/facts/Revision_control/pxCmFXqK">Revision control</a></th><th scope="col">Detect rename</th><th scope="col">Detect move</th><th scope="col">Full duplex transfer</th><th scope="col">Propagate deletes</th><th scope="col">Case sensitive</th><th scope="col"><a href="/facts/Delta_copying/2NQlyAUc">Delta transfer</a></th><th scope="col">LAN sync.</th><th scope="col"><a href="/facts/Peer-to-peer/wCCdPb0H">P2P</a> sync.</th></tr></tbody></table>
<h2 id="glossary">Glossary</h2>

<a href="/facts/Computing_platform/DmKwp5Bk">Platform</a>
<a href="/facts/Operating_system/8XTuvMh2">Operating system</a> & / or <a href="/facts/Software_platform/DmKwp5Bk">software platform</a> like <a href="/facts/Java_SE/1HMPhdsv">Java SE</a> or <a href="/facts/.NET_Framework/J6QDAUhP">.NET</a>.
<a href="/facts/Edit_conflict/LDXURlCM">Edit conflict</a> detection
Detect if an operation may result in data loss. See <a href="/facts/File_synchronization/CLEyRRpc">File Synchronization</a>
Renames/moves
Propagate renaming/moving of a file/directory. This saves bandwidth for remote systems but increases the analysis duration. Commonly done by calculating and storing <a href="/facts/Hash_function/rk6MlCt3">hash function</a> digests of files to detect if two files with different names, edit dates, etc., have identical contents. Programs which do not support it, will behave as if the originally-named file/directory has been deleted and the newly named file/directory is new and transmit the "new" file again.
<a href="/facts/Version_control/pxCmFXqK">Version control</a>
Can revert to a precedent version of a file/directory.
Scheduling or service
Run automatically (via a scheduler or as a system service), or manually for each sync.
Online storage
<a href="/facts/Online_file_storage/AWz9wQt8">Online file storage</a> option and type
<a href="/facts/Network-attached_storage/ABVjy8Tn">Network-attached storage</a>
Can sync. with NAS shares.
Only client needed
It is only needed to install synchronizing software on the client side. Server is only running arbitrary storage protocol like SFTP, SMB, NFS, etc. All synchronization logic is handled by client. This is generally good, because cheap cloud storage usually does not allow users to run custom software on storage server, they only provide access to storage.

<ul><li><a href="/facts/Backup_software/PeJBHS6L">Backup software</a>
<ul><li><a href="/facts/List_of_backup_software/kr0AFm1y">List of backup software</a></li>
<li><a href="/facts/Comparison_of_online_backup_services/jtHfHd31">Comparison of online backup services</a></li></ul></li>
<li><a href="/facts/Disk_cloning/0P2s4M4N">Disk cloning</a>
<ul><li><a href="/facts/Comparison_of_disk_cloning_software/detNAb59">Comparison of disk cloning software</a></li></ul></li>
<li><a href="/facts/Comparison_of_file_comparison_tools/ltkV4crG">Comparison of file comparison tools</a></li>
<li><a href="/facts/Comparison_of_file_hosting_services/jTawuoLq">Comparison of file hosting services</a></li>
<li><a href="/facts/Comparison_of_file_transfer_protocols/XGBF8I9C">Comparison of file transfer protocols</a></li>
<li><a href="/facts/Comparison_of_version-control_software/prfPW9sV">Comparison of version-control software</a></li></ul>

<h2 id="further-reading">Further reading</h2>
<ul><li>Kerner, Sean (2008-02-13). <a href="http://www.tomsguide.com/us/file-sync-backup,review-1060.html">"Get In Sync with File Syncing Software"</a>. Tom's Guide. Retrieved 2009-07-01.</li>
<li>Kerner, Sean (2008-02-27). <a href="http://www.tomsguide.com/us/file-syncing-software,review-1074.html">"Syncing Software Redux: More Options"</a>. Tom's Guide. Retrieved 2009-07-01.</li></ul>

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

<ol>
<li id="fn:1">"Index of /Sources/Conduit/0.3/". <a href="http://ftp.gnome.org/pub/GNOME/sources/conduit/0.3/" target="_blank">http://ftp.gnome.org/pub/GNOME/sources/conduit/0.3/</a> <a href="#fnref:1" class="footnote-back-ref">↩</a></li>
<li id="fn:2">"DirSync Pro". <a href="https://dirsyncpro.org/news.html" target="_blank">https://dirsyncpro.org/news.html</a> <a href="#fnref:2" class="footnote-back-ref">↩</a></li>
<li id="fn:3">"FreeFileSync". <a href="https://www.freefilesync.org/archive.php" target="_blank">https://www.freefilesync.org/archive.php</a> <a href="#fnref:3" class="footnote-back-ref">↩</a></li>
<li id="fn:4">"FreeFileSync Forum: Wording in FAQ conflicts with license". <a href="https://freefilesync.org/forum/viewtopic.php?t=11016" target="_blank">https://freefilesync.org/forum/viewtopic.php?t=11016</a> <a href="#fnref:4" class="footnote-back-ref">↩</a></li>
<li id="fn:5">"Free File Sync Software". Portable Edition. Archived from the original on 2018-01-11. Retrieved 30 January 2022. <a href="https://www.stugon.com/free-file-sync-software/" target="_blank">https://www.stugon.com/free-file-sync-software/</a> <a href="#fnref:5" class="footnote-back-ref">↩</a></li>
<li id="fn:6">"Frequently Asked Questions - FreeFileSync". Features. Archived from the original on 28 September 2017. Retrieved 28 September 2017. <a href="https://www.freefilesync.org/faq.php#features" target="_blank">https://www.freefilesync.org/faq.php#features</a> <a href="#fnref:6" class="footnote-back-ref">↩</a></li>
<li id="fn:7">"Frequently Asked Questions - FreeFileSync". Features. Archived from the original on 28 September 2017. Retrieved 28 September 2017. <a href="https://www.freefilesync.org/faq.php#features" target="_blank">https://www.freefilesync.org/faq.php#features</a> <a href="#fnref:7" class="footnote-back-ref">↩</a></li>
<li id="fn:8">"Frequently Asked Questions - FreeFileSync". Features. Archived from the original on 28 September 2017. Retrieved 28 September 2017. <a href="https://www.freefilesync.org/faq.php#features" target="_blank">https://www.freefilesync.org/faq.php#features</a> <a href="#fnref:8" class="footnote-back-ref">↩</a></li>
<li id="fn:9">"Frequently Asked Questions - FreeFileSync". Features. Archived from the original on 28 September 2017. Retrieved 28 September 2017. <a href="https://www.freefilesync.org/faq.php#features" target="_blank">https://www.freefilesync.org/faq.php#features</a> <a href="#fnref:9" class="footnote-back-ref">↩</a></li>
<li id="fn:10">Akerlund, Geoff (June 2014), FreeFileSync comes bundled with the OpenCandy malware., Backup Review, retrieved 2 February 2018 <a href="http://www.backupreview.com/freefilesync-review/" target="_blank">http://www.backupreview.com/freefilesync-review/</a> <a href="#fnref:10" class="footnote-back-ref">↩</a></li>
<li id="fn:11">FFS FAQ, retrieved 27 June 2018 <a href="https://freefilesync.org/faq.php#advertisement" target="_blank">https://freefilesync.org/faq.php#advertisement</a> <a href="#fnref:11" class="footnote-back-ref">↩</a></li>
<li id="fn:12">"Releases · ipfs/kubo". GitHub. <a href="https://github.com/ipfs/kubo/releases" target="_blank">https://github.com/ipfs/kubo/releases</a> <a href="#fnref:12" class="footnote-back-ref">↩</a></li>
<li id="fn:13">"Versioning: Commit + Repo Datastructures · Issue #23 · ipfs/notes". GitHub. Archived from the original on 2019-02-14. Retrieved 2019-02-14. <a href="https://web.archive.org/web/20190214170648/https://github.com/ipfs/notes/issues/23" target="_blank">https://web.archive.org/web/20190214170648/https://github.com/ipfs/notes/issues/23</a> <a href="#fnref:13" class="footnote-back-ref">↩</a></li>
<li id="fn:14">"LuckyBackup - backup and sync utility". <a href="http://luckybackup.sourceforge.net/news.html" target="_blank">http://luckybackup.sourceforge.net/news.html</a> <a href="#fnref:14" class="footnote-back-ref">↩</a></li>
<li id="fn:15">"Nextcloud". GitHub. Retrieved 18 January 2017. <a href="https://github.com/nextcloud" target="_blank">https://github.com/nextcloud</a> <a href="#fnref:15" class="footnote-back-ref">↩</a></li>
<li id="fn:16">"Yes on desktop, but NO on mobile - Issue 19". GitHub. <a href="https://github.com/nextcloud/android/issues/19" target="_blank">https://github.com/nextcloud/android/issues/19</a> <a href="#fnref:16" class="footnote-back-ref">↩</a></li>
<li id="fn:17">"ownCloud". GitHub. Retrieved 2015-07-13. <a href="https://github.com/owncloud" target="_blank">https://github.com/owncloud</a> <a href="#fnref:17" class="footnote-back-ref">↩</a></li>
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<li id="fn:24">"haiwen/seafile". GitHub. Retrieved 2015-07-13. <a href="https://github.com/haiwen/seafile" target="_blank">https://github.com/haiwen/seafile</a> <a href="#fnref:24" class="footnote-back-ref">↩</a></li>
<li id="fn:25">"Seafile clients". Seafile. Retrieved 2019-11-14. <a href="https://www.seafile.com/en/download/" target="_blank">https://www.seafile.com/en/download/</a> <a href="#fnref:25" class="footnote-back-ref">↩</a></li>
<li id="fn:26">Bons, Hylke (2019-02-12), Share and collaborate by syncing with any Git repository instantly. Linux, macOS, and Windows.: hbons/SparkleShare, archived from the original on 2019-02-14, retrieved 2019-02-14 <a href="https://github.com/hbons/SparkleShare" target="_blank">https://github.com/hbons/SparkleShare</a> <a href="#fnref:26" class="footnote-back-ref">↩</a></li>
<li id="fn:27">"Möbius Sync". <a href="https://www.mobiussync.com/" target="_blank">https://www.mobiussync.com/</a> <a href="#fnref:27" class="footnote-back-ref">↩</a></li>
<li id="fn:28">"Synkron 1.6.2 released - Synkron Documentation". sites.google.com. <a href="https://sites.google.com/site/synkrondocumentation/news/synkron162" target="_blank">https://sites.google.com/site/synkrondocumentation/news/synkron162</a> <a href="#fnref:28" class="footnote-back-ref">↩</a></li>
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<li id="fn:30">"Release 2.53.4". GitHub. Retrieved 2024-02-24. <a href="https://github.com/bcpierce00/unison/releases/tag/v2.53.4" target="_blank">https://github.com/bcpierce00/unison/releases/tag/v2.53.4</a> <a href="#fnref:30" class="footnote-back-ref">↩</a></li>
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<li id="fn:39">"Does SpiderOak backup the whole file every time it changes?". SpiderOak. Archived from the original on 11 April 2013. Retrieved 24 February 2013. <a href="https://archive.today/20130411205527/https://spideroak.com/faq/questions/7/does_spideroak_backup_the_whole_file_every_time_it_changes/" target="_blank">https://archive.today/20130411205527/https://spideroak.com/faq/questions/7/does_spideroak_backup_the_whole_file_every_time_it_changes/</a> <a href="#fnref:39" class="footnote-back-ref">↩</a></li>
<li id="fn:40">Citrix ShareFile. "File Versioning". Citrix ShareFile. Archived from the original on 2015-05-13. Retrieved 2015-01-10. <a href="https://web.archive.org/web/20150513205010/http://support.citrixonline.com/en_US/ShareFile/help_files/SF030020?Title=File+Versioning" target="_blank">https://web.archive.org/web/20150513205010/http://support.citrixonline.com/en_US/ShareFile/help_files/SF030020?Title=File+Versioning</a> <a href="#fnref:40" class="footnote-back-ref">↩</a></li>
<li id="fn:41">"See How SugarSync Stacks up to the Competition". SugarSync (formerly called SharpCast). Retrieved 2010-01-13. <a href="https://www.sugarsync.com/sync_comparison.html" target="_blank">https://www.sugarsync.com/sync_comparison.html</a> <a href="#fnref:41" class="footnote-back-ref">↩</a></li>
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<li id="fn:43">"Why Delta Sync Doesn't Matter". 2009-07-20. Retrieved 2014-05-21. <a href="https://www.syncplicity.com/blog/why-delta-sync-doesn-t-matter" target="_blank">https://www.syncplicity.com/blog/why-delta-sync-doesn-t-matter</a> <a href="#fnref:43" class="footnote-back-ref">↩</a></li>
<li id="fn:44">"Ubuntu One:Downloads". Ubuntu One. Archived from the original on 9 August 2011. Retrieved 14 April 2013. <a href="https://web.archive.org/web/20110809233713/https://one.ubuntu.com/downloads/" target="_blank">https://web.archive.org/web/20110809233713/https://one.ubuntu.com/downloads/</a> <a href="#fnref:44" class="footnote-back-ref">↩</a></li>
</ol>

Comparison of file synchronization software open-in-new

Comparison of file synchronization software