i2p.www/www.i2p2/pages/supported_applications.html

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<h1 class="title">Supported Applications</h1>

<div id="TOC">
  <ul>
    <li><a href="#blogging-and-forums">Blogging, Forums, and Wikis</a></li>

    <li><a href="#decentralized-file-storage">Decentralized File
    Storage</a></li>

    <li>
      <a href="#development-tools">Development Tools</a>

      <ul>
        <li><a href="#version-control">Version control</a></li>
      </ul>
    </li>

    <li><a href="#domain-naming">Domain Naming</a></li>

    <li><a href="#email">Email</a></li>

    <li>
      <a href="#file-sharing">File Sharing</a>

      <ul>
        <li><a href="#bittorrent-clients">BitTorrent clients</a></li>

        <li><a href="#bittorrent-trackers-and-indexers">BitTorrent trackers
        and indexers</a></li>

        <li><a href="#ed2k">ED2K</a></li>

        <li><a href="#gnutella">Gnutella</a></li>
      </ul>
    </li>

    <li>
      <a href="#network-administration">Network Administration</a>

      <ul>
        <li><a href="#general-purpose-socket-utilities">General-purpose
        socket utilities</a></li>

        <li><a href="#sshscpsftp">SSH/SCP/SFTP</a></li>
      </ul>
    </li>

    <li>
      <a href="#real-time-chat">Real-time Chat</a>

      <ul>
        <li><a href="#instant-messaging-clients">Instant messaging
        clients</a></li>

        <li><a href="#irc-clients">IRC clients</a></li>

        <li><a href="#irc-servers">IRC servers</a></li>
      </ul>
    </li>

    <li>
      <a href="#web-browsing">Web Browsing</a>

      <ul>
        <li><a href="#anonymous-websites">Anonymous websites</a></li>

        <li><a href="#proxy-software">Proxy software</a></li>

        <li><a href="#inproxies">Inproxies</a></li>

        <li><a href="#outproxies">Outproxies</a></li>
      </ul>
    </li>

    <li>
      <a href="#website-hosting">Website Hosting</a>

      <ul>
        <li><a href="#web-servers">Web servers</a></li>
      </ul>
    </li>
  </ul>
</div>

<p>This is intended to be a comprehensive listing of applications used with
I2P. If you know of something that's missing please submit a ticket on
<a href="http://trac.i2p2.de/report//">Trac</a>, and be sure to select the
“www” component in the submission form.</p>

<p>Supported applications are tagged with one or more of the following:</p>

<dl>
  <dt><em>bundled</em></dt>

  <dd>
    <p><em>Bundled application</em> — I2P ships with a few officially
    supported applications that let new users take immediate advantage of
    some of I2P's more useful capabilities.</p>
  </dd>

  <dt><em>plugin</em></dt>

  <dd>
    <p><em>Third-party plugin</em> — I2P's plugin system provides convenient
    deployment of I2P-enabled applications and allows tighter integration
    with the router. Plugins are [reviewed by the community](<a href=
    "http://plugins.i2p">http://plugins.i2p</a>) to identify security and
    anonymity issues.</p>
  </dd>
</dl>

<dl>
  <dt><em>standalone, standalone/mod</em></dt>

  <dd>
    <p><em>Third-party standalone application</em> — Many standard network
    applications only require careful setup and configuration to communicate
    anonymously over I2P. These are tagged with <em>standalone</em>. Some
    applications, tagged with <em>standalone/mod</em>, require patching to
    function properly over I2P or to prevent inadvertent disclosure of
    identifying information such as the user's hostname or external IP
    address.</p>
  </dd>

  <dt><em>service</em></dt>

  <dd>
    <p><em>Third-party essential network service</em> — Services which on
    the I2P network are analogous to those provided on the public Internet
    by hosting providers, ISPs, and Google: eepsite indexes and jump
    services, search engines, email, DNS-style name services, hosting,
    proxies, etc. These services focus on boosting the usefulness of the
    network as a whole, and making network content more discoverable.</p>
  </dd>

  <dt><em>unmaintained</em></dt>

  <dd>
    <p><em>Unmaintained</em> — This is used to tag plugins, applications,
    and services which appear to be unmaintained and may be removed from
    this listing in the future.</p>
  </dd>
</dl>

<p><strong>Warning: Using an application, plugin, or service with I2P
doesn't automatically protect your anonymity. I2P is merely a set of tools
which can help you mitigate certain <a href="how_threatmodel">identified
threats to anonymity</a>. We do not and cannot make any guarantees about the
safety of the applications, plugins, and services listed below. Most
applications and plugins must be properly configured, and some will need to
be patched — and even then your anonymity might not be assured. Similarly,
services could put your anonymity at risk, either by design or through
carelessness on their part or your own.</strong></p>

<p><strong>If you have doubts about the suitability of an application,
plugin, or service for use with I2P, you are urged to inquire about privacy
issues with its maintainers, to search its mailing lists and bug tracker if
one exists, and consult trusted, knowledgeable members of the I2P
community.</strong></p>

<p><strong>Take responsibility for your own anonymity and safety — always
seek expert advice, educate yourself, practice good judgment, be mindful of
disclosing personally identifying information, and don't take
shortcuts.</strong></p>

<h3 id="blogging-and-forums"><a href="#TOC">Blogging, Forums, and Wikis</a></h3>

<ul>
    <!-- let's disable this for now, at least, since it's nearly impossible to
    find configuration instructions; plus, there certainly isn't a plugin
    available for this.
  <li>
    <p><a href="http://www.blojsom.com/blog/"><strong>Blojsom</strong></a> —
    Lightweight blogging platform.
    <sup><em>[plugin,&nbsp;standalone/mod]</em></sup></p>
  </li>
  -->

  <li>
    <p><a href="http://github.com/trevorturk/eldorado/"><strong>El
    Dorado</strong></a> — Lightweight forum software.
    <sup><em>[standalone/mod]</em></sup></p>
  </li>

  <li>
    <p><a href="http://pebble.sourceforge.net/"><strong>Pebble</strong></a>
    — Another lightweight blogging platform.
    <sup><em>[plugin,&nbsp;standalone/mod]</em></sup></p>
  </li>

  <li>
    <p><a href="http://www.phpbb.com/"><strong>phpBB</strong></a> — Most
    popular open source forum software.
    <sup><em>[standalone/mod]</em></sup></p>
  </li>

  <li>
    <p><a href="http://syndie.i2p2.de/"><strong>Syndie</strong></a> —
    Distributed forums software, originally developed by jrandom.
    <sup><em>[plugin,&nbsp;standalone,&nbsp;unmaintained]</em></sup></p>
  </li>
  <li>
     <p><a href="http://jamwiki.org"><strong>JAMWiki</strong></a> —
     A Java-based MediaWiki clone. No external database needed.
     Plugin available <a href="http://plugins.i2p/plugins/jamwiki">here</a>.
     <sup><em>[standalone,&nbsp;plugin]</em></sup></p>
  </li>
</ul>

<h3 id="decentralized-file-storage"><a href="#TOC">Decentralized File
Storage</a></h3>

<ul>
  <li><a href=
  "http://killyourtv.i2p/tahoe-lafs/"><strong>Tahoe-LAFS-I2P</strong></a> — Port
  of the <a href="http://tahoe-lafs.org/"><strong>Tahoe-LAFS</strong></a>
  distributed file system to the I2P network. Controller plugin <a href=
  "http://stats.i2p/i2p/plugins/">here</a>.
  <sup><em>[plugin,&nbsp;standalone]</em></sup></li>
</ul>

<h3 id="development-tools"><a href="#TOC">Development Tools</a></h3>

<h4 id="version-control"><a href="#TOC">Version control</a></h4>

<ul>
  <li>
    <p><a href="http://git-scm.com/"><strong>Git</strong></a> — Most popular
    distributed version control system. <sup><em>[standalone]</em></sup></p>
  </li>

  <li>
    <p><a href="http://monotone.ca/"><strong>Monotone</strong></a> — Another
    distributed version control system. Currently <a href=
    "monotone.html">used in I2P development</a>.
    <sup><em>[standalone]</em></sup></p>
  </li>
</ul>

<h3 id="domain-naming"><a href="#TOC">Domain Naming</a></h3>

<ul>
  <li><a href="http://127.0.0.1:7657/susidns/"><strong>susidns</strong></a>
  — Provides management of addressbooks, which are part of a simple,
  user-controlled <a href="naming.html">I2P naming system</a> somewhat
  analogous to the Internet's Domain Name System (DNS). Addressbooks map
  Base64 destinations to short, usually human-readable “domain” names ending
  with a .i2p suffix which the I2P router's HTTP client can resolve back to
  Base64 addresses. (<em>Note:</em> While Base64 destinations are globally
  unique, addressbook “domain” names only resolve to unique destinations
  locally.) <sup><em>[bundled]</em></sup></li>
</ul>

<h3 id="email"><a href="#TOC">Email</a></h3>

<ul>
  <li>
    <p><a href="http://i2pbote.i2p/"><strong>I2P-Bote</strong></a> —
    Serverless peer-to-peer email application using a distributed hash table
    (DHT) for secure mail storage. <sup><em>[plugin]</em></sup></p>
  </li>

  <li>
    <p><a href="http://hq.postman.i2p/"><strong>Postman's anonymous email
    service</strong></a> — Provides email service within the I2P network via
    @mail.i2p addresses, and email gateway service between the I2P network
    and the public Internet via @i2pmail.org addresses. One of the oldest
    continuous services on I2P. <sup><em>[service]</em></sup></p>
  </li>

  <li>
    <p><a href=
    "http://127.0.0.1:7657/susimail/susimail"><strong>susimail</strong></a>
    — Simple web browser-based email interface. Configured to use Postman's
    email service by default. <sup><em>[bundled]</em></sup></p>
  </li>
</ul>

<h3 id="file-sharing"><a href="#TOC">File Sharing</a></h3>

<h4 id="bittorrent-clients"><a href="#TOC">BitTorrent clients</a></h4>

<ul>
  <li>
    <p><a href=
    "http://127.0.0.1:7657/i2psnark/"><strong>I2PSnark</strong></a> — I2P's
    integrated BitTorrent client. <sup><em>[bundled]</em></sup></p>
  </li>

  <li>
    <p><a href=
    "http://forum.i2p/viewtopic.php?t=4532"><strong>I2PSnarkXL</strong></a>
    — Modified version of I2PSnark. <sup><em>[standalone]</em></sup></p>
  </li>

  <li>
    <p><a href="http://bob.i2p/Robert.html"><strong>Robert</strong></a> — a
    fork of rufus that uses the Basic Open Bridge (BOB) and has many
    improvements, including using the latest wxwidgets and python. It also
    supports use of seedless if installed for trackerless torrents and
    magnet-link like fetching of torrents within i2p.
    <sup><em>[standalone]</em></sup></p>
  </li>

  <li>
    <p><a href=
    "http://www.transmissionbt.com/"><strong>Transmission</strong></a> —
    Clean, full-featured cross-platform BitTorrent client with official
    ports for several GUI toolkits. <sup><em>[standalone/mod]</em></sup></p>
  </li>

  <li>
    <p><a href="http://www.vuze.com/"><strong>Azureus/Vuze</strong></a> —
    Had a built-in I2P transport for a while.
    <sup><em>[standalone,&nbsp;unmaintained]</em></sup></p>
  </li>
</ul>

<h4 id="bittorrent-trackers-and-indexers"><a href="#TOC">BitTorrent trackers
and indexers</a></h4>

<p>For a detailed feature comparison of I2P-enabled trackers/indexers, see
<a href="http://zzz.i2p/files/trackers.html">here</a>.</p>

<ul>
  <li>
    <p><a href=
    "http://echelon.i2p/tracker/"><strong>Bytemonsoon</strong></a> — The
    code that powered one of the first major tracker/indexer sites on the
    Internet. Patched for I2P. <sup><em>[standalone/mod]</em></sup></p>
  </li>

  <li>
    <p><a href=
    "http://erdgeist.org/arts/software/opentracker/"><strong>opentracker</strong></a>
    — Lightweight tracker/indexer. I2P mod available in the i2p.opentracker
    branch of the <a href="newdevelopers.html">I2P Monotone repository</a>.
    <sup><em>[standalone/mod]</em></sup></p>
  </li>

  <li>
    <p><a href="http://stats.i2p/i2p/plugins/"><strong>zzzot</strong></a> —
    <a href="http://zzz.i2p/">zzz's</a> Java-based open tracker. More info
    <a href="http://zzz.i2p/topics/598?page=1#p2085">here</a>.
    <sup><em>[plugin]</em></sup></p>
  </li>
</ul>

<h4 id="ed2k"><a href="#TOC">ED2K</a></h4>

<ul>
  <li><a href=
  "http://forum.i2p/viewtopic.php?t=2213"><strong>iMule</strong></a> — I2P
  port of the aMule ED2K client. <sup><em>[standalone]</em></sup></li>
</ul>

<h4 id="gnutella"><a href="#TOC">Gnutella</a></h4>

<ul>
  <li>
    <p><a href=
    "http://forum.i2p/viewforum.php?f=25"><strong>I2Phex</strong></a> — Port
    of the <a href="http://www.phex.org/">Phex</a> Gnutella client. Website
    for plugin version <a href="http://stats.i2p/i2p/plugins/">here</a>.
    <sup><em>[plugin,&nbsp;standalone]</em></sup></p>
  </li>

  <li>
    <p><a href=
    "http://forum.i2p/viewtopic.php?p=9486#9486"><strong>jwebcache</strong></a>
    — Cache for Gnutella peers on I2P. Website for plugin version <a href=
    "http://stats.i2p/i2p/plugins/">here</a>.
    <sup><em>[plugin,&nbsp;standalone]</em></sup></p>
  </li>
</ul>

<h3 id="network-administration"><a href="#TOC">Network
Administration</a></h3>

<h4 id="general-purpose-socket-utilities"><a href="#TOC">General-purpose
socket utilities</a></h4>

<ul>
  <li>
    <p><a href="http://nc110.sourceforge.net/"><strong>netcat</strong></a> —
    Unix standard tool for socket relaying. Several clones, ports, and forks
    have appeared over the years. <sup><em>[standalone]</em></sup></p>
  </li>

  <li>
    <p><a href=
    "http://www.dest-unreach.org/socat/"><strong>socat</strong></a> — Like
    netcat but more powerful. <sup><em>[standalone]</em></sup></p>
  </li>

  <li>
    <p><a href="http://tsocks.sourceforge.net/"><strong>tsocks</strong></a>
    — Proxy providing simple, transparent SOCKS-ification of network
    applications. <sup><em>[standalone]</em></sup></p>
  </li>
</ul>

<h4 id="sshscpsftp"><a href="#TOC">SSH/SCP/SFTP</a></h4>

<ul>
  <li>
    <p><a href="http://www.openssh.com/"><strong>OpenSSH</strong></a> — Most
    popular implementation of the Secure Shell (SSH) protocol and related
    tools. <sup><em>[standalone]</em></sup></p>
  </li>

  <li>
    <p><a href=
    "http://www.chiark.greenend.org.uk/~sgtatham/putty/"><strong>PuTTY</strong></a>
    — Open source Secure Shell (SSH) client for Windows.
    <sup><em>[standalone]</em></sup></p>
  </li>
</ul>

<h3 id="real-time-chat"><a href="#TOC">Real-time Chat</a></h3>

<h4 id="instant-messaging-clients"><a href="#TOC">Instant messaging
clients</a></h4>

<ul>
  <li><a href="http://forum.i2p/viewtopic.php?t=2474"><strong>I2P
  Messenger</strong></a> — IM client with multiple incarnations.
  <sup><em>[standalone]</em></sup></li>
</ul>

<h4 id="irc-clients"><a href="#TOC">IRC clients</a></h4>

<p>Many IRC clients leak identifying information to servers or other
clients, so I2P's IRC and SOCKS IRC client tunnels filter certain inbound
and outbound messages to scrub data such as LAN IP addresses, external IP
addresses, local hostnames, and the name and version of the IRC client. Two
message types in particular, DCC and CTCP, can't be sufficiently anonymized
without changes to the protocols or to IRC client/server code, so they are
completely blocked, except for CTCP ACTION (the message emitted by the
<code>/me</code> command) which isn't inherently dangerous.</p>

<p>I2P's IRC filtering may not cover every possible leak — users should also
check if their client is sending their real name or local username. Packet
sniffers such as <a href="http://www.wireshark.org/">Wireshark</a> are
useful here. Eliminating remaining leaks may be as simple as changing the
client's default configuration. If that doesn't help, inform the I2P
developers; they may be able to solve it via additional filtering.</p>

<ul>
  <li>
    <p><a href="http://jircii.dashnine.org/"><strong>jIRCii</strong></a> —
    Small Java-based IRC client. Plugin available <a href=
    "http://stats.i2p/i2p/plugins/">here</a>.
    <sup><em>[plugin,&nbsp;standalone]</em></sup></p>
  </li>

  <li>
    <p><a href="http://xchat.org/"><strong>XChat</strong></a> —
    Cross-platform graphical IRC client.
    <sup><em>[standalone]</em></sup></p>
  </li>

  <li>
    <p><a href="http://www.irssi.org/"><strong>irssi</strong></a> — Unixy
    terminal-based IRC client. <sup><em>[standalone]</em></sup></p>
  </li>

  <li>
    <p><a href="http://www.weechat.org/"><strong>WeeChat</strong></a> —
    Another Unixy terminal-based IRC client.
    <sup><em>[standalone]</em></sup></p>
  </li>
</ul>

<h4 id="irc-servers"><a href="#TOC">IRC servers</a></h4>

<ul>
  <li>
    <p><a href=
    "http://ngircd.barton.de/index.php.en"><strong>ngIRCd</strong></a> — IRC
    server developed from scratch. <sup><em>[standalone/mod]</em></sup></p>
  </li>

  <li>
    <p><a href="http://www.unrealircd.com/"><strong>UnrealIRCd</strong></a>
    — Most popular IRC server. <sup><em>[standalone/mod]</em></sup></p>
  </li>
</ul>

<h3 id="web-browsing"><a href="#TOC">Web Browsing</a></h3>

<h4 id="anonymous-websites"><a href="#TOC">Anonymous websites</a></h4>

<ul>
  <li>
    <p><strong>Eepsites</strong> — Any website hosted anonymously on I2P,
    reachable through the I2P router's HTTP proxy.
    <sup><em>[service]</em></sup></p>
  </li>

  <li>
    <p><strong>Deepsites</strong> — Distributed anonymous websites hosted
    using Tahoe-LAFS-I2P, currently only reachable with Tahoe-LAFS-I2P
    clients or through the Tahoe-LAFS-I2P HTTP proxy.
    <sup><em>[service]</em></sup></p>
  </li>

  <li>
    <p><a href="http://i2host.i2p/"><strong>i2host.i2p</strong></a> —
    Website for <a href="http://sponge.i2p/">sponge's</a> jump service.
    Source code available. <sup><em>[service]</em></sup></p>
  </li>

  <li>
    <p><a href="http://i2jump.i2p/"><strong>i2jump.i2p</strong></a> —
    Another jump service. <sup><em>[service]</em></sup></p>
  </li>

  <li>
    <p><a href="http://perv.i2p/"><strong>perv.i2p</strong></a> —
    Dynamically updated eepsite index. <sup><em>[service]</em></sup></p>
  </li>

  <li>
    <p><a href="http://stats.i2p/"><strong>stats.i2p</strong></a> — Website
    for <a href="http://zzz.i2p/">zzz's</a> jump service.
    <sup><em>[service]</em></sup></p>
  </li>
</ul>

<h4 id="proxy-software"><a href="#TOC">Proxy software</a></h4>

<ul>
  <li>
    <p><a href=
    "http://www.pps.jussieu.fr/~jch/software/polipo/"><strong>Polipo</strong></a>
    — SOCKS-enabled caching web proxy with basic filtering capabilities.
    <sup><em>[standalone]</em></sup></p>
  </li>

  <li>
    <p><a href="http://www.privoxy.org/"><strong>Privoxy</strong></a> —
    Privacy-focused non-caching web proxy with advanced filtering
    capabilities. Excels at removing ads and other junk.
    <sup><em>[standalone]</em></sup></p>
  </li>

  <li>
    <p><a href="http://www.squid-cache.org/"><strong>Squid</strong></a> —
    Venerable caching web proxy. <sup><em>[standalone]</em></sup></p>
  </li>
</ul>

<h4 id="inproxies"><a href="#TOC">Inproxies</a></h4>

<p>Gateways allowing users on the public Internet to access eepsites.</p>

<ul>
  <li><a href="http://i2p.to/"><strong>i2p.to</strong></a> — <a href=
  "http://tino.i2p/">tino's</a> inproxy on the public Internet.
  <sup><em>[service]</em></sup></li>
</ul>

<h4 id="outproxies"><a href="#TOC">Outproxies</a></h4>

<p>Gateways allowing I2P users to access content hosted on the public
Internet.</p>

<ul>
  <li><a href="http://false.i2p/"><strong>false.i2p</strong></a> — Publicly
  advertised outproxy running Squid, located in Germany.
  <sup><em>[service]</em></sup></li>
</ul>

<h3 id="website-hosting"><a href="#TOC">Website Hosting</a></h3>

<ul>
  <li><a href="http://jetty.codehaus.org/jetty/"><strong>Jetty</strong></a>
  — Lightweight web server and Java servlet container. I2P is tightly
  integrated with a bundled copy of Jetty which by default is configured to
  host the <a href="http://127.0.0.1:7658/">user's eepsite</a>. The bundled
  Jetty also serves the I2P router console and web applications bundled with
  I2P. <sup><em>[bundled,&nbsp;standalone]</em></sup></li>
</ul>

<h4 id="web-servers"><a href="#TOC">Web servers</a></h4>

<p>In addition to Jetty, any web server should function over I2P without
modification so long as it's HTTP-compliant. Some web servers known to
currently serve content on the I2P network are:</p>

<ul>
  <li>
    <p><a href="http://httpd.apache.org/"><strong>Apache HTTP
    Server</strong></a> — Most popular web server on the public WWW.
    <sup><em>[standalone]</em></sup></p>
  </li>

  <li>
    <p><a href="http://tomcat.apache.org/"><strong>Apache
    Tomcat</strong></a> — Web server and Java servlet container. More
    features than Jetty. <sup><em>[standalone]</em></sup></p>
  </li>

  <li>
    <p><a href="http://www.lighttpd.net/"><strong>lighttpd</strong></a> —
    Fast lightweight web server. <sup><em>[standalone]</em></sup></p>
  </li>

  <li>
    <p><a href="http://www.nginx.org/"><strong>nginx</strong></a> —
    High-performance lightweight web server.
    <sup><em>[standalone]</em></sup></p>
  </li>
</ul>
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