<!DOCTYPE html><html><head><meta property="mw:TimeUuid" content="c1b0b2a0-cb48-11ed-b523-49f09d566006"/><meta charset="utf-8"/><meta property="mw:pageId" content="1055823"/><meta property="mw:pageNamespace" content="0"/><link rel="dc:replaces" resource="mwr:revision/1057668474"/><meta property="mw:revisionSHA1" content="54d4025c599b574fd88b50f17233e62afa9b1452"/><meta property="dc:modified" content="2023-03-25T20:08:05.000Z"/><meta property="mw:htmlVersion" content="2.7.0"/><meta property="mw:html:version" content="2.7.0"/><title>Tlen.pl - WikiMili, The Best Wikipedia Reader</title><meta property="mw:moduleStyles" content="ext.cite.style|ext.cite.styles"/><meta href="/w/load.php?lang=en&amp;modules=ext.cite.style%7Cext.cite.styles%7Cmediawiki.skinning.content.parsoid%7Cmediawiki.skinning.interface%7Csite.styles&amp;only=styles&amp;skin=vector"/><meta http-equiv="content-language" content="en"/><meta http-equiv="vary" content="Accept"/><link rel="canonical" href="https://wikimili.com/en/Tlen.pl"/><link rel="stylesheet" href="/a.css"/><meta name="YahooSeeker" content="INDEX, FOLLOW"/><meta name="msnbot" content="INDEX, FOLLOW"/><meta name="googlebot" content="INDEX, FOLLOW"/><meta name="robots" content="index, follow"/><meta name="viewport" content="width=device-width"><meta property="og:type" content="article"/><meta property="og:site_name" content="WikiMili.com"/><meta name="twitter:card" content="summary_large_image"/><meta name="twitter:domain" content="WikiMili.com"/><meta name="twitter:site" content="@wikimili"/><meta name="description" content="Tlen.pl was an adware licensed Polish instant messaging service. It was fully compatible with the main Polish Gadu-Gadu instant messenger. It was launched in 2001 and discontinued in May 2016."/><meta property="og:description" content="Tlen.pl was an adware licensed Polish instant messaging service. It was fully compatible with the main Polish Gadu-Gadu instant messenger. It was launched in 2001 and discontinued in May 2016."/><meta name="twitter:description" content="Tlen.pl was an adware licensed Polish instant messaging service. It was fully compatible with the main Polish Gadu-Gadu instant messenger. It was launched in 2001 and discontinued in May 2016."/><meta property="og:title" content="Tlen.pl - WikiMili, The Best Wikipedia Reader"/><meta name="twitter:title" content="Tlen.pl - WikiMili, The Best Wikipedia Reader"/><meta property="og:url" content="https://wikimili.com/en/Tlen.pl"/><meta name="twitter:url" content="https://wikimili.com/en/Tlen.pl"/><script type="text/javascript" src="/a.js"></script></head><body id="mwAA" lang="en" class="mw-content-ltr sitedir-ltr ltr mw-body-content parsoid-body mediawiki mw-parser-output" dir="ltr"><div id="header"> <a id="miliLogo" href="https://wikimili.com">WikiMili</a> </div><h1 id="firstHeading" class="firstHeading" lang="en">Tlen.pl</h1><span class="updated-holder">Last updated <time class="updated" datetime="2023-03-26">March 26, 2023</time></span><section data-mw-section-id="0" id="mwAQ"><style data-mw-deduplicate="TemplateStyles:r1033289096" typeof="mw:Extension/templatestyles mw:Transclusion" about="#mwt1" data-mw="{&quot;parts&quot;:[{&quot;template&quot;:{&quot;target&quot;:{&quot;wt&quot;:&quot;redirect&quot;,&quot;href&quot;:&quot;./Template:Redirect&quot},&quot;params&quot;:{&quot;1&quot;:{&quot;wt&quot;:&quot;Tlen&quot},&quot;text&quot;:{&quot;wt&quot;:&quot;For the village,see [[Tle&#324;]]. [[:wikt:tlen|Tlen]] is also the Polish word for oxygen&quot}},&quot;i&quot;:0}}]}" id="mwAg">.mw-parser-output .hatnote{font-style:italic}.mw-parser-output div.hatnote{padding-left:1.6em;margin-bottom:0.5em}.mw-parser-output .hatnote i{font-style:normal}.mw-parser-output .hatnote+link+.hatnote{margin-top:-0.5em}</style><div role="note" class="hatnote navigation-not-searchable" about="#mwt1" id="mwAw">"Tlen" redirects here. For the village, see <a rel="mw:WikiLink" href="./Tle&#324;" title="Tle&#324;">Tle&#324;</a>. <a rel="mw:WikiLink/Interwiki" href="https://en.wiktionary.org/wiki/tlen" title="wikt:tlen" class="extiw">Tlen</a> is also the Polish word for oxygen.</div><style data-mw-deduplicate="TemplateStyles:r1097763485" typeof="mw:Extension/templatestyles mw:Transclusion" about="#mwt4" data-mw="{&quot;parts&quot;:[{&quot;template&quot;:{&quot;target&quot;:{&quot;wt&quot;:&quot;one source&quot;,&quot;href&quot;:&quot;./Template:One_source&quot},&quot;params&quot;:{&quot;date&quot;:{&quot;wt&quot;:&quot;May 2016&quot}},&quot;i&quot;:0}}]}" id="mwBA">.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}html.client-js body.skin-minerva .mw-parser-output .mbox-text-span{margin-left:23px!important}@media(min-width:720px){.mw-parser-output .ambox{margin:0 10%}}</style><table class="box-One_source plainlinks metadata ambox ambox-content ambox-one_source" role="presentation" about="#mwt4"><tbody><tr><td class="mbox-image"><div class="mbox-image-div"><span typeof="mw:File"> <a onclick="showImg(this)" id="Question_book-new.svg" class="mw-file-description"><img resource="./File:Question_book-new.svg" src="//upload.wikimedia.org/wikipedia/en/thumb/9/99/Question_book-new.svg/50px-Question_book-new.svg.png" decoding="async" data-file-width="512" data-file-height="399" data-file-type="drawing" height="39" width="50" 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" alt="Question book-new.svg"/></a> </span></div></td><td class="mbox-text"><div class="mbox-text-span">This article <b>relies largely or entirely on a <a rel="mw:WikiLink" target="_blank" href="//en.wikipedia.org/wiki/Wikipedia:Articles_with_a_single_source" title="Wikipedia:Articles with a single source">single source</a> </b>.<span class="hide-when-compact"> Relevant discussion may be found on the <a rel="mw:WikiLink" class="new" data-href="//en.wikipedia.org/wiki/Talk:Tlen.pl##" title="Talk:Tlen.pl">talk page</a>. Please help <a rel="mw:ExtLink" href="//en.wikipedia.org/w/index.php?title=Tlen.pl&amp;action=edit" class="external text">improve this article</a> by <a rel="mw:WikiLink" class="new" data-href="//en.wikipedia.org/wiki/Help:Referencing_for_beginners" title="Help:Referencing for beginners">introducing  citations to additional sources</a>.<br/><small><span class="plainlinks"><i>Find sources:</i><span typeof="mw:Entity">&#160;</span> <a rel="mw:ExtLink nofollow" href="//www.google.com/search?as_eq=wikipedia&amp;q=%22Tlen.pl%22" class="external text">"Tlen.pl"</a> <span typeof="mw:Entity">&#160;</span>&#8211;<span typeof="mw:Entity">&#160;</span> <a rel="mw:ExtLink nofollow" href="//www.google.com/search?tbm=nws&amp;q=%22Tlen.pl%22+-wikipedia&amp;tbs=ar:1" class="external text">news</a>&#160;<b>&#183;</b> <a rel="mw:ExtLink nofollow" href="//www.google.com/search?&amp;q=%22Tlen.pl%22&amp;tbs=bkt:s&amp;tbm=bks" class="external text">newspapers</a>&#160;<b>&#183;</b> <a rel="mw:ExtLink nofollow" href="//www.google.com/search?tbs=bks:1&amp;q=%22Tlen.pl%22+-wikipedia" class="external text">books</a>&#160;<b>&#183;</b> <a rel="mw:ExtLink nofollow" href="//scholar.google.com/scholar?q=%22Tlen.pl%22" class="external text">scholar</a>&#160;<b>&#183;</b> <a rel="mw:ExtLink nofollow" href="https://www.jstor.org/action/doBasicSearch?Query=%22Tlen.pl%22&amp;acc=on&amp;wc=on" class="external text">JSTOR</a> </span></small></span><span class="date-container"><i>(<span class="date">May 2016</span>)</i></span></div></td></tr></tbody></table><link rel="mw:PageProp/Category" target="_blank" href="//en.wikipedia.org/wiki/Category:Articles_needing_additional_references_from_May_2016" about="#mwt4"/><link rel="mw:PageProp/Category" target="_blank" href="//en.wikipedia.org/wiki/Category:All_articles_needing_additional_references" about="#mwt4" id="mwBQ"/><style data-mw-deduplicate="TemplateStyles:r1066479718" typeof="mw:Extension/templatestyles mw:Transclusion" about="#mwt7" data-mw="{&quot;parts&quot;:[{&quot;template&quot;:{&quot;target&quot;:{&quot;wt&quot;:&quot;Infobox software\n&quot;,&quot;href&quot;:&quot;./Template:Infobox_software&quot},&quot;params&quot;:{&quot;name&quot;:{&quot;wt&quot;:&quot;Tlen.pl&quot},&quot;title&quot;:{&quot;wt&quot;:&quot;&quot},&quot;logo&quot;:{&quot;wt&quot;:&quot;&quot},&quot;screenshot&quot;:{&quot;wt&quot;:&quot;&quot},&quot;caption&quot;:{&quot;wt&quot;:&quot;Tlen.pl&quot},&quot;collapsible&quot;:{&quot;wt&quot;:&quot;&quot},&quot;author&quot;:{&quot;wt&quot;:&quot;&quot},&quot;developer&quot;:{&quot;wt&quot;:&quot;Grupa o2 Sp. z o.o.&quot},&quot;released&quot;:{&quot;wt&quot;:&quot;{{start date|2001|10}}&quot},&quot;discontinued&quot;:{&quot;wt&quot;:&quot;&quot},&quot;latest release version&quot;:{&quot;wt&quot;:&quot;6.00.3.77&quot},&quot;latest release date&quot;:{&quot;wt&quot;:&quot;{{Start date and age|2009|01|16}}([[Windows]])&quot},&quot;latest preview version&quot;:{&quot;wt&quot;:&quot;7.0.1.72&quot},&quot;latest preview date&quot;:{&quot;wt&quot;:&quot;{{Start date and age|2011|02|10}}([[Windows]],[[Linux]],[[Mac OS X]])&quot},&quot;frequently updated&quot;:{&quot;wt&quot;:&quot;&quot},&quot;programming language&quot;:{&quot;wt&quot;:&quot;&quot},&quot;operating system&quot;:{&quot;wt&quot;:&quot;[[Microsoft Windows]],[[Linux]],[[Mac OS X]]&quot},&quot;platform&quot;:{&quot;wt&quot;:&quot;&quot},&quot;size&quot;:{&quot;wt&quot;:&quot;&quot},&quot;language&quot;:{&quot;wt&quot;:&quot;Polish&quot},&quot;status&quot;:{&quot;wt&quot;:&quot;&quot},&quot;genre&quot;:{&quot;wt&quot;:&quot;Instant messaging client&quot},&quot;license&quot;:{&quot;wt&quot;:&quot;[[Freeware]]/[[Adware]]&quot},&quot;website&quot;:{&quot;wt&quot;:&quot;{{URL|www.tlen.pl}}&quot}},&quot;i&quot;:0}}]}" id="mwBg">.mw-parser-output .infobox-subbox{padding:0;border:none;margin:-3px;width:auto;min-width:100%;font-size:100%;clear:none;float:none;background-color:transparent}.mw-parser-output .infobox-3cols-child{margin:auto}.mw-parser-output .infobox .navbar{font-size:100%}body.skin-minerva .mw-parser-output .infobox-header,body.skin-minerva .mw-parser-output .infobox-subheader,body.skin-minerva .mw-parser-output .infobox-above,body.skin-minerva .mw-parser-output .infobox-title,body.skin-minerva .mw-parser-output .infobox-image,body.skin-minerva .mw-parser-output .infobox-full-data,body.skin-minerva .mw-parser-output .infobox-below{text-align:center}</style><table class="infobox vevent" about="#mwt7" id="mwBw"><caption class="infobox-title summary">Tlen.pl</caption><tbody><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"> <a rel="mw:WikiLink" href="./Programmer" title="Programmer">Developer(s)</a> </th><td class="infobox-data">Grupa o2 Sp. z o.o.</td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;">Initial release</th><td class="infobox-data">October<span typeof="mw:Entity">&#160;</span>2001<span style="display:none"><span typeof="mw:Entity">&#160;</span>(<span class="bday dtstart published updated">2001-10</span>)</span></td></tr><tr style="display: none;"><td colspan="2" class="infobox-full-data"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1066479718" about="#mwt11" typeof="mw:Extension/templatestyles" data-mw="{&quot;name&quot;:&quot;templatestyles&quot;,&quot;attrs&quot;:{&quot;src&quot;:&quot;Module:Infobox/styles.css&quot;},&quot;body&quot;:{&quot;extsrc&quot;:&quot;&quot;}}"/></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"> <a rel="mw:WikiLink" href="./Software_release_life_cycle" title="Software release life cycle">Stable release</a> </th><td class="infobox-data"><div style="margin:0px;">6.00.3.77    / January<span typeof="mw:Entity">&#160;</span>16, 2009<span class="noprint"><span typeof="mw:Entity">;</span><span typeof="mw:Entity"></span>14 years ago</span><span style="display:none"><span typeof="mw:Entity">&#160;</span>(<span class="bday dtstart published updated">2009-01-16</span>)</span> (<a rel="mw:WikiLink" title="Windows" class="mw-redirect" onclick="openRedirectLink(&quot;Windows&quot;)">Windows</a>)</div></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"> <a rel="mw:WikiLink" href="./Software_release_life_cycle#Beta" title="Software release life cycle">Preview release</a> </th><td class="infobox-data"><div style="margin:0px;">7.0.1.72    / February<span typeof="mw:Entity">&#160;</span>10, 2011<span class="noprint"><span typeof="mw:Entity">;</span><span typeof="mw:Entity"></span>12 years ago</span><span style="display:none"><span typeof="mw:Entity">&#160;</span>(<span class="bday dtstart published updated">2011-02-10</span>)</span> (<a rel="mw:WikiLink" title="Windows" class="mw-redirect" onclick="openRedirectLink(&quot;Windows&quot;)">Windows</a>, <a rel="mw:WikiLink" href="./Linux" title="Linux">Linux</a>, <a rel="mw:WikiLink" title="Mac OS X" class="mw-redirect" onclick="openRedirectLink(&quot;Mac_OS_X&quot;)">Mac OS X</a>)</div></td></tr><tr style="display:none"><td colspan="2"></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"> <a rel="mw:WikiLink" href="./Operating_system" title="Operating system">Operating system</a> </th><td class="infobox-data"> <a rel="mw:WikiLink" href="./Microsoft_Windows" title="Microsoft Windows">Microsoft Windows</a>, <a rel="mw:WikiLink" href="./Linux" title="Linux">Linux</a>, <a rel="mw:WikiLink" title="Mac OS X" class="mw-redirect" onclick="openRedirectLink(&quot;Mac_OS_X&quot;)">Mac OS X</a> </td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;">Available in</th><td class="infobox-data">Polish</td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"> <a rel="mw:WikiLink" href="./Software_categories#Categorization_approaches" title="Software categories">Type</a> </th><td class="infobox-data">Instant messaging client</td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"> <a rel="mw:WikiLink" href="./Software_license" title="Software license">License</a> </th><td class="infobox-data"> <a rel="mw:WikiLink" href="./Freeware" title="Freeware">Freeware</a>/<a rel="mw:WikiLink" href="./Adware" title="Adware">Adware</a> </td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;">Website</th><td class="infobox-data"><span class="url"> <a rel="mw:ExtLink nofollow" href="http://www.tlen.pl" class="external text">www<wbr/>.tlen<wbr/>.pl</a> </span></td></tr></tbody></table><p id="mwCA"><b id="mwCQ">Tlen.pl</b> was an <a rel="mw:WikiLink" href="./Adware" title="Adware" id="mwCg">adware</a> licensed <a rel="mw:WikiLink" href="./Poland" title="Poland" id="mwCw">Polish</a> <a rel="mw:WikiLink" href="./Instant_messaging" title="Instant messaging" id="mwDA">instant messaging</a> service. It was fully compatible with the main Polish <a rel="mw:WikiLink" href="./Gadu-Gadu" title="Gadu-Gadu" id="mwDQ">Gadu-Gadu</a> instant messenger. It was launched in 2001 and discontinued in May 2016.<sup about="#mwt16" class="mw-ref reference" id="cite_ref-1"   data-mw="{&quot;name&quot;:&quot;ref&quot;,&quot;attrs&quot;:{},&quot;body&quot;:{&quot;id&quot;:&quot;mw-reference-text-cite_note-1&quot;}}"> <a href="./Tlen.pl#cite_note-1" style="counter-reset: mw-Ref 1;" id="mwDg"><span class="mw-reflink-text" id="mwDw">[1]</span></a> </sup></p><h2 id="listHeader">Contents</h2><ul id="listClass"><li> <a href="#See_also">See also</a> </li><li> <a href="#References">References</a> </li><li> <a href="#External_links">External links</a> </li></ul><p id="mwEA">The communication protocol is based on <a rel="mw:WikiLink" href="./Open-source_software" title="Open-source software" id="mwEQ">open-source</a> jabberd code, but it was modified significantly, making it incompatible with generic <a rel="mw:WikiLink" title="Extensible Messaging and Presence Protocol" class="mw-redirect" id="mwEg" onclick="openRedirectLink(&quot;Extensible_Messaging_and_Presence_Protocol&quot;)">XMPP</a> clients and servers. Among other features, Tlen.pl allows for <a rel="mw:WikiLink" title="Voice chat" class="mw-redirect" id="mwEw" onclick="openRedirectLink(&quot;Voice_chat&quot;)">voice chats</a>, <a rel="mw:WikiLink" title="Short message service" class="mw-redirect" id="mwFA" onclick="openRedirectLink(&quot;Short_message_service&quot;)">SMS</a> sending and <a rel="mw:WikiLink" title="Video teleconference" class="mw-redirect" id="mwFQ" onclick="openRedirectLink(&quot;Video_teleconference&quot;)">video conferences</a>. The versions later than 4.0 allow for creation and usage of <a rel="mw:WikiLink" href="./Plug-in_(computing)" title="Plug-in (computing)" id="mwFg">plugins</a>. Since then more than 130 plugins have been created by the community. By April 2008 there were more than 1 500 000 registered users and 780 000 real users of Tlen.pl.<sup about="#mwt19" class="mw-ref reference" id="cite_ref-2"   data-mw="{&quot;name&quot;:&quot;ref&quot;,&quot;attrs&quot;:{},&quot;body&quot;:{&quot;id&quot;:&quot;mw-reference-text-cite_note-2&quot;}}"> <a href="./Tlen.pl#cite_note-2" style="counter-reset: mw-Ref 2;" id="mwFw"><span class="mw-reflink-text" id="mwGA">[2]</span></a> </sup></p><p id="mwGQ">Tlen is also integrated with the o2.pl mail system, which allows users to use mail in three domains: o2.pl; go2.pl and Tlen.pl. It is possible to easily access the mail system from the application. Tlen.pl automatically checks the user's account and if there is any new mail, it displays a notification on their screen.</p><p id="mwGg">It is also possible to connect to Tlen.pl from the Tlen.pl homepage with a browser.</p><p id="mwGw">Since version 6.0.1.7, Tlen has included the Tlenofon <a rel="mw:WikiLink" href="./Plug-in_(computing)" title="Plug-in (computing)" id="mwHA">plugin</a>, which enables <a rel="mw:WikiLink" title="VoIP" class="mw-redirect" id="mwHQ" onclick="openRedirectLink(&quot;VoIP&quot;)">VoIP</a> functionality for the client. Tlenofon is similar to the <a rel="mw:WikiLink" href="./Skype" title="Skype" id="mwHg">Skype</a> service and offers low-priced calls to <a rel="mw:WikiLink" href="./Poland" title="Poland" id="mwHw">Poland</a> and other countries.</p><p id="mwIA">In the second half of 2009, Tlen 7 Beta was published. There were no longer any advertisements. The popularity of the service has been declining, however. The software has not been updated since 2011, and the server has been shut down on 10 May 2016.<sup about="#mwt24" class="mw-ref reference" id="cite_ref-3"   data-mw="{&quot;name&quot;:&quot;ref&quot;,&quot;attrs&quot;:{},&quot;body&quot;:{&quot;id&quot;:&quot;mw-reference-text-cite_note-3&quot;}}"> <a href="./Tlen.pl#cite_note-3" style="counter-reset: mw-Ref 3;" id="mwIQ"><span class="mw-reflink-text" id="mwIg">[3]</span></a> </sup></p></section><section data-mw-section-id="1" id="mwIw"><h2 id="See_also">See also</h2><ul id="mwJA"><li id="mwJQ"> <a rel="mw:WikiLink" title="Comparison of instant messaging clients" class="mw-redirect" id="mwJg" onclick="openRedirectLink(&quot;Comparison_of_instant_messaging_clients&quot;)">Comparison of instant messaging clients</a> </li></ul></section><section data-mw-section-id="2" id="mwJw"><h2 id="relatedWikiArticles">Related Research Articles</h2><div class="wikiCardWrapper"><div class="wikiMiliCard wikiMiliParaCard" onclick="location.href=&quot;./ICQ&quot;"><p><b>ICQ New</b> is a cross-platform instant messaging (IM) and VoIP client. The name ICQ derives from the English phrase "I Seek You". Originally developed by the Israeli company Mirabilis in 1996, the client was bought by AOL in 1998, and then by Mail.Ru Group in 2010.</p></div><div class="wikiMiliCard " onclick="location.href=&quot;./Instant_messaging&quot;"><img src="https://upload.wikimedia.org/wikipedia/commons/thumb/3/3c/Gossip-chat.png/320px-Gossip-chat.png" alt="&lt;span class=&quot;mw-page-title-main&quot;&gt;Instant messaging&lt;/span&gt; Form of communication over the Internet"/><p><b>Instant messaging</b> (<b>IM</b>) technology is a type of online chat allowing real-time text transmission over the Internet or another computer network. Messages are typically transmitted between two or more parties, when each user inputs text and triggers a transmission to the recipient(s), who are all connected on a common network. It differs from email in that conversations over instant messaging happen in real-time. Most modern IM applications use push technology and also add other features such as emojis, file transfer, chatbots, voice over IP, or video chat capabilities.</p></div><div class="wikiMiliCard " onclick="location.href=&quot;./ChatZilla&quot;"><img src="https://upload.wikimedia.org/wikipedia/commons/thumb/7/73/Chatzilla.png/320px-Chatzilla.png" alt="&lt;span class=&quot;mw-page-title-main&quot;&gt;ChatZilla&lt;/span&gt; IRC client"/><p><b>ChatZilla</b> is an IRC client that is part of SeaMonkey. It was previously an extension for Mozilla-based browsers such as Firefox, introduced in 2000. It is cross-platform open source software which has been noted for its consistent appearance across platforms, CSS appearance customization and scripting.</p></div><div class="wikiMiliCard " onclick="location.href=&quot;./Pidgin_%28software%29&quot;"><img src="https://upload.wikimedia.org/wikipedia/commons/0/09/Pidgin_2.10.9.png" alt="&lt;span class=&quot;mw-page-title-main&quot;&gt;Pidgin (software)&lt;/span&gt; Open-source multi-platform instant messaging client"/><p><b>Pidgin</b> is a free and open-source multi-platform instant messaging client, based on a library named <b>libpurple</b> that has support for many instant messaging protocols, allowing the user to simultaneously log in to various services from a single application, with a single interface for both popular and obsolete protocols, thus avoiding the hassle of having to deal with a new software for each device and protocol.</p></div><div class="wikiMiliCard " onclick="location.href=&quot;./XMPP&quot;"><img src="https://upload.wikimedia.org/wikipedia/commons/thumb/9/95/XMPP_logo.svg/320px-XMPP_logo.svg.png" alt="&lt;span class=&quot;mw-page-title-main&quot;&gt;XMPP&lt;/span&gt; Communications protocol for message-oriented middleware"/><p><b>Extensible Messaging and Presence Protocol</b> is an open communication protocol designed for instant messaging (IM), presence information, and contact list maintenance. Based on XML, it enables the near-real-time exchange of structured data between two or more network entities. Designed to be extensible, the protocol offers a multitude of applications beyond traditional IM in the broader realm of message-oriented middleware, including signalling for VoIP, video, file transfer, gaming and other uses.</p></div><div class="wikiMiliCard wikiMiliParaCard" onclick="location.href=&quot;./Eudora_%28email_client%29&quot;"><p><b>Eudora</b> is an email client that was used on the classic Mac OS, Mac OS X, and Microsoft Windows operating systems. It also supported several palmtop computing platforms, including Newton and the Palm OS. In 2018, after being years out of print, the software was open-sourced by the Computer History Museum.</p></div><div class="wikiMiliCard " onclick="location.href=&quot;./Kopete&quot;"><img src="https://upload.wikimedia.org/wikipedia/commons/thumb/7/78/Breezeicons-apps-48-kopete.svg/320px-Breezeicons-apps-48-kopete.svg.png" alt="&lt;span class=&quot;mw-page-title-main&quot;&gt;Kopete&lt;/span&gt; Free multiprotocol messenger"/><p><b>Kopete</b> is a multi-protocol, free software instant messaging client released as part of the KDE Software Compilation. Although it can run in numerous environments, it was designed for and integrates with the KDE Plasma Workspaces. Kopete was started because ICQ blocked Licq from their network in 2001. According to the original author, Duncan Mac-Vicar Prett, the name comes from the Chilean Spanish word <i>copete</i>, meaning "a drink with your friends". Kopete has been nominated for multiple awards. The designated successor is KDE Telepathy from the KDE RTCC Initiative.</p></div><div class="wikiMiliCard " onclick="location.href=&quot;./Miranda_NG&quot;"><img src="https://upload.wikimedia.org/wikipedia/commons/thumb/3/3a/Miranda_ng_logo_%28with_shadow%29.svg/320px-Miranda_ng_logo_%28with_shadow%29.svg.png" alt="&lt;span class=&quot;mw-page-title-main&quot;&gt;Miranda NG&lt;/span&gt; Free instant messenger for Microsoft Windows"/><p><b>Miranda NG</b> is an open-source multiprotocol instant messaging application, designed for Microsoft Windows. Miranda NG is free software distributed under the GNU GPL-2.0-or-later.</p></div><div class="wikiMiliCard " onclick="location.href=&quot;./Adium&quot;"><img src="https://upload.wikimedia.org/wikipedia/commons/thumb/9/91/Adium.png/320px-Adium.png" alt="&lt;span class=&quot;mw-page-title-main&quot;&gt;Adium&lt;/span&gt;"/><p><b>Adium</b> is a free and open source instant messaging client for macOS that supports multiple IM networks, including Google Talk and XMPP. In the past, it has also supported AIM, ICQ, Windows Live Messenger and Yahoo! Messenger. Adium is written using macOS's Cocoa API, and it is released under the GNU GPL-2.0-or-later and many other licenses for components that are distributed with Adium.</p></div><div class="wikiMiliCard wikiMiliParaCard" onclick="location.href=&quot;./TOC_protocol&quot;"><p>The <b>TOC protocol</b>, or <b>Talk to OSCAR protocol</b>, was a protocol used by some third-party AOL Instant Messenger clients and several clients that AOL produced itself. Sometime near August 19, 2005, AOL discontinued support for the protocol and no longer uses it in any of the instant messaging clients it actively maintains, such as its Windows and Mac clients for the AOL Instant Messenger and ICQ systems. However, it once did produce several of its own TOC clients, including TiK and TAC which are written in Tcl/Tk, TNT which is written in Emacs Lisp, all of which are open source, and a Java client originally called TIC which later became the Quick Buddy web applet. AOL also provided the TOC protocol specification openly to developers in the hopes that they will use it instead of the proprietary OSCAR protocol they use themselves. In July 2012, AOL turned off the TOC2 servers and it is no longer possible to connect to AIM using this protocol.</p></div><div class="wikiMiliCard " onclick="location.href=&quot;./Gadu-Gadu&quot;"><img src="https://upload.wikimedia.org/wikipedia/en/thumb/7/7f/Gadu-gadu.png/320px-Gadu-gadu.png" alt="&lt;span class=&quot;mw-page-title-main&quot;&gt;Gadu-Gadu&lt;/span&gt; Instant messaging software"/><p><b>Gadu-Gadu</b> is a Polish instant messaging client using a proprietary protocol. Gadu-Gadu was the most popular IM service in Poland, with over 15 million registered accounts and approximately 6.5 million users online daily. Gadu-Gadu's casual gaming portal had some 500,000 active users at the end of March 2009. Users send up to 300 million messages per day.</p></div><div class="wikiMiliCard " onclick="location.href=&quot;./Psi_%28instant_messaging_client%29&quot;"><img src="https://upload.wikimedia.org/wikipedia/commons/0/07/Psi_icon_new.png" alt="&lt;span class=&quot;mw-page-title-main&quot;&gt;Psi (instant messaging client)&lt;/span&gt;"/><p><b>Psi</b> is a free instant messaging client for the XMPP protocol which uses the Qt toolkit. It runs on Linux, Windows, macOS and OS/2.</p></div><div class="wikiMiliCard wikiMiliParaCard" onclick="location.href=&quot;./Comparison_of_email_clients&quot;"><p>The following tables compare general and technical features of notable email client programs.</p></div><div class="wikiMiliCard " onclick="location.href=&quot;./Google_Talk&quot;"><img src="https://upload.wikimedia.org/wikipedia/commons/thumb/9/93/Talk_%28Google%29.svg/320px-Talk_%28Google%29.svg.png" alt="&lt;span class=&quot;mw-page-title-main&quot;&gt;Google Talk&lt;/span&gt; Instant messaging service"/><p><b>Google Talk</b> was an instant messaging service that provided both text and voice communication. The instant messaging service was variously referred to colloquially as <b>Gchat</b>, <b>Gtalk</b>, or <b>Gmessage</b> among its users.</p></div><div class="wikiMiliCard " onclick="location.href=&quot;./BitlBee&quot;"><img src="https://upload.wikimedia.org/wikipedia/commons/e/e1/Bitlbee_logo.png" alt="&lt;span class=&quot;mw-page-title-main&quot;&gt;BitlBee&lt;/span&gt;"/><p><b>BitlBee</b> is a cross-platform IRC instant messaging gateway, licensed under the terms of the GNU General Public License.</p></div><div class="wikiMiliCard " onclick="location.href=&quot;./Xfire&quot;"><img src="https://upload.wikimedia.org/wikipedia/en/2/24/New_Xfire_style_screenshot.png" alt="&lt;span class=&quot;mw-page-title-main&quot;&gt;Xfire&lt;/span&gt; Instant messaging service and game server browser"/><p><b>Xfire</b> was a proprietary freeware instant messaging service for gamers that also served as a game server browser with various other features. It was available for Microsoft Windows.</p></div><div class="wikiMiliCard wikiMiliParaCard" onclick="location.href=&quot;./Off-the-Record_Messaging&quot;"><p><b>Off-the-Record Messaging</b> (<b>OTR</b>) is a cryptographic protocol that provides encryption for instant messaging conversations. OTR uses a combination of AES symmetric-key algorithm with 128 bits key length, the Diffie&#8211;Hellman key exchange with 1536 bits group size, and the SHA-1 hash function. In addition to authentication and encryption, OTR provides forward secrecy and malleable encryption.</p></div><div class="wikiMiliCard " onclick="location.href=&quot;./Kadu_%28software%29&quot;"><img src="https://upload.wikimedia.org/wikipedia/commons/thumb/5/5e/Kadu_0.11.0.png/320px-Kadu_0.11.0.png" alt="&lt;span class=&quot;mw-page-title-main&quot;&gt;Kadu (software)&lt;/span&gt;"/><p><b>Kadu</b> is a free and open source multi-platform instant messaging client that supports Gadu-Gadu, XMPP IM networks and other services based on XMPP like Google Talk. It is written in C++ using Qt Framework, and released under the GNU GPL-2.0-or-later.</p></div><div class="wikiMiliCard " onclick="location.href=&quot;./Instantbird&quot;"><img src="https://upload.wikimedia.org/wikipedia/commons/thumb/e/e9/Instantbird_Chat_Window_Screenshot.png/320px-Instantbird_Chat_Window_Screenshot.png" alt="&lt;span class=&quot;mw-page-title-main&quot;&gt;Instantbird&lt;/span&gt; Cross-platform instant messaging client"/><p><b>Instantbird</b> is a discontinued cross-platform instant messaging client based on Mozilla's XULRunner and the open-source library <i>libpurple</i> used in Pidgin. Instantbird is free software available under the GNU General Public License. Over 250 add-ons allow user customization of, and addition of, features. On October 18, 2017, Florian Qu&#232;ze announced that "... we are stopping development of Instantbird as a standalone product."</p></div><div class="wikiMiliCard " onclick="location.href=&quot;./Spark_%28XMPP_client%29&quot;"><img src="https://upload.wikimedia.org/wikipedia/commons/a/a8/Spark_%28XMPP_client%29_logo.png" alt="&lt;span class=&quot;mw-page-title-main&quot;&gt;Spark (XMPP client)&lt;/span&gt;"/><p><b>Spark</b> is an open-source instant messaging program that allows users to communicate in real time. It can be integrated with the Openfire server to provide additional features such as controlling the various Spark functionalities from a central management console, or integrating with a proprietary customer support service known as Fastpath which allows its users to interact with the platform using the Spark client. Being a cross-platform application, Spark can run on various systems. Installers for Windows, macOS and Linux are available on the official website.</p></div></div><h2 id="References">References</h2><style data-mw-deduplicate="TemplateStyles:r1011085734" typeof="mw:Extension/templatestyles mw:Transclusion" about="#mwt25" data-mw="{&quot;parts&quot;:[{&quot;template&quot;:{&quot;target&quot;:{&quot;wt&quot;:&quot;reflist&quot;,&quot;href&quot;:&quot;./Template:Reflist&quot},&quot;params&quot;:{},&quot;i&quot;:0}}]}" id="mwKA">.mw-parser-output .reflist{font-size:90%;margin-bottom:0.5em;list-style-type:decimal}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist   " about="#mwt25" id="mwKQ"><div class="mw-references-wrap" typeof="mw:Extension/references" about="#mwt29" data-mw="{&quot;name&quot;:&quot;references&quot;,&quot;attrs&quot;:{&quot;group&quot;:&quot;&quot;,&quot;responsive&quot;:&quot;1&quot;},&quot;body&quot;:{&quot;html&quot;:&quot;&quot;}}" id="mwKg"><ol class="mw-references references" id="mwKw"><li about="#cite_note-1" id="cite_note-1"> <a href="./Tlen.pl#cite_ref-1" rel="mw:referencedBy" id="mwLA"><span class="mw-linkback-text" id="mwLQ">&#8593; </span></a> <span id="mw-reference-text-cite_note-1" class="mw-reference-text"><style data-mw-deduplicate="TemplateStyles:r1133582631" typeof="mw:Extension/templatestyles mw:Transclusion" about="#mwt13" data-mw="{&quot;parts&quot;:[{&quot;template&quot;:{&quot;target&quot;:{&quot;wt&quot;:&quot;Cite web&quot;,&quot;href&quot;:&quot;./Template:Cite_web&quot},&quot;params&quot;:{&quot;url&quot;:{&quot;wt&quot;:&quot;http://pclab.pl/news69582.html&quot},&quot;title&quot;:{&quot;wt&quot;:&quot;Komunikator Tlen zako&#324;czy&#322;sw&#243;j &#380;ywot&quot},&quot;language&quot;:{&quot;wt&quot;:&quot;Polish&quot}},&quot;i&quot;:0}}]}" id="mwLg">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free a,.mw-parser-output .citation .cs1-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited a,.mw-parser-output .id-lock-registration a,.mw-parser-output .citation .cs1-lock-limited a,.mw-parser-output .citation .cs1-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription a,.mw-parser-output .citation .cs1-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:#d33}.mw-parser-output .cs1-visible-error{color:#d33}.mw-parser-output .cs1-maint{display:none;color:#3a3;margin-left:0.3em}.mw-parser-output .cs1-format{font-size:95%}.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}</style><cite class="citation web cs1 cs1-prop-foreign-lang-source" about="#mwt13" id="mwLw"> <a rel="mw:ExtLink nofollow" href="http://pclab.pl/news69582.html" class="external text" id="mwMA">"Komunikator Tlen zako&#324;czy&#322; sw&#243;j &#380;ywot"</a> (in Polish).</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=Komunikator+Tlen+zako%C5%84czy%C5%82+sw%C3%B3j+%C5%BCywot&amp;rft_id=http%3A%2F%2Fpclab.pl%2Fnews69582.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3ATlen.pl" class="Z3988" about="#mwt13" id="mwMQ"/><link rel="mw:PageProp/Category" target="_blank" href="//en.wikipedia.org/wiki/Category:CS1_Polish-language_sources_(pl)" about="#mwt13" id="mwMg"/></span></li><li about="#cite_note-2" id="cite_note-2"> <a href="./Tlen.pl#cite_ref-2" rel="mw:referencedBy" id="mwMw"><span class="mw-linkback-text" id="mwNA">&#8593; </span></a> <span id="mw-reference-text-cite_note-2" class="mw-reference-text"> <a rel="mw:ExtLink nofollow" href="http://audyt.gemius.pl/komunikatory_wyniki.php" class="external autonumber" id="mwNQ"/> <a rel="mw:ExtLink nofollow" href="https://web.archive.org/web/20080603135531/http://audyt.gemius.pl/komunikatory_wyniki.php" about="#mwt18" class="external text" data-mw="{&quot;parts&quot;:[{&quot;template&quot;:{&quot;target&quot;:{&quot;wt&quot;:&quot;webarchive &quot;,&quot;href&quot;:&quot;./Template:Webarchive&quot;},&quot;params&quot;:{&quot;url&quot;:{&quot;wt&quot;:&quot;https://web.archive.org/web/20080603135531/http://audyt.gemius.pl/komunikatory_wyniki.php&quot;},&quot;date&quot;:{&quot;wt&quot;:&quot;June 3, 2008&quot;}},&quot;i&quot;:0}}]}" id="mwNg">Archived</a> <span about="#mwt18" id="mwNw"> June 3, 2008, at the </span> <a rel="mw:WikiLink" href="./Wayback_Machine" title="Wayback Machine" about="#mwt18" id="mwOA">Wayback Machine</a> <link rel="mw:PageProp/Category" target="_blank" href="//en.wikipedia.org/wiki/Category:Webarchive_template_wayback_links" about="#mwt18" id="mwOQ"/></span></li><li about="#cite_note-3" id="cite_note-3"> <a href="./Tlen.pl#cite_ref-3" rel="mw:referencedBy" id="mwOg"><span class="mw-linkback-text" id="mwOw">&#8593; </span></a> <span id="mw-reference-text-cite_note-3" class="mw-reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1133582631" about="#mwt21" typeof="mw:Extension/templatestyles mw:Transclusion" data-mw="{&quot;parts&quot;:[{&quot;template&quot;:{&quot;target&quot;:{&quot;wt&quot;:&quot;Cite web&quot;,&quot;href&quot;:&quot;./Template:Cite_web&quot;},&quot;params&quot;:{&quot;url&quot;:{&quot;wt&quot;:&quot;http://www.komputerswiat.pl/nowosci/programy/2016/20/tlen-to-juz-koniec-popularnego-komunikatora.aspx&quot;},&quot;title&quot;:{&quot;wt&quot;:&quot;Tlen - to ju&#380; koniec popularnego komunikatora&quot;},&quot;date&quot;:{&quot;wt&quot;:&quot;9 May 2016&quot;},&quot;language&quot;:{&quot;wt&quot;:&quot;Polish&quot;}},&quot;i&quot;:0}}]}" id="mwPA"/><cite class="citation web cs1 cs1-prop-foreign-lang-source" about="#mwt21" id="mwPQ"> <a rel="mw:ExtLink nofollow" href="http://www.komputerswiat.pl/nowosci/programy/2016/20/tlen-to-juz-koniec-popularnego-komunikatora.aspx" class="external text" id="mwPg">"Tlen - to ju&#380; koniec popularnego komunikatora"</a> (in Polish). 9 May 2016.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=Tlen+-+to+ju%C5%BC+koniec+popularnego+komunikatora&amp;rft.date=2016-05-09&amp;rft_id=http%3A%2F%2Fwww.komputerswiat.pl%2Fnowosci%2Fprogramy%2F2016%2F20%2Ftlen-to-juz-koniec-popularnego-komunikatora.aspx&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3ATlen.pl" class="Z3988" about="#mwt21" id="mwPw"/><link rel="mw:PageProp/Category" target="_blank" href="//en.wikipedia.org/wiki/Category:CS1_Polish-language_sources_(pl)" about="#mwt21" id="mwQA"/></span></li></ol></div></div></section><section data-mw-section-id="3" id="mwQQ"><h2 id="External_links">External links</h2><ul id="mwQg"><li id="mwQw"><span class="official-website" about="#mwt30"  data-mw="{&quot;parts&quot;:[{&quot;template&quot;:{&quot;target&quot;:{&quot;wt&quot;:&quot;Official website&quot;,&quot;href&quot;:&quot;./Template:Official_website&quot;},&quot;params&quot;:{&quot;1&quot;:{&quot;wt&quot;:&quot;mail.tlen.pl&quot;}},&quot;i&quot;:0}}]}" id="mwRA"><span class="url"> <a rel="mw:ExtLink nofollow" href="http://mail.tlen.pl" class="external text">Official website</a> </span></span><link rel="mw:PageProp/Category" target="_blank" href="//en.wikipedia.org/wiki/Category:Official_website_different_in_Wikidata_and_Wikipedia" about="#mwt30" id="mwRQ"/></li><li id="mwRg"> <a rel="mw:ExtLink nofollow" href="http://tleenx.sourceforge.net/" class="external text" id="mwRw">TleenX</a> - open-source GTK+ Tlen.pl client</li></ul><link rel="mw:PageProp/Category" target="_blank" href="//en.wikipedia.org/wiki/Category:Windows-only_freeware" id="mwSA"/><link rel="mw:PageProp/Category" target="_blank" href="//en.wikipedia.org/wiki/Category:Windows-only_instant_messaging_clients" id="mwSQ"/><link rel="mw:PageProp/Category" target="_blank" href="//en.wikipedia.org/wiki/Category:Internet_in_Poland" id="mwSg"/><link rel="mw:PageProp/Category" target="_blank" href="//en.wikipedia.org/wiki/Category:Software_that_uses_Qt" id="mwSw"/><link rel="mw:PageProp/Category" target="_blank" href="//en.wikipedia.org/wiki/Category:Discontinued_software" id="mwTA"/><link rel="mw:PageProp/Category" target="_blank" href="//en.wikipedia.org/wiki/Category:2001_software" id="mwTQ"/><link rel="mw:PageProp/Category" target="_blank" href="//en.wikipedia.org/wiki/Category:2001_establishments_in_Poland" id="mwTg"/><link rel="mw:PageProp/Category" target="_blank" href="//en.wikipedia.org/wiki/Category:2016_disestablishments_in_Poland" id="mwTw"/></section><div class="ref-link">This page is based on this <a target="_blank" href="//en.wikipedia.org/wiki/Tlen.pl">Wikipedia article</a> <br>Text is available under the <a href="//creativecommons.org/licenses/by-sa/4.0/" target="_blank">CC BY-SA 4.0</a> license; additional terms may apply.<br>Images, videos and audio are available under their respective licenses.</div></body></html>