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</div> </div> <div id="bodyContent" class="vector-body" aria-labelledby="firstHeading" data-mw-ve-target-container> <div class="vector-body-before-content"> <div class="mw-indicators"> </div> <div id="siteSub" class="noprint">From Wikipedia, the free encyclopedia</div> </div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="en" dir="ltr"><p class="mw-empty-elt"> </p> <style data-mw-deduplicate="TemplateStyles:r1251242444">.mw-parser-output .ambox{border:1px solid #a2a9b1;border-left:10px solid #36c;background-color:#fbfbfb;box-sizing:border-box}.mw-parser-output .ambox+link+.ambox,.mw-parser-output .ambox+link+style+.ambox,.mw-parser-output .ambox+link+link+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+style+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+link+.ambox{margin-top:-1px}html body.mediawiki .mw-parser-output .ambox.mbox-small-left{margin:4px 1em 4px 0;overflow:hidden;width:238px;border-collapse:collapse;font-size:88%;line-height:1.25em}.mw-parser-output .ambox-speedy{border-left:10px solid #b32424;background-color:#fee7e6}.mw-parser-output .ambox-delete{border-left:10px solid #b32424}.mw-parser-output .ambox-content{border-left:10px solid #f28500}.mw-parser-output .ambox-style{border-left:10px solid #fc3}.mw-parser-output .ambox-move{border-left:10px solid #9932cc}.mw-parser-output .ambox-protection{border-left:10px solid #a2a9b1}.mw-parser-output .ambox .mbox-text{border:none;padding:0.25em 0.5em;width:100%}.mw-parser-output .ambox .mbox-image{border:none;padding:2px 0 2px 0.5em;text-align:center}.mw-parser-output .ambox .mbox-imageright{border:none;padding:2px 0.5em 2px 0;text-align:center}.mw-parser-output .ambox .mbox-empty-cell{border:none;padding:0;width:1px}.mw-parser-output .ambox .mbox-image-div{width:52px}@media(min-width:720px){.mw-parser-output .ambox{margin:0 10%}}@media print{body.ns-0 .mw-parser-output .ambox{display:none!important}}</style><table class="box-More_citations_needed plainlinks metadata ambox ambox-content ambox-Refimprove" role="presentation"><tbody><tr><td class="mbox-image"><div class="mbox-image-div"><span typeof="mw:File"><a href="/wiki/File:Question_book-new.svg" class="mw-file-description"><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/9/99/Question_book-new.svg/50px-Question_book-new.svg.png" decoding="async" width="50" height="39" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/9/99/Question_book-new.svg/75px-Question_book-new.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/9/99/Question_book-new.svg/100px-Question_book-new.svg.png 2x" data-file-width="512" data-file-height="399" /></a></span></div></td><td class="mbox-text"><div class="mbox-text-span">This article <b>needs additional citations for <a href="/wiki/Wikipedia:Verifiability" title="Wikipedia:Verifiability">verification</a></b>.<span class="hide-when-compact"> Please help <a href="/wiki/Special:EditPage/List_of_free_and_open-source_web_applications" title="Special:EditPage/List of free and open-source web applications">improve this article</a> by <a href="/wiki/Help:Referencing_for_beginners" title="Help:Referencing for beginners">adding citations to reliable sources</a>. Unsourced material may be challenged and removed.<br /><small><span class="plainlinks"><i>Find sources:</i> <a rel="nofollow" class="external text" href="https://www.google.com/search?as_eq=wikipedia&q=%22List+of+free+and+open-source+web+applications%22">"List of free and open-source web applications"</a> – <a rel="nofollow" class="external text" href="https://www.google.com/search?tbm=nws&q=%22List+of+free+and+open-source+web+applications%22+-wikipedia&tbs=ar:1">news</a> <b>·</b> <a rel="nofollow" class="external text" href="https://www.google.com/search?&q=%22List+of+free+and+open-source+web+applications%22&tbs=bkt:s&tbm=bks">newspapers</a> <b>·</b> <a rel="nofollow" class="external text" href="https://www.google.com/search?tbs=bks:1&q=%22List+of+free+and+open-source+web+applications%22+-wikipedia">books</a> <b>·</b> <a rel="nofollow" class="external text" href="https://scholar.google.com/scholar?q=%22List+of+free+and+open-source+web+applications%22">scholar</a> <b>·</b> <a rel="nofollow" class="external text" href="https://www.jstor.org/action/doBasicSearch?Query=%22List+of+free+and+open-source+web+applications%22&acc=on&wc=on">JSTOR</a></span></small></span> <span class="date-container"><i>(<span class="date">November 2023</span>)</i></span><span class="hide-when-compact"><i> (<small><a href="/wiki/Help:Maintenance_template_removal" title="Help:Maintenance template removal">Learn how and when to remove this message</a></small>)</i></span></div></td></tr></tbody></table> <p>All <a href="/wiki/Web_applications" class="mw-redirect" title="Web applications">web applications</a>, both traditional and <a href="/wiki/Web_2.0" title="Web 2.0">Web 2.0</a>, are operated by software running somewhere. This is a list of <a href="/wiki/Free_software" title="Free software">free software</a> which can be used to run alternative web applications. Also listed are similar <a href="/wiki/Proprietary_software" title="Proprietary software">proprietary</a> web applications that users may be familiar with. Most of this software is <a href="/wiki/Server-side" class="mw-redirect" title="Server-side">server-side</a> software, often running on a <a href="/wiki/Web_server" title="Web server">web server</a>. </p> <table class="wikitable sortable" style="font-size: small; text-align: center; width: auto;"> <tbody><tr> <th>Application </th> <th>Service </th> <th>License </th> <th>Requirements </th> <th>Similar <a href="/wiki/Proprietary_software" title="Proprietary software">proprietary</a> web application(s) </th></tr> <tr> <td><a href="/wiki/Collabora_Online" title="Collabora Online">Collabora Online</a> </td> <td><a href="/wiki/Online_office_suite" title="Online office suite">Online office suite</a> </td> <td><a href="/wiki/Mozilla_Public_License" title="Mozilla Public License">MPLv2.0</a> </td> <td> </td> <td><a href="/wiki/Google_Docs" title="Google Docs">Google Docs</a>, <a href="/wiki/Microsoft_365" title="Microsoft 365">Microsoft 365</a> </td></tr> <tr> <td><a href="/wiki/Gallery_Project" title="Gallery Project">Gallery</a> </td> <td><a href="/wiki/Photo_sharing" class="mw-redirect" title="Photo sharing">Photo sharing</a> </td> <td><a href="/wiki/GNU_General_Public_License_Version_3" class="mw-redirect" title="GNU General Public License Version 3">GPLv3</a> </td> <td><a href="/wiki/PHP" title="PHP">PHP</a> + <a href="/wiki/MySQL" title="MySQL">MySQL</a><sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </td> <td><a href="/wiki/Flickr" title="Flickr">flickr</a>, <a href="/wiki/Picasa" title="Picasa">Picasa</a> </td></tr> <tr> <td><a href="/wiki/Piwigo" title="Piwigo">Piwigo</a> </td> <td><a href="/wiki/Photo_sharing" class="mw-redirect" title="Photo sharing">Photo sharing</a> </td> <td><a href="/wiki/GNU_General_Public_License" title="GNU General Public License">GPL</a> </td> <td><a href="/wiki/PHP" title="PHP">PHP</a> + <a href="/wiki/MariaDB" title="MariaDB">MariaDB</a> / <a href="/wiki/MySQL" title="MySQL">MySQL</a><sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> </td> <td><a href="/wiki/Flickr" title="Flickr">flickr</a>, <a href="/wiki/Picasa" title="Picasa">Picasa</a> </td></tr> <tr> <td><a href="/wiki/OpenBroadcaster" title="OpenBroadcaster">OpenBroadcaster</a> </td> <td><a href="/wiki/Video_streaming" class="mw-redirect" title="Video streaming">Video streaming</a> </td> <td><a href="/wiki/GNU_Affero_General_Public_License" title="GNU Affero General Public License">AGPLv3+</a> </td> <td><a href="/wiki/MySQL" title="MySQL">MySQL</a> </td> <td><a href="/wiki/YouTube" title="YouTube">YouTube</a> </td></tr> <tr> <td><a href="/wiki/Plumi" title="Plumi">Plumi</a> </td> <td><a href="/wiki/Video_streaming" class="mw-redirect" title="Video streaming">Video streaming</a> </td> <td><a href="/wiki/GNU_General_Public_License" title="GNU General Public License">GPL</a> | <a href="/wiki/Zope_Public_License" title="Zope Public License">ZPL</a> </td> <td> </td> <td><a href="/wiki/YouTube" title="YouTube">YouTube</a> </td></tr> <tr> <td><a href="/wiki/PeerTube" title="PeerTube">PeerTube</a> </td> <td><a href="/wiki/Video_streaming" class="mw-redirect" title="Video streaming">Video streaming</a> </td> <td><a href="/wiki/GNU_Affero_General_Public_License" title="GNU Affero General Public License">AGPLv3+</a> </td> <td> </td> <td><a href="/wiki/YouTube" title="YouTube">YouTube</a> </td></tr> <tr> <td><a href="/wiki/Libre.fm" title="Libre.fm">Libre.fm</a> </td> <td><a href="/wiki/Music_streaming" class="mw-redirect" title="Music streaming">Music streaming</a> </td> <td><a href="/wiki/GNU_Affero_General_Public_License" title="GNU Affero General Public License">AGPLv3+</a> </td> <td><a href="/wiki/PostgreSQL" title="PostgreSQL">PostgreSQL</a> or <a href="/wiki/MySQL" title="MySQL">MySQL</a> </td> <td><a href="/wiki/Last.fm" title="Last.fm">last.fm</a> </td></tr> <tr> <td><a href="/wiki/CiteSeerX" title="CiteSeerX">CiteSeerX</a> </td> <td><a href="/wiki/Bibliographic_database" title="Bibliographic database">Bibliographic database</a> </td> <td><a href="/wiki/Apache_License" title="Apache License">Apache</a> </td> <td><a href="/wiki/MySQL" title="MySQL">MySQL</a> or <a href="/wiki/PostgreSQL" title="PostgreSQL">PostgreSQL</a> </td> <td><a href="/wiki/SpringerLink" class="mw-redirect" title="SpringerLink">SpringerLink</a> </td></tr> <tr> <td><a href="/wiki/OpenStreetMap" title="OpenStreetMap">OpenStreetMap</a> </td> <td><a href="/wiki/Cartography" title="Cartography">Mapping</a> </td> <td><a href="/wiki/Open_Database_License" title="Open Database License">ODbL</a> </td> <td><a href="/wiki/MySQL" title="MySQL">MySQL</a> or <a href="/wiki/PostgreSQL" title="PostgreSQL">PostgreSQL</a> </td> <td><a href="/wiki/Google_Maps" title="Google Maps">Google Maps</a> </td></tr> <tr> <td><a href="/wiki/OwnCloud" title="OwnCloud">ownCloud</a> </td> <td><a href="/wiki/File_sharing" title="File sharing">File sharing</a>/<a href="/wiki/File_synchronization" title="File synchronization">sync</a>, <a href="/wiki/Web_calendar" class="mw-redirect" title="Web calendar">web calendar</a>, <a href="/wiki/Online_office_suite" title="Online office suite">online office suite</a> etc. </td> <td><a href="/wiki/GNU_Affero_General_Public_License" title="GNU Affero General Public License">AGPLv3</a> </td> <td> </td> <td><a href="/wiki/Dropbox_(service)" class="mw-redirect" title="Dropbox (service)">Dropbox</a>, <a href="/wiki/Drop.io" title="Drop.io">drop.io</a> </td></tr> <tr> <td><a href="/wiki/Nextcloud" title="Nextcloud">Nextcloud</a> </td> <td><a href="/wiki/File_sharing" title="File sharing">File sharing</a>/<a href="/wiki/File_synchronization" title="File synchronization">sync</a>, <a href="/wiki/Web_calendar" class="mw-redirect" title="Web calendar">web calendar</a>, <a href="/wiki/Online_office_suite" title="Online office suite">online office suite</a> etc. </td> <td><a href="/wiki/GNU_Affero_General_Public_License" title="GNU Affero General Public License">AGPLv3+</a> </td> <td><a href="/wiki/PHP" title="PHP">PHP</a> + <a href="/wiki/MariaDB" title="MariaDB">MariaDB</a> / <a href="/wiki/MySQL" title="MySQL">MySQL</a> / <a href="/wiki/Oracle_Database" title="Oracle Database">Oracle</a> / <a href="/wiki/PostgreSQL" title="PostgreSQL">PostgreSQL</a> / <a href="/wiki/SQLite" title="SQLite">SQLite</a><sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </td> <td><a href="/wiki/Dropbox_(service)" class="mw-redirect" title="Dropbox (service)">Dropbox</a>, <a href="/wiki/Google_Drive" title="Google Drive">Google Drive</a>, <a href="/wiki/Microsoft_365" title="Microsoft 365">Microsoft 365</a>, <a href="/wiki/Box_(company)" class="mw-redirect" title="Box (company)">box</a> </td></tr> <tr> <td><a href="/wiki/Seafile" title="Seafile">Seafile</a> </td> <td><a href="/wiki/File_sharing" title="File sharing">File sharing</a>/<a href="/wiki/File_synchronization" title="File synchronization">sync</a>, <a href="/wiki/Web_calendar" class="mw-redirect" title="Web calendar">web calendar</a>, <a href="/wiki/Online_office_suite" title="Online office suite">online office suite</a> etc. </td> <td><a href="/wiki/GNU_General_Public_License" title="GNU General Public License">GPLv2</a> </td> <td> </td> <td><a href="/wiki/Dropbox_(service)" class="mw-redirect" title="Dropbox (service)">Dropbox</a>, <a href="/wiki/Drop.io" title="Drop.io">drop.io</a> </td></tr> <tr> <td><a href="/wiki/Tahoe-LAFS" title="Tahoe-LAFS">Tahoe Least-Authority File Store</a> </td> <td><a href="/wiki/File_sharing" title="File sharing">File sharing</a> </td> <td><a href="/wiki/GNU_General_Public_License" title="GNU General Public License">GPLv2+</a> </td> <td> </td> <td><a href="/wiki/Dropbox_(service)" class="mw-redirect" title="Dropbox (service)">Dropbox</a>, <a href="/wiki/Drop.io" title="Drop.io">drop.io</a> </td></tr> <tr> <td><a href="/wiki/IFolder" title="IFolder">iFolder</a> </td> <td><a href="/wiki/File_sharing" title="File sharing">File sharing</a> </td> <td><a href="/wiki/GNU_General_Public_License" title="GNU General Public License">GPLv2+</a> </td> <td> </td> <td><a href="/wiki/Dropbox_(service)" class="mw-redirect" title="Dropbox (service)">Dropbox</a>, <a href="/wiki/Drop.io" title="Drop.io">drop.io</a> </td></tr> <tr> <td><a href="/wiki/Abiword" class="mw-redirect" title="Abiword">AbiCollab</a> </td> <td><a href="/wiki/Online_file_editing" class="mw-redirect" title="Online file editing">Online file editing</a> </td> <td><a href="/wiki/GNU_General_Public_License" title="GNU General Public License">GPLv2</a> </td> <td><a href="/wiki/MySQL" title="MySQL">MySQL</a> or <a href="/wiki/PostgreSQL" title="PostgreSQL">PostgreSQL</a> </td> <td><a href="/wiki/Google_Docs" title="Google Docs">Google Docs</a> </td></tr> <tr> <td><a href="/wiki/Etherpad" title="Etherpad">Etherpad</a> </td> <td><a href="/wiki/Online_file_editing" class="mw-redirect" title="Online file editing">Online file editing</a> </td> <td><a href="/wiki/Apache_Licence" class="mw-redirect" title="Apache Licence">Apache</a> </td> <td><a href="/wiki/MySQL" title="MySQL">MySQL</a> or <a href="/wiki/PostgreSQL" title="PostgreSQL">PostgreSQL</a> </td> <td><a href="/wiki/Google_Docs" title="Google Docs">Google Docs</a> </td></tr> <tr> <td><a href="/wiki/Eucalyptus_(computing)" class="mw-redirect" title="Eucalyptus (computing)">Eucalyptus (computing)</a> </td> <td>Virtual machine provisioning </td> <td><a href="/wiki/GNU_General_Public_License" title="GNU General Public License">GPLv3</a> </td> <td> </td> <td><a href="/wiki/Amazon_EC2" class="mw-redirect" title="Amazon EC2">Amazon EC2</a> </td></tr> <tr> <td><a href="/wiki/OpenNebula" title="OpenNebula">OpenNebula</a> </td> <td>Virtual machine provisioning </td> <td><a href="/wiki/Apache_License" title="Apache License">Apache</a> </td> <td><a href="/wiki/SQLite3" class="mw-redirect" title="SQLite3">SQLite3</a> </td> <td><a href="/wiki/Amazon_EC2" class="mw-redirect" title="Amazon EC2">Amazon EC2</a> </td></tr> <tr> <td><a href="/wiki/DokuWiki" title="DokuWiki">DokuWiki</a> </td> <td><a href="/wiki/Wiki" title="Wiki">Wiki</a> </td> <td><a href="/wiki/GNU_General_Public_License" title="GNU General Public License">GPLv2</a> </td> <td> </td> <td><a href="/wiki/Wikispaces" title="Wikispaces">Wikispaces</a> </td></tr> <tr> <td><a href="/wiki/MediaWiki" title="MediaWiki">MediaWiki</a> </td> <td><a href="/wiki/Wiki" title="Wiki">Wiki</a> </td> <td><a href="/wiki/GNU_General_Public_License" title="GNU General Public License">GPLv2+</a> </td> <td><a href="/wiki/MySQL" title="MySQL">MySQL</a> or <a href="/wiki/PostgreSQL" title="PostgreSQL">PostgreSQL</a> </td> <td><a href="/wiki/Wikispaces" title="Wikispaces">Wikispaces</a> </td></tr> <tr> <td><a href="/wiki/TiddlyWiki" title="TiddlyWiki">TiddlyWiki</a> </td> <td><a href="/wiki/Wiki" title="Wiki">Wiki</a> </td> <td><a href="/wiki/BSD_licenses" title="BSD licenses">BSD license</a> </td> <td><a href="/wiki/Web_browser" title="Web browser">Web browser</a> </td> <td><a href="/wiki/Evernote" title="Evernote">Evernote</a>, <a href="/wiki/Microsoft_OneNote" title="Microsoft OneNote">Microsoft OneNote</a> </td></tr> <tr> <td><a href="/wiki/Open_Journal_Systems" title="Open Journal Systems">Open Journal Systems</a> </td> <td><a href="/wiki/Publication_management" class="mw-redirect" title="Publication management">Publication management</a> </td> <td><a href="/wiki/GNU_General_Public_License" title="GNU General Public License">GPLv2</a> </td> <td><a href="/wiki/MySQL" title="MySQL">MySQL</a> or <a href="/wiki/PostgreSQL" title="PostgreSQL">PostgreSQL</a> </td> <td> </td></tr> <tr> <td><a href="/wiki/WordPress" title="WordPress">WordPress</a> </td> <td><a href="/wiki/Blogging" class="mw-redirect" title="Blogging">Blogging</a> </td> <td><a href="/wiki/GNU_General_Public_License" title="GNU General Public License">GPLv2</a> </td> <td><a href="/wiki/PHP" title="PHP">PHP</a> + <a href="/wiki/MariaDB" title="MariaDB">MariaDB</a> / <a href="/wiki/MySQL" title="MySQL">MySQL</a><sup id="cite_ref-4" class="reference"><a href="#cite_note-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> </td> <td><a href="/wiki/Blogger.com" class="mw-redirect" title="Blogger.com">blogger.com</a> </td></tr> <tr> <td><a href="/wiki/LiveJournal" title="LiveJournal">LiveJournal</a> </td> <td><a href="/wiki/Blogging" class="mw-redirect" title="Blogging">Blogging</a> </td> <td><a href="/wiki/GNU_General_Public_License#Version_2" title="GNU General Public License">GPLv2+</a> </td> <td> </td> <td><a href="/wiki/Blogger.com" class="mw-redirect" title="Blogger.com">blogger.com</a> </td></tr> <tr> <td><a href="/wiki/Ghost_(blogging_platform)" title="Ghost (blogging platform)">Ghost</a> </td> <td><a href="/wiki/Blogging" class="mw-redirect" title="Blogging">Blogging</a> </td> <td><a href="/wiki/MIT_License" title="MIT License">MIT License</a> </td> <td><a href="/wiki/JavaScript" title="JavaScript">JavaScript</a>, <a href="/wiki/Node.js" title="Node.js">node.js</a> </td> <td><a href="/wiki/Blogger.com" class="mw-redirect" title="Blogger.com">blogger.com</a> </td></tr> <tr> <td><a href="/wiki/GNU_Social" class="mw-redirect" title="GNU Social">GNU Social</a> </td> <td><a href="/wiki/Distributed_social_network" title="Distributed social network">Distributed social network</a> </td> <td><a href="/wiki/GNU_Affero_General_Public_License" title="GNU Affero General Public License">AGPLv3</a> </td> <td><a href="/wiki/MySQL" title="MySQL">MySQL</a> or <a href="/wiki/PostgreSQL" title="PostgreSQL">PostgreSQL</a> </td> <td><a href="/wiki/Twitter" title="Twitter">Twitter</a> </td></tr> <tr> <td><a href="/wiki/Mastodon_(software)" class="mw-redirect" title="Mastodon (software)">Mastodon</a> </td> <td><a href="/wiki/Distributed_social_network" title="Distributed social network">Distributed social network</a> </td> <td><a href="/wiki/GNU_Affero_General_Public_License" title="GNU Affero General Public License">AGPLv3</a> </td> <td><a href="/wiki/PostgreSQL" title="PostgreSQL">PostgreSQL</a> </td> <td><a href="/wiki/Twitter" title="Twitter">Twitter</a> </td></tr> <tr> <td><a href="/wiki/AppScale" title="AppScale">AppScale</a> </td> <td><a href="/wiki/Virtual_web_hosting" class="mw-redirect" title="Virtual web hosting">Virtual web hosting</a> </td> <td><a href="/wiki/BSD_license" class="mw-redirect" title="BSD license">BSD</a> </td> <td> </td> <td><a href="/wiki/Google_AppEngine" class="mw-redirect" title="Google AppEngine">Google AppEngine</a> </td></tr> <tr> <td><a href="/wiki/PHPGroupware" class="mw-redirect" title="PHPGroupware">PHPGroupware</a> </td> <td><a href="/wiki/Online_office_suite" title="Online office suite">Online office suite</a> </td> <td><a href="/wiki/GNU_General_Public_License" title="GNU General Public License">GPLv2</a> </td> <td> </td> <td><a href="/wiki/Google_Docs" title="Google Docs">Google Docs</a> </td></tr> <tr> <td><a href="/wiki/EGroupware" title="EGroupware">eGroupware</a> </td> <td><a href="/wiki/Online_office_suite" title="Online office suite">Online office suite</a> </td> <td><a href="/wiki/GNU_General_Public_License" title="GNU General Public License">GPLv2</a> </td> <td> </td> <td><a href="/wiki/Google_Docs" title="Google Docs">Google Docs</a> </td></tr> <tr> <td><a href="/wiki/Feng_Office" title="Feng Office">Feng Office</a> </td> <td><a href="/wiki/Online_office_suite" title="Online office suite">Online office suite</a> </td> <td><a href="/wiki/GNU_Affero_General_Public_License" title="GNU Affero General Public License">AGPL</a> </td> <td> </td> <td><a href="/wiki/Google_Docs" title="Google Docs">Google Docs</a> </td></tr> <tr> <td><a href="/wiki/Roundcube" title="Roundcube">Roundcube</a> </td> <td><a href="/wiki/WebMail" class="mw-redirect" title="WebMail">Web mail</a> </td> <td><a href="/wiki/GNU_General_Public_License" title="GNU General Public License">GPLv3+</a> with exceptions for skins and plugins </td> <td> </td> <td><a href="/wiki/Gmail" title="Gmail">Gmail</a>, <a href="/wiki/Hotmail" class="mw-redirect" title="Hotmail">Hotmail</a> </td></tr> <tr> <td><a href="/wiki/Internet_Messaging_Program" title="Internet Messaging Program">IMP</a> </td> <td><a href="/wiki/WebMail" class="mw-redirect" title="WebMail">Web mail</a> </td> <td><a href="/wiki/GPLv2" class="mw-redirect" title="GPLv2">GPLv2</a> </td> <td><a href="/wiki/IMAP" class="mw-redirect" title="IMAP">IMAP</a> server </td> <td><a href="/wiki/Gmail" title="Gmail">Gmail</a>, <a href="/wiki/Hotmail" class="mw-redirect" title="Hotmail">Hotmail</a> </td></tr> <tr> <td><a href="/wiki/Squirrelmail" class="mw-redirect" title="Squirrelmail">Squirrelmail</a> </td> <td><a href="/wiki/WebMail" class="mw-redirect" title="WebMail">Web mail</a> </td> <td><a href="/wiki/GNU_General_Public_License" title="GNU General Public License">GPLv2</a> </td> <td> </td> <td><a href="/wiki/Gmail" title="Gmail">Gmail</a>, <a href="/wiki/Hotmail" class="mw-redirect" title="Hotmail">Hotmail</a> </td></tr> <tr> <td><a href="/wiki/Mailman_(GNU)" class="mw-redirect" title="Mailman (GNU)">Mailman</a> </td> <td><a href="/wiki/Mailing_lists" class="mw-redirect" title="Mailing lists">Mailing lists</a> </td> <td><a href="/wiki/GNU_General_Public_License" title="GNU General Public License">GPL</a> </td> <td> </td> <td><a href="/wiki/Google_Groups" title="Google Groups">Google Groups</a>, <a href="/wiki/Yahoo_Groups" title="Yahoo Groups">Yahoo Groups</a> </td></tr> <tr> <td><a href="/wiki/FluxBB" class="mw-redirect" title="FluxBB">FluxBB</a> </td> <td><a href="/wiki/Internet_forum" title="Internet forum">Forum</a> </td> <td><a href="/wiki/GNU_General_Public_License" title="GNU General Public License">GPLv2</a> </td> <td> </td> <td> </td></tr> <tr> <td><a href="/wiki/PhpBB" title="PhpBB">phpBB</a> </td> <td><a href="/wiki/Internet_forum" title="Internet forum">Forum</a> </td> <td><a href="/wiki/GNU_General_Public_License" title="GNU General Public License">GPLv2</a> </td> <td> </td> <td> </td></tr> <tr> <td><a href="/wiki/MyBB" title="MyBB">MyBB</a> </td> <td><a href="/wiki/Internet_forum" title="Internet forum">Forum</a> </td> <td><a href="/wiki/GNU_LGPL" class="mw-redirect" title="GNU LGPL">GNU LGPL</a> </td> <td> </td> <td> </td></tr> <tr> <td><a href="/wiki/Phorum" title="Phorum">Phorum</a> </td> <td><a href="/wiki/Internet_forum" title="Internet forum">Forum</a> </td> <td>Phorum 2.0 </td> <td> </td> <td> </td></tr> <tr> <td><a href="/wiki/Vanilla_(forum)" class="mw-redirect" title="Vanilla (forum)">Vanilla</a> </td> <td><a href="/wiki/Internet_forum" title="Internet forum">Forum</a> </td> <td><a href="/wiki/GNU_General_Public_License" title="GNU General Public License">GPLv2</a> </td> <td> </td> <td> </td></tr> <tr> <td><a href="/wiki/Discourse_(software)" title="Discourse (software)">Discourse</a> </td> <td><a href="/wiki/Internet_forum" title="Internet forum">Forum</a> </td> <td><a href="/wiki/GNU_General_Public_License" title="GNU General Public License">GPLv2+</a> </td> <td> </td> <td> </td></tr> <tr> <td><a href="/wiki/LimeSurvey" title="LimeSurvey">LimeSurvey</a> </td> <td><a href="/wiki/Internet_survey" class="mw-redirect" title="Internet survey">Internet survey</a> </td> <td><a href="/wiki/GNU_General_Public_License#Version_2" title="GNU General Public License">GPLv2</a> </td> <td> </td> <td><a href="/wiki/SurveyMonkey" title="SurveyMonkey">SurveyMonkey</a>, <a href="/wiki/Google_Docs" title="Google Docs">Google Form creator</a> </td></tr> <tr> <td><a href="/wiki/Tiny_Tiny_RSS" title="Tiny Tiny RSS">Tiny Tiny RSS</a> </td> <td><a href="/wiki/RSS_reader" class="mw-redirect" title="RSS reader">RSS reader</a> </td> <td><a href="/wiki/GNU_General_Public_License" title="GNU General Public License">GPLv3</a> </td> <td> </td> <td><a href="/wiki/Google_Reader" title="Google Reader">Google Reader</a> </td></tr> <tr> <td><a href="/wiki/Pump.io" title="Pump.io">pump.io</a> </td> <td><a href="/wiki/Social_network_aggregation" title="Social network aggregation">Social aggregation</a> </td> <td><a href="/wiki/Apache_License" title="Apache License">Apache</a> </td> <td> </td> <td><a href="/wiki/FriendFeed" title="FriendFeed">FriendFeed</a> </td></tr> <tr> <td><a href="/wiki/Meneame" class="mw-redirect" title="Meneame">Meneame</a> </td> <td><a href="/wiki/Social_news" class="mw-redirect" title="Social news">Social news</a> </td> <td><a href="/wiki/GNU_Affero_General_Public_License" title="GNU Affero General Public License">AGPLv3</a> </td> <td> </td> <td><a href="/wiki/Digg" title="Digg">Digg</a> </td></tr> <tr> <td><a href="/wiki/Mixx" title="Mixx">Mixx</a> </td> <td><a href="/wiki/Social_news" class="mw-redirect" title="Social news">Social news</a> </td> <td> </td> <td> </td> <td><a href="/wiki/Digg" title="Digg">Digg</a> </td></tr> <tr> <td><a href="/wiki/Friendica" title="Friendica">Friendica</a> </td> <td><a href="/wiki/Distributed_social_network" title="Distributed social network">Distributed social network</a> </td> <td><a href="/wiki/MIT_License" title="MIT License">MIT</a> </td> <td> </td> <td><a href="/wiki/Facebook" title="Facebook">Facebook</a> </td></tr> <tr> <td><a href="/wiki/Diaspora_(social_network)" title="Diaspora (social network)">Diaspora</a> </td> <td><a href="/wiki/Distributed_social_network" title="Distributed social network">Distributed social network</a> </td> <td><a href="/wiki/GNU_Affero_General_Public_License" title="GNU Affero General Public License">AGPL</a> </td> <td> </td> <td><a href="/wiki/Facebook" title="Facebook">Facebook</a> </td></tr> <tr> <td><a href="/wiki/BuddyPress" title="BuddyPress">BuddyPress</a> </td> <td><a href="/wiki/Distributed_social_network" title="Distributed social network">Distributed social network</a> </td> <td><a href="/wiki/GNU_General_Public_License" title="GNU General Public License">GPL</a> </td> <td><a href="/wiki/WordPress" title="WordPress">WordPress</a> </td> <td><a href="/wiki/Facebook" title="Facebook">Facebook</a> </td></tr> <tr> <td><a href="/wiki/Elgg_(software)" title="Elgg (software)">Elgg</a> </td> <td><a href="/wiki/Distributed_social_network" title="Distributed social network">Distributed social network</a> </td> <td><a href="/wiki/GNU_General_Public_License" title="GNU General Public License">GPLv2</a> / <a href="/wiki/MIT_License" title="MIT License">MIT</a> </td> <td> </td> <td><a href="/wiki/Facebook" title="Facebook">Facebook</a> </td></tr> <tr> <td><a href="/wiki/Scuttle_(software)" title="Scuttle (software)">Scuttle</a> </td> <td><a href="/wiki/Social_bookmarking" title="Social bookmarking">Social bookmarking</a> </td> <td> </td> <td> </td> <td><a href="/wiki/Delicious_(website)" title="Delicious (website)">Delicious</a> </td></tr> <tr> <td><a href="/wiki/Connotea" title="Connotea">Connotea</a> (discontinued) </td> <td><a href="/wiki/Social_bookmarking" title="Social bookmarking">Social bookmarking</a> </td> <td> </td> <td> </td> <td><a href="/wiki/Delicious_(website)" title="Delicious (website)">Delicious</a> </td></tr> <tr> <td><a href="/wiki/Gnolia" title="Gnolia">Ma.gnolia 2</a> (discontinued) </td> <td><a href="/wiki/Social_bookmarking" title="Social bookmarking">Social bookmarking</a> </td> <td> </td> <td> </td> <td><a href="/wiki/Delicious_(website)" title="Delicious (website)">Delicious</a> </td></tr> <tr> <td><a href="/wiki/Apertium" title="Apertium">Apertium</a> </td> <td><a href="/wiki/Translation" title="Translation">Translation</a> </td> <td><a href="/wiki/GNU_General_Public_License" title="GNU General Public License">GPLv2</a> </td> <td> </td> <td><a href="/wiki/Google_Translate" title="Google Translate">Google Translate</a> </td></tr> <tr> <td><a href="/wiki/EyeOS" title="EyeOS">EyeOS (version 2.5 and earlier)</a> </td> <td><a href="/wiki/Homepage" class="mw-redirect" title="Homepage">Homepage</a> </td> <td><a href="/wiki/GNU_Affero_General_Public_License" title="GNU Affero General Public License">AGPLv3</a> </td> <td> </td> <td><a href="/wiki/IGoogle" title="IGoogle">iGoogle</a> </td></tr> <tr> <td><a href="/wiki/OpenCroquet" class="mw-redirect" title="OpenCroquet">OpenCroquet</a> </td> <td><a href="/wiki/Virtual_world" title="Virtual world">Virtual world</a> </td> <td><a href="/wiki/MIT_License" title="MIT License">MIT</a> </td> <td> </td> <td><a href="/wiki/SecondLife" class="mw-redirect" title="SecondLife">SecondLife</a> </td></tr> <tr> <td><a href="/wiki/OpenSimulator" title="OpenSimulator">OpenSimulator</a> </td> <td><a href="/wiki/Virtual_world" title="Virtual world">Virtual world</a> </td> <td><a href="/wiki/BSD_License" class="mw-redirect" title="BSD License">BSD</a> </td> <td> </td> <td><a href="/wiki/SecondLife" class="mw-redirect" title="SecondLife">SecondLife</a> </td></tr> <tr> <td><a href="/wiki/Bitwarden" title="Bitwarden">bitwarden</a> </td> <td><a href="/wiki/Password_manager" title="Password manager">Password manager</a> </td> <td><a href="/wiki/GNU_General_Public_License" title="GNU General Public License">GPLv3</a>, <a href="/wiki/GNU_Affero_General_Public_License" title="GNU Affero General Public License">AGPLv3</a> </td> <td><a href="/wiki/Node.js" title="Node.js">node.js</a> </td> <td><a href="/wiki/Dashlane" title="Dashlane">Dashlane</a>, <a href="/wiki/LastPass" title="LastPass">LastPass</a> </td></tr> <tr> <td><a href="/wiki/Mattermost" title="Mattermost">Mattermost</a> </td> <td><a href="/wiki/Web_chat" class="mw-redirect" title="Web chat">Web chat</a> </td> <td><a href="/wiki/MIT_License" title="MIT License">MIT</a>, <a href="/wiki/GNU_Affero_General_Public_License" title="GNU Affero General Public License">AGPLv3</a>, <a href="/wiki/Apache_License_2.0" class="mw-redirect" title="Apache License 2.0">Apache License 2.0</a> </td> <td> </td> <td><a href="/wiki/Slack_(software)" title="Slack (software)">Slack</a> </td></tr> <tr> <td><a href="/wiki/Element_(software)" title="Element (software)">Element</a> </td> <td><a href="/wiki/Web_chat" class="mw-redirect" title="Web chat">Web chat</a> </td> <td><a href="/wiki/Apache_License_2.0" class="mw-redirect" title="Apache License 2.0">Apache License 2.0</a> </td> <td> </td> <td><a href="/wiki/Slack_(software)" title="Slack (software)">Slack</a> </td></tr> </tbody></table> <div class="mw-heading mw-heading2"><h2 id="See_also">See also</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=List_of_free_and_open-source_web_applications&action=edit&section=1" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1239009302">.mw-parser-output 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.cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:#085;margin-left:0.3em}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}@media screen{.mw-parser-output .cs1-format{font-size:95%}html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911f}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911f}}</style><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://codex.galleryproject.org/Gallery3:Requirements.html">"Gallery3:Requirements - Gallery Codex"</a>. <i>codex.galleryproject.org</i><span class="reference-accessdate">. Retrieved <span class="nowrap">2023-11-28</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=codex.galleryproject.org&rft.atitle=Gallery3%3ARequirements+-+Gallery+Codex&rft_id=http%3A%2F%2Fcodex.galleryproject.org%2FGallery3%3ARequirements.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3AList+of+free+and+open-source+web+applications" class="Z3988"></span></span> </li> <li id="cite_note-2"><span class="mw-cite-backlink"><b><a href="#cite_ref-2">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://github.com/Piwigo/Piwigo/blob/9af2ba648f4939e1a6a1774b178186290bb7a1b9/README.md?plain=1#L13">"Piwigo/README.md at 9af2ba648f4939e1a6a1774b178186290bb7a1b9 · Piwigo/Piwigo"</a>. <i>GitHub</i><span class="reference-accessdate">. Retrieved <span class="nowrap">2023-11-28</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=GitHub&rft.atitle=Piwigo%2FREADME.md+at+9af2ba648f4939e1a6a1774b178186290bb7a1b9+%C2%B7+Piwigo%2FPiwigo&rft_id=https%3A%2F%2Fgithub.com%2FPiwigo%2FPiwigo%2Fblob%2F9af2ba648f4939e1a6a1774b178186290bb7a1b9%2FREADME.md%3Fplain%3D1%23L13&rfr_id=info%3Asid%2Fen.wikipedia.org%3AList+of+free+and+open-source+web+applications" class="Z3988"></span></span> </li> <li id="cite_note-3"><span class="mw-cite-backlink"><b><a href="#cite_ref-3">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://docs.nextcloud.com/server/latest/admin_manual/installation/system_requirements.html#server">"System requirements — Nextcloud latest Administration Manual latest documentation"</a>. <i>docs.nextcloud.com</i><span class="reference-accessdate">. Retrieved <span class="nowrap">2023-11-28</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=docs.nextcloud.com&rft.atitle=System+requirements+%E2%80%94+Nextcloud+latest+Administration+Manual+latest+documentation&rft_id=https%3A%2F%2Fdocs.nextcloud.com%2Fserver%2Flatest%2Fadmin_manual%2Finstallation%2Fsystem_requirements.html%23server&rfr_id=info%3Asid%2Fen.wikipedia.org%3AList+of+free+and+open-source+web+applications" class="Z3988"></span></span> </li> <li id="cite_note-4"><span class="mw-cite-backlink"><b><a href="#cite_ref-4">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://wordpress.org/about/requirements/">"Hosting Requirements for WordPress"</a>. <i>WordPress.org</i><span class="reference-accessdate">. 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facilities</a></li> <li><a href="/wiki/Free_software" title="Free software">Free software</a></li> <li><a href="/wiki/List_of_free_software_project_directories" title="List of free software project directories">Free software project directories</a></li> <li><a href="/wiki/Gratis_versus_libre" title="Gratis versus libre">Gratis versus libre</a></li> <li><a href="/wiki/Long-term_support" title="Long-term support">Long-term support</a></li> <li><a href="/wiki/Open-source_software" title="Open-source software">Open-source software</a></li> <li><a href="/wiki/Open-source_software_development" title="Open-source software development">Open-source software development</a></li> <li><a href="/wiki/Outline_of_free_software" title="Outline of free software">Outline</a></li> <li><a href="/wiki/Timeline_of_free_and_open-source_software" title="Timeline of free and open-source software">Timeline</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a 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driver">Graphics</a></li> <li><a href="/wiki/Comparison_of_open-source_wireless_drivers" title="Comparison of open-source wireless drivers">Wireless</a></li></ul></li> <li><a href="/wiki/List_of_open-source_health_software" title="List of open-source health software">Health</a></li> <li><a href="/wiki/List_of_open-source_software_for_mathematics" title="List of open-source software for mathematics">Mathematics</a></li> <li><a href="/wiki/List_of_office_suites" title="List of office suites">Office suites</a></li> <li><a href="/wiki/Comparison_of_open-source_operating_systems" title="Comparison of open-source operating systems">Operating systems</a></li> <li><a href="/wiki/List_of_open-source_routing_platforms" title="List of open-source routing platforms">Routing</a></li> <li><a href="/wiki/List_of_free_television_software" title="List of free television software">Television</a></li> <li><a href="/wiki/List_of_open-source_video_games" title="List of open-source video games">Video games</a></li> <li><a class="mw-selflink selflink">Web applications</a> <ul><li><a href="/wiki/Comparison_of_shopping_cart_software" title="Comparison of shopping cart software">E-commerce</a></li></ul></li> <li><a href="/wiki/List_of_free_and_open-source_Android_applications" title="List of free and open-source Android applications">Android apps</a></li> <li><a href="/wiki/List_of_free_and_open-source_iOS_applications" title="List of free and open-source iOS applications">iOS apps</a></li> <li><a href="/wiki/List_of_commercial_open-source_applications_and_services" title="List of commercial open-source applications and services">Commercial</a></li> <li><a href="/wiki/List_of_formerly_proprietary_software" title="List of formerly proprietary software">Formerly proprietary</a></li> <li><a href="/wiki/List_of_formerly_free_and_open-source_software" class="mw-redirect" title="List of formerly free and open-source software">Formerly open-source</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Community_of_practice" title="Community of practice">Community</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Free_software_movement" title="Free software movement">Free software movement</a></li> <li><a href="/wiki/History_of_free_and_open-source_software" title="History of free and open-source software">History</a></li> <li><a href="/wiki/Open-source-software_movement" title="Open-source-software movement">Open-source-software movement</a></li> <li><a href="/wiki/List_of_free-software_events" title="List of free-software events">Events</a></li> <li><a href="/wiki/Open-source_software_advocacy" title="Open-source software advocacy">Advocacy</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/List_of_free_and_open-source_software_organizations" title="List of free and open-source software organizations">Organisations</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Free_Software_Movement_of_India" title="Free Software Movement of India">Free Software Movement of India</a></li> <li><a href="/wiki/Free_Software_Foundation" title="Free Software Foundation">Free Software Foundation</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Free-software_license" title="Free-software license">Licenses</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Academic_Free_License" title="Academic Free License">AFL</a></li> <li><a href="/wiki/Apache_License" title="Apache License">Apache</a></li> <li><a href="/wiki/Apple_Public_Source_License" title="Apple Public Source License">APSL</a></li> <li><a href="/wiki/Artistic_License" title="Artistic License">Artistic</a></li> <li><a href="/wiki/Beerware" title="Beerware">Beerware</a></li> <li><a href="/wiki/BSD_licenses" title="BSD licenses">BSD</a></li> <li><a href="/wiki/Creative_Commons_license" title="Creative Commons license">Creative Commons</a></li> <li><a href="/wiki/Common_Development_and_Distribution_License" title="Common Development and Distribution License">CDDL</a></li> <li><a href="/wiki/Eclipse_Public_License" title="Eclipse Public License">EPL</a></li> <li><a href="/wiki/Free_Software_Foundation" title="Free Software Foundation">Free Software Foundation</a> <ul><li><a href="/wiki/GNU_General_Public_License" title="GNU General Public License">GNU GPL</a></li> <li><a href="/wiki/GNU_Affero_General_Public_License" title="GNU Affero General Public License">GNU AGPL</a></li> <li><a href="/wiki/GNU_Lesser_General_Public_License" title="GNU Lesser General Public License">GNU LGPL</a></li></ul></li> <li><a href="/wiki/ISC_license" title="ISC license">ISC</a></li> <li><a href="/wiki/MIT_License" title="MIT License">MIT</a></li> <li><a href="/wiki/Mozilla_Public_License" title="Mozilla Public License">MPL</a></li> <li><a href="/wiki/Python_License" title="Python License">Python</a></li> <li><a href="/wiki/Python_Software_Foundation_License" title="Python Software Foundation License">Python Software Foundation License</a></li> <li><a href="/wiki/Shared_Source_Initiative" title="Shared Source Initiative">Shared Source Initiative</a></li> <li><a href="/wiki/Sleepycat_License" class="mw-redirect" title="Sleepycat License">Sleepycat</a></li> <li><a href="/wiki/Unlicense" title="Unlicense">Unlicense</a></li> <li><a href="/wiki/WTFPL" title="WTFPL">WTFPL</a></li> <li><a href="/wiki/Zlib_License" title="Zlib License">zlib</a></li></ul> </div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Types_and_standards" scope="row" class="navbox-group" style="width:1%">Types and<br /> standards</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Comparison_of_free_and_open-source_software_licenses" title="Comparison of free and open-source software licenses">Comparison of licenses</a></li> <li><a href="/wiki/Contributor_License_Agreement" title="Contributor License Agreement">Contributor License Agreement</a></li> <li><a href="/wiki/Copyleft" title="Copyleft">Copyleft</a></li> <li><a href="/wiki/Debian_Free_Software_Guidelines" class="mw-redirect" title="Debian Free Software Guidelines">Debian Free Software Guidelines</a></li> <li><a href="/wiki/Definition_of_Free_Cultural_Works" title="Definition of Free Cultural Works">Definition of Free Cultural Works</a></li> <li><a href="/wiki/Free_license" title="Free license">Free license</a></li> <li><a href="/wiki/The_Free_Software_Definition" title="The Free Software Definition">The Free Software Definition</a></li> <li><a href="/wiki/The_Open_Source_Definition" title="The Open Source Definition">The Open Source Definition</a></li> <li><a href="/wiki/Open-source_license" title="Open-source license">Open-source license</a></li> <li><a href="/wiki/Permissive_software_license" title="Permissive software license">Permissive software license</a></li> <li><a href="/wiki/Public_domain" title="Public domain">Public domain</a></li></ul> </div></td></tr></tbody></table><div> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Challenges</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Digital_rights_management" title="Digital rights management">Digital rights management</a></li> <li><a href="/wiki/License_proliferation" title="License proliferation">License proliferation</a></li> <li><a href="/wiki/Mozilla_software_rebranded_by_Debian" class="mw-redirect" title="Mozilla software rebranded by Debian">Mozilla software rebranding</a></li> <li><a href="/wiki/Proprietary_device_driver" class="mw-redirect" title="Proprietary device driver">Proprietary device drivers</a></li> <li><a href="/wiki/Proprietary_firmware" title="Proprietary firmware">Proprietary firmware</a></li> <li><a href="/wiki/Proprietary_software" title="Proprietary software">Proprietary software</a></li> <li><a href="/wiki/SCO%E2%80%93Linux_disputes" title="SCO–Linux disputes">SCO/Linux controversies</a></li> <li><a href="/wiki/Software_patents_and_free_software" title="Software patents and free software">Software patents</a></li> <li><a href="/wiki/Open-source_software_security" title="Open-source software security">Software security</a></li> <li><a href="/wiki/Tivoization" title="Tivoization">Tivoization</a></li> <li><a href="/wiki/Trusted_Computing" title="Trusted Computing">Trusted Computing</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Related <br />topics</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Fork_(software_development)" title="Fork (software development)">Forking</a></li> <li><i><a href="/wiki/GNU_Manifesto" title="GNU Manifesto">GNU Manifesto</a></i></li> <li><a href="/wiki/Microsoft_Open_Specification_Promise" title="Microsoft Open Specification Promise">Microsoft Open Specification Promise</a></li> <li><a href="/wiki/Open-core_model" title="Open-core model">Open-core model</a></li> <li><a href="/wiki/Open-source_hardware" title="Open-source hardware">Open-source hardware</a></li> <li><a href="/wiki/Shared_Source_Initiative" title="Shared Source Initiative">Shared Source Initiative</a></li> <li><a href="/wiki/Source-available_software" title="Source-available software">Source-available software</a></li> <li><i><a href="/wiki/The_Cathedral_and_the_Bazaar" title="The Cathedral and the Bazaar">The Cathedral and the Bazaar</a></i></li> <li><i><a href="/wiki/Revolution_OS" title="Revolution OS">Revolution OS</a></i></li></ul> </div></td></tr><tr><td class="navbox-abovebelow" colspan="2" style="font-weight:bold"><div> <ul><li><span class="noviewer" typeof="mw:File"><a href="/wiki/File:Symbol_portal_class.svg" class="mw-file-description" title="Portal"><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/e/e2/Symbol_portal_class.svg/16px-Symbol_portal_class.svg.png" decoding="async" width="16" height="16" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/e/e2/Symbol_portal_class.svg/23px-Symbol_portal_class.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/e/e2/Symbol_portal_class.svg/31px-Symbol_portal_class.svg.png 2x" data-file-width="180" data-file-height="185" /></a></span> <a href="/wiki/Portal:Free_and_open-source_software" title="Portal:Free and open-source software">Portal</a></li> <li><span class="noviewer" typeof="mw:File"><span title="Category"><img 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