List of applications/Internet

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Internet

Network connection

Network managers

This article or section is a candidate for moving to Network configuration#Network managers.

Notes: There's a dedicated article. (Discuss in Talk:List of applications/Internet#)

ConnMan — Daemon for managing internet connections within embedded devices running the Linux operating system. Comes with a command-line client, plus Enlightenment, ncurses, GTK and Dmenu clients are available.

https://01.org/connman || connman

dhclient — DHCP client from the Internet Systems Consortium.

https://www.isc.org/downloads/dhcp/ || dhclient

dhcpcd — RFC2131 compliant DHCP client daemon.

https://roy.marples.name/projects/dhcpcd || dhcpcd

netctl — Simple and robust tool to manage network connections via profiles. Intended for use with systemd.

https://projects.archlinux.org/netctl.git/ || netctl

NetworkManager — Manager that provides wired, wireless, mobile broadband and OpenVPN detection with configuration and automatic connection.

https://wiki.gnome.org/Projects/NetworkManager || CLI: networkmanager, GUI: network-manager-applet

systemd-networkd — Native systemd daemon that manages network configuration. It includes support for basic network configuration through udev.

http://www.freedesktop.org/software/systemd/man/systemd-networkd.service.html || systemd

Wicd — Wireless and wired connection manager with few dependencies. Comes with ncurses and GTK+ interfaces.

https://launchpad.net/wicd || CLI: wicd, GUI: wicd-gtk

Wifi Radar — WiFi Radar is a Python/PyGTK2 utility for managing wireless (and only wireless) profiles. It enables you to scan for available networks and create profiles for your preferred networks.

http://wifi-radar.tuxfamily.org/ || wifi-radar

wpa-cute — Is a graphical Qt wpa_supplicant front end to manage your wireless profiles only. It offer to change and add profiles or scan for networks and connect to them by WPS.

https://github.com/loh-tar/wpa-cute || wpa-cute^AUR

VPN clients

Bitmask — Secured and encrypted communication using various service providers

https://bitmask.net/ || bitmask^AUR

Libreswan — A free software implementation of the most widely supported and standarized VPN protocol based on ("IPsec") and the Internet Key Exchange ("IKE").

https://libreswan.org/ || libreswan^AUR

NetworkManager — Supports a variety of protocols (e.g. MS, Cisco, Fortinet) via a plugin system.

https://wiki.gnome.org/Projects/NetworkManager/VPN || networkmanager

OpenConnect — Supports Cisco and Juniper VPNs.

http://www.infradead.org/openconnect/ || openconnect

Openswan — IPsec-based VPN Solution.

https://www.openswan.org/ || openswan^AUR

OpenVPN — To connect to OpenVPN VPNs.

https://openvpn.net/ || openvpn

PPTP Client — To connect to PPTP VPNs, like Microsoft VPNs (MPPE). (insecure)

http://pptpclient.sourceforge.net/ || pptpclient

strongSwan — IPsec-based VPN Solution.

https://www.strongswan.org/ || strongswan

tinc — tinc is a free VPN daemon.

https://www.tinc-vpn.org/ || tinc

Vpnc — To connect to Cisco 3000 VPN Concentrators.

https://www.unix-ag.uni-kl.de/~massar/vpnc/ || vpnc

WireGuard — Next generation secure network tunnel.

https://www.wireguard.com/ || wireguard-tools

Proxy servers

Dante — SOCKS server and SOCKS client, implementing RFC 1928 and related standards.

https://www.inet.no/dante/ || dante

Privoxy — Non-caching web proxy with advanced filtering capabilities for enhancing privacy, modifying web page data and HTTP headers, controlling access, and removing ads and other obnoxious Internet junk.

https://www.privoxy.org/ || privoxy

Project V — Project V is a set of tools to help you build your own privacy network over internet.

https://www.v2ray.com/en/ || v2ray

Shadowsocks — Secure socks5 proxy, designed to protect your Internet traffic.

https://www.shadowsocks.org/en/index.html || Python: shadowsocks, C: shadowsocks-libev, Qt: shadowsocks-qt5

Squid — Caching proxy for the Web supporting HTTP, HTTPS, FTP, and more.

http://www.squid-cache.org/ || squid

Tinyproxy — Lightweight HTTP/HTTPS proxy daemon.

https://tinyproxy.github.io/ || tinyproxy

Trojan — An unidentifiable mechanism that helps you bypass GFW.

https://trojan-gfw.github.io/trojan/ || trojan

Varnish — High-performance HTTP accelerator.

https://varnish-cache.org/ || varnish

Ziproxy — Forwarding (non-caching) compressing HTTP proxy server.

http://ziproxy.sourceforge.net/ || ziproxy

Anonymizing networks

Freenet — An encrypted network without censorship.

https://freenetproject.org/ || freenet^AUR

GNUnet — Framework for secure peer-to-peer networking.

https://gnunet.org/ || CLI: gnunet, GUI: gnunet-gtk

I2P — Distributed anonymous network.

https://geti2p.net/ || i2p^AUR

Lantern — Peer-to-peer internet censorship circumvention software.

https://getlantern.org/ || lantern-bin^AUR

Tor — Anonymizing overlay network.

https://www.torproject.org/ || tor

Web browsers

Console

ELinks — Advanced and well-established feature-rich text mode web browser with mouse wheel scroll support (Links fork, barely supported since 2009).

http://elinks.or.cz/ || elinks

Links — Graphics and text mode web browser. Includes a console version similar to Lynx.

http://links.twibright.com/ || links

Lynx — Text browser for the World Wide Web.

http://lynx.invisible-island.net/ || lynx

w3m — Pager/text-based web browser. It has vim-like keybindings, and is able to display images.

http://w3m.sourceforge.net/ || w3m

Graphical

Gecko-based

Firefox spin-offs

Cliqz — Firefox-based privacy aware web browser.

https://cliqz.com/ || cliqz^AUR or cliqz-bin^AUR

Cyberfox — Fast and privacy oriented fork of Mozilla Firefox.

https://cyberfox.8pecxstudios.com/ || cyberfox-bin^AUR

Waterfox — Optimized fork of Mozilla Firefox, without data collection and allowing unsigned extensions and NPAPI plugins.

https://www.waterfoxproject.org/ || waterfox-bin^AUR

GNU IceCat — A customized build of Firefox ESR distributed by the GNU Project, stripped of non-free components and with additional privacy extensions. Release cycle may be delayed compared to Mozilla Firefox.

https://www.gnu.org/software/gnuzilla/ || icecat^AUR or icecat-bin^AUR

Blink-based

Privacy-focused chromium spin-offs

Inox — A privacy-focused patchset for Chromium, which disables Google services, proprietary features, prevents "calling home" and unhides all extensions.

https://github.com/gcarq/inox-patchset || inox^AUR or inox-bin^AUR

Iridium — A privacy-focused patchset for Chromium. See differences from Chromium.

https://iridiumbrowser.de/ || iridium^AUR

Ungoogled Chromium — Modifications to Google Chromium for removing Google integration and enhancing privacy, control, and transparency

https://github.com/Eloston/ungoogled-chromium || ungoogled-chromium^AUR

Proprietary chromium spin-offs

Google Chrome — Proprietary web browser developed by Google.

https://www.google.com/chrome/ || google-chrome^AUR

Opera — Proprietary browser developed by Opera Software.

https://opera.com || opera

Slimjet — Fast, smart and powerful proprietary browser based on Chromium.

http://www.slimjet.com/ || slimjet^AUR

Vivaldi — An advanced proprietary browser made with the power user in mind.

https://vivaldi.com/ || vivaldi^AUR

Yandex Browser — Proprietary browser that combines a minimal design with sophisticated technology to make the web faster, safer, and easier.

https://browser.yandex.com/ || yandex-browser-beta^AUR

Browsers based on qt5-webengine

Crusta — Blazingly fast full feature web browser with unique features.

http://crustabrowser.com/ || crusta^AUR

Dooble — Colorful Web browser.

https://textbrowser.github.io/dooble/ || dooble^AUR

Eric — QtWebEngine-based HTML browser, part of the eric6 development toolset, can be launched with the eric6_browser command.

https://eric-ide.python-projects.org/ || eric

Falkon — Web browser based on QtWebEngine, written in Qt framework.

https://falkon.org/ || falkon

Konqueror — Web browser based on Qt toolkit and Qt WebEngine (or KHTML layout engine), part of kdebase.

http://konqueror.org/ || konqueror

Liri Browser — A minimalistic material design web browser written for Liri.

https://github.com/lirios/browser || liri-browser-git^AUR

Qt WebBrowser — Browser for embedded devices developed using the capabilities of Qt and Qt WebEngine.

http://doc.qt.io/QtWebBrowser/ || qtwebbrowser^AUR

qutebrowser — A keyboard-driven, vim-like browser based on PyQt5 and QtWebEngine.

https://qutebrowser.org/ || qutebrowser

Browsers based on electron/muon

Beaker — Peer-to-peer web browser with tools to create and host websites. Based on the Electron platform.

https://github.com/beakerbrowser/beaker || beaker-browser^AUR

Brave — Web browser that blocks ads and trackers by default. Based on the Muon platform (fork of Electron).

https://www.brave.com/ || brave^AUR or brave-bin^AUR

Min — A smarter, faster web browser based on the Electron platform.

https://minbrowser.github.io/min/ || min

WebKit-based

Browsers based on webkit2gtk

Eolie — Simple web browser for GNOME.

https://wiki.gnome.org/Apps/Eolie || eolie

GNOME Web — Browser which uses the WebKitGTK+ rendering engine, part of gnome.

https://wiki.gnome.org/Apps/Web/ || epiphany

Lariza — A simple, experimental web browser using GTK+ 3, GLib and WebKit2GTK+.

https://www.uninformativ.de/git/lariza/ || lariza^AUR

Luakit — Fast, small, webkit based browser framework extensible by Lua.

https://luakit.github.io/ || luakit^AUR

Midori — Lightweight web browser based on GTK+ and WebKit.

http://midori-browser.org/ || midori

Next — Keyboard-oriented, infinitely extensible browser.

https://next.atlas.engineer/ || next-browser-git^AUR

Poseidon — Fast, minimal and lightweight browser, written in Python.

https://github.com/sidus-dev/poseidon || poseidon^AUR

surf — Lightweight WebKit-based browser, which follows the suckless ideology (basically, the browser itself is a single C source file).

https://surf.suckless.org/ || surf

Surfer — Simple keyboard based web browser, written in C.

https://github.com/nihilowy/surfer || surfer^AUR

Uzbl — Group of web interface tools which adhere to the Unix philosophy.

http://uzbl.org/ || uzbl-browser^AUR

Vimb — A Vim-like web browser that is inspired by Pentadactyl and Vimprobable.

https://fanglingsu.github.io/vimb/ || vimb^AUR

Browsers based on qt5-webkit

Eric — QtWebKit-based HTML browser, part of the eric6 development toolset, can be launched with the eric6_webbrowser command.

https://eric-ide.python-projects.org/ || eric

OSPKit — Webkit based html browser for printing.

http://osp.kitchen/tools/ospkit/ || ospkit-git^AUR

Otter Browser — Browser aiming to recreate classic Opera (12.x) UI using Qt5.

https://otter-browser.org/ || otter-browser^AUR

qutebrowser — A keyboard-driven, vim-like browser based on PyQt5 with QtWebKit as an available backend.

https://github.com/qutebrowser/qutebrowser || qutebrowser

smtube — Application that allows to browse, search and play YouTube videos.

https://www.smtube.org/ || smtube

WCGBrowser — A web browser for kiosk systems.

http://www.alandmoore.com/wcgbrowser/wcgbrowser.html || wcgbrowser-git^AUR

Other

Dillo — Small, fast graphical web browser built on FLTK. Uses its own layout engine.

http://dillo.org/ || dillo

Links — Graphics and text mode web browser. Includes a graphical X-window/framebuffer version with CSS, image rendering, pull-down menus. It can be launched with the xlinks -g command.

http://links.twibright.com/ || links

NetSurf — Featherweight browser written in C, notable for its slowly developing JavaScript support and fast rendering through its own layout engine.

http://netsurf-browser.org || netsurf

Pale Moon — A Firefox fork focussing on speed, with a pre-Firefox 29 interface. Uses Goanna layout engine, a fork of Gecko. Firefox add-ons may not be compatible. [1] Without support for newer Firefox features such as cache2, e10s, and OTMC.

http://www.palemoon.org/ || palemoon^AUR or palemoon-bin^AUR

Web servers

A web server serves HTML web pages and other files via HTTP to clients like web browsers. The major web servers can be interfaced with programs to serve dynamic content (web applications).

Apache — A high performance Unix-based HTTP server.

http://www.apache.org/dist/httpd || apache

Caddy — HTTP/2 web server with automatic HTTPS.

https://caddyserver.com/ || caddy^AUR

Hiawatha — Secure and advanced web server.

https://www.hiawatha-webserver.org/ || hiawatha

Lighttpd — A secure, fast, compliant and very flexible web-server.

http://www.lighttpd.net/ || lighttpd

nginx — Lightweight HTTP server and IMAP/POP3 proxy server.

https://nginx.org/ || nginx

sthttpd — Supported fork of the thttpd web server.

https://github.com/blueness/sthttpd || sthttpd

yaws — Web server/framework written in Erlang.

http://yaws.hyber.org/ || yaws

Static web servers

darkhttpd — A small and secure static web server, written in C, does not support HTTPS or Auth.

https://unix4lyfe.org/darkhttpd/ || darkhttpd

KatWeb — A lightweight static web server and reverse proxy, written in Go, designed for the modern web.

https://github.com/kittyhacker101/KatWeb || katweb^AUR

quark — An extremly small and simple http get-only web server. It only serves static pages on a single host.

http://tools.suckless.org/quark/ || quark-git^AUR

serve — Static file serving and directory listing.

https://github.com/zeit/serve || nodejs-serve^AUR

servy — A tiny little web server, single binary, written in Rust.

https://github.com/zethra/servy || servy^AUR

Webfs — Simple and instant web server for mostly static content.

http://linux.bytesex.org/misc/webfs.html || webfs

The Python standard library module http.server can also be used from the command-line.

Specialized web servers

Mongoose — Embedded web server library, supports WebSocket and MQTT.

https://github.com/cesanta/mongoose || mongoose^AUR

webhook — Small server for creating HTTP endpoints (hooks)

https://github.com/adnanh/webhook || webhook^AUR

Woof — An ad-hoc single file webserver; Web Offer One File.

http://www.home.unix-ag.org/simon/woof.html || woof^AUR

WSGI servers

Gunicorn — A Python WSGI HTTP Server for UNIX.

https://gunicorn.org/ || gunicorn, python2-gunicorn

uWSGI — A fast, self-healing and developer/sysadmin-friendly application container server written in C.

https://uwsgi-docs.readthedocs.io/ || uwsgi

Waitress — A WSGI server for Python 2 and 3.

https://github.com/Pylons/waitress || python-waitress, python2-waitress

Apache also supports WSGI with mod_wsgi.

Performance testing

http_load — A webserver performance testing tool, runs in a single process.

http://www.acme.com/software/http_load/ || http_load^AUR

httperf — Can generate various HTTP workloads, written in C.

https://github.com/httperf/httperf || httperf^AUR

vegeta — HTTP load testing tool, written in Go.

https://github.com/tsenart/vegeta || vegeta

Web Bench — Benchmarking tool, uses fork() for simulating multiple clients.

http://home.tiscali.cz/~cz210552/webbench.html || webbench^AUR

File sharing

Download managers

Console

aria2 — Lightweight download utility that supports HTTP, FTP, SFTP, BitTorrent and Metalink. It can run as a daemon controlled via a built-in JSON-RPC or XML-RPC interface.

https://aria2.github.io/ || aria2

Axel — Light command line download accelerator. Supports HTTP and FTP.

https://github.com/eribertomota/axel || axel

cURL — An URL retrieval utility and library. Supports HTTP, FTP and SFTP.

https://curl.haxx.se/ || curl

LFTP — Sophisticated file transfer program. Supports HTTP, FTP, SFTP, FISH, and BitTorrent.

http://lftp.yar.ru/ || lftp

mps-youtube — Terminal based YouTube jukebox with playlist management. Plays audio/video through mplayer/mpv.

https://github.com/mps-youtube/mps-youtube || mps-youtube

Plowshare — A set of command-line tools designed for managing file-sharing websites (aka Hosters).

https://github.com/mcrapet/plowshare || plowshare

RTMPDump — Download FLV videos through RTMP (Adobe's proprietary protocol for Flash video players)

http://rtmpdump.mplayerhq.hu/ || rtmpdump

snarf — Command-line URL retrieval tool. Supports HTTP and FTP.

http://www.xach.com/snarf/ || snarf

Streamlink — Launch streams from various streaming services in a custom video player or save them to a file.

https://streamlink.github.io/ || streamlink

Streamripper — Records and splits streaming mp3 into tracks.

http://streamripper.sourceforge.net/ || streamripper

You-Get — Download media contents (videos, audios, images) from the Web.

https://you-get.org/ || you-get

youtube-dl — Download videos from YouTube and many other web sites.

https://rg3.github.io/youtube-dl/ || youtube-dl

youtube-viewer — Command line utility for viewing YouTube videos.

https://github.com/trizen/youtube-viewer || youtube-viewer

Wget — A network utility to retrieve files from the Web. Supports HTTP and FTP.

https://www.gnu.org/software/wget/ || wget

Graphical

ClipGrab — Downloader and converter for YouTube, Vimeo and many other online video sites.

https://clipgrab.org/ || clipgrab

FatRat — Qt based download manager with support for HTTP, FTP, SFTP, BitTorrent and Metalink.

http://fatrat.dolezel.info/ || fatrat-git^AUR

FreeRapid — Java-based downloader that supports downloading from file-sharing services.

http://wordrider.net/freerapid/ || freerapid^AUR

FrostWire — Easy to use cloud downloader, BitTorrent client and media player.

http://www.frostwire.com/ || frostwire^AUR

gtk-youtube-viewer — GTK+ utility for viewing YouTube videos.

https://github.com/trizen/youtube-viewer || youtube-viewer + gtk2-perl + perl-file-sharedir

Gwget — Download manager for GNOME. Supports HTTP and FTP.

https://projects.gnome.org/gwget/ || gwget

Gydl — GUI wrapper around the already existing youtube-dl program to download content from sites like YouTube.

https://github.com/JannikHv/gydl || gydl-git^AUR

JDownloader — Java-based downloader for one-click hosting sites.

http://jdownloader.org/ || jdownloader2^AUR

KGet — Download manager for KDE. Supports HTTP, FTP, BitTorrent and Metalink. Part of kdenetwork.

https://www.kde.org/applications/internet/kget/ || kget

Persepolis — Graphical front-end for aria2 download manager with lots of features. Supports HTTP and FTP.

https://persepolisdm.github.io/ || persepolis^AUR

pyLoad — Downloader written in Python and designed to be extremely lightweight, easily extensible and fully manageable via web.

https://pyload.net/ || pyload^AUR^{[broken link: package not found]}

Steadyflow — Simple download manager for GNOME. Supports HTTP and FTP.

https://launchpad.net/steadyflow || steadyflow

Streamtuner2 — Internet radio station and video browser. It simply lists stations in categories from different directories and launches your preferred media apps for playback.

https://sourceforge.net/projects/streamtuner2/ || streamtuner2^AUR

uGet — GTK+ download manager featuring download classification and HTML import. Supports HTTP, FTP, BitTorrent, Metalink, YouTube and Mega.

http://ugetdm.com/ || uget

Xtreme Download Manager — Powerful tool to increase download speed up-to 500%. Supports HTTP and FTP. Video grabber works in a general way and is not limited to certain websites.

http://xdman.sourceforge.net/ || xdman^AUR

Cloud storage servers

Cozy — A personal cloud you can hack, host and delete.

https://cozy.io/ || cozy-stack

Nextcloud — A cloud server to store your files centrally on a hardware controlled by you.

https://nextcloud.com || nextcloud

Pydio — Mature open source web application for file sharing and synchronization.

https://pydio.com/ || pydio^AUR

Seafile — An online file storage and collaboration tool with advanced support for file syncing, privacy protection and teamwork.

https://www.seafile.com/ || seafile-server^AUR

Cloud synchronization clients

Tip:

Some synchronization and backup programs provide direct support for some cloud-storage services.
Some FUSE filesystems provide a way to mount cloud-storage as a filesystem. Google Drive can be accessed also by gvfs-google for GVFS-based applications (like Nautilus), and by kio-gdrive for KIO-based applications (like Dolphin).
See Disk encryption#Cloud-storage optimized to achieve zero-knowledge (client-side transparent encryption) storage on any third-party cloud service.

aws-cli — CLI for Amazon Web Services, including efficient file transfers to and from Amazon S3.

https://aws.amazon.com/cli/ || aws-cli

Backblaze B2 — Backblaze B2 open-source command-line client.

https://www.backblaze.com/b2/cloud-storage.html || backblaze-b2^AUR

CloudCross — Synchronize local files and folders with many cloud providers. Mail.ru Cloud, Yandex Disk, Google Drive, OneDrive and Dropbox support is available.

https://cloudcross.mastersoft24.ru/ || cloudcross^AUR

Cozy Drive — Desktop client for Cozy.

https://cozy-labs.github.io/cozy-desktop/ || cozy-desktop

drive — Tiny program to pull or push Google Drive files.

https://github.com/odeke-em/drive || drive-bin^AUR

DriveSync — Command line utility that synchronizes your Google Drive files with a local folder on your machine.

https://github.com/MStadlmeier/drivesync || drivesync^AUR

Dropbox — Proprietary desktop client for Dropbox.

https://www.dropbox.com/ || dropbox^AUR

gdrive — Command line utility for interacting with Google Drive.

https://github.com/prasmussen/gdrive || gdrive^AUR

Grive — Google Drive client with support for new Drive REST API and partial sync.

https://github.com/vitalif/grive2 || grive^AUR

hubiC — Proprietary synchronization client service and command line tools for hubiC.

https://hubic.com/en/downloads || hubic^AUR

Insync — Unofficial proprietary Google Drive desktop client.

https://www.insynchq.com/ || insync^AUR

Mail.ru Cloud — Proprietary client for Mail.ru Cloud storage service.

https://cloud.mail.ru/ || mailru-cloud^AUR

Mega Sync Client — Desktop client to sync files with Mega.

https://mega.nz/ || megasync^AUR

Megatools — Unofficial CLI for Mega.

https://megatools.megous.com/ || megatools^AUR

Nextcloud Client — Desktop client for Nextcloud.

https://nextcloud.com/ || nextcloud-client

Nutstore — Desktop client for Nutstore.

https://www.jianguoyun.com/ || nutstore^AUR

OneDrive — Unofficial CLI for OneDrive.

https://skilion.github.io/onedrive/ || onedrive^AUR

ownCloud Desktop Client — Desktop syncing client for ownCloud.

https://owncloud.com/client/ || owncloud-client

pCloud Drive — Proprietary desktop syncing client for pCloud. Based on the Electron platform.

https://www.pcloud.com/download-free-online-cloud-file-storage.html || pcloud-drive^AUR

PydioSync — Desktop client for Pydio.

https://pydio.com/ || pydio-sync^AUR

S3cmd — Unofficial CLI for Amazon S3.

http://s3tools.org/s3cmd || s3cmd

Seafile Client — GUI client for Seafile.

https://www.seafile.com/ || seafile-client^AUR

SpiderOak One — Proprietary client for SpiderOak One.

https://spideroak.com/ || spideroak-one^AUR

Tresorit — Proprietary desktop syncing client for Tresorit.

https://tresorit.com/download || tresorit^AUR

Yandex Disk — Proprietary CLI for Yandex Disk.

https://disk.yandex.ru/ || yandex-disk^AUR

FTP

FTP clients

FileZilla — Fast and reliable FTP, FTPS and SFTP client.

http://filezilla-project.org/ || filezilla

gFTP — Multithreaded FTP client for Linux.

http://gftp.seul.org/ || gftp

ftp — Simple ftp client provided by GNU Inetutils

https://www.gnu.org/software/inetutils/manual/inetutils.html#ftp-invocation || inetutils

ncftp — A set of free application programs implementing FTP.

http://www.ncftp.com/ || ncftp

tnftp — FTP client with several advanced features for NetBSD.

http://freecode.com/projects/tnftp || tnftp

Some file managers like Dolphin, GNOME Files and Thunar also provide FTP functionality.

FTP servers

bftpd — Small, easy-to-configure FTP server

http://bftpd.sourceforge.net/ || bftpd

chezdav — WebDAV server that allows to share a particular directory.

https://wiki.gnome.org/phodav || phodav

ftpd — Simple ftp server provided by GNU Inetutils

https://www.gnu.org/software/inetutils/manual/inetutils.html#ftpd-invocation || inetutils

proFTPd — A secure and configurable FTP server

http://www.proftpd.org/ || proftpd^AUR

Pure-FTPd — Free (BSD-licensed), secure, production-quality and standard-compliant FTP server.

http://www.pureftpd.org/project/pure-ftpd || pure-ftpd^AUR

SSH — SFTP is a network protocol that provides file access, file transfer, and file management over any reliable data stream.

https://www.openssh.com || openssh

vsftpd — Lightweight, stable and secure FTP server for UNIX-like systems.

https://security.appspot.com/vsftpd.html || vsftpd

BitTorrent clients

Some download managers are also able to connect to the BitTorrent network: Aria2, LFTP, FatRat, FrostWire, KGet, MLDonkey, uGet.

Console

btpd — The BitTorrent Protocol Daemon.

https://github.com/btpd/btpd || btpd^AUR

Ctorrent — CTorrent is a BitTorrent client implemented in C++ to be lightweight and quick.

http://www.rahul.net/dholmes/ctorrent/ || enhanced-ctorrent^AUR

peerflix — Streaming torrent client for node.js.

https://github.com/mafintosh/peerflix || peerflix^AUR

rTorrent — Simple and lightweight ncurses BitTorrent client. Requires libtorrent backend.

https://rakshasa.github.io/rtorrent/ || rtorrent

Transmission CLI — Simple and easy-to-use BitTorrent client with a daemon version and multiple front-ends. This package includes backend, daemon, command-line interface, and a Web UI interface.

https://transmissionbt.com/ || transmission-cli

Graphical

Deluge — User-friendly BitTorrent client written in PyGTK that can run as a daemon.

https://deluge-torrent.org/ || deluge

Fragments — Easy to use BitTorrent client which follows the GNOME HIG and includes well thought-out features.

https://gitlab.gnome.org/haecker-felix/Fragments || fragments

Ktorrent — Feature-rich BitTorrent client for KDE.

https://www.kde.org/applications/internet/ktorrent/ || ktorrent

Powder Player — Hybrid between a streaming BitTorrent client and a player. Based on the Electron platform.

https://powder.media/ || powder-player-bin^AUR

qBittorrent — Open source (GPLv2) BitTorrent client that strongly resembles µtorrent.

https://www.qbittorrent.org/ || qbittorrent or qbittorrent-nox

Torrential — Simple torrent client for elementary OS.

https://github.com/davidmhewitt/torrential || torrential^AUR

Transmission — Simple and easy-to-use BitTorrent client with a daemon version and multiple front-ends.

https://transmissionbt.com/ || GTK+: transmission-gtk, Qt: transmission-qt

Transmission Remote — GTK+ client for remote management of the Transmission BitTorrent client, using its HTTP RPC protocol.

https://github.com/transmission-remote-gtk/transmission-remote-gtk || transmission-remote-gtk

Tribler — 4th generation file sharing system BitTorrent client.

https://www.tribler.org || tribler

Vuze — Feature-rich BitTorrent client written in Java (formerly Azureus).

https://www.vuze.com/ || vuze^AUR

WebTorrent Desktop — Streaming BitTorrent application. Based on the Electron platform.

https://webtorrent.io/desktop/ || webtorrent-desktop^AUR

Other P2P networks

aMule — Well-known eDonkey/Kad client with a daemon version and GTK+, web, and CLI front-ends.

http://www.amule.org/ || amule

EiskaltDC++ — Direct Connect and ADC client.

https://github.com/eiskaltdcpp/eiskaltdcpp || GTK+: eiskaltdcpp-gtk^AUR, Qt: eiskaltdcpp-qt^AUR

gtk-gnutella — GTK+ server/client for the Gnutella peer-to-peer network.

http://gtk-gnutella.sourceforge.net/ || gtk-gnutella^AUR

KaMule — KDE graphical front-end for aMule.

http://kde-apps.org/content/show.php?content=150270 || kamule^AUR

LBRY — Browser and wallet for LBRY, the decentralized, user-controlled content marketplace. Based on the Electron platform.

https://lbry.io/ || lbry-app-bin^AUR

MLDonkey — Multi-protocol P2P client that supports HTTP, FTP, BitTorrent, Direct Connect, eDonkey and FastTrack.

http://mldonkey.sourceforge.net/ || mldonkey

ncdc — Modern and lightweight Direct Connect and ADC client with a friendly ncurses interface.

https://dev.yorhel.nl/ncdc || ncdc^AUR

Nicotine+ — A graphical client for the Soulseek P2P network.

https://www.nicotine-plus.org/ || nicotine+

Valknut — Direct Connect client (like DC++) with segmented downloading.

http://wxdcgui.sourceforge.net/ || valknut^AUR

Pastebin clients

Communication

Email clients

Console

aerc — Work in progress asynchronous email client.

https://github.com/SirCmpwn/aerc || aerc-git^AUR

alot — An experimental terminal MUA based on notmuch mail. It is written in python using the urwid toolkit.

https://github.com/pazz/alot || alot

Alpine — Fast, easy-to-use and Apache-licensed email client based on Pine.

http://www.washington.edu/alpine/ || alpine^AUR

S-nail — a mail processing system with a command syntax reminiscent of ed with lines replaced by messages. Provides the functionality of mailx.

https://www.sdaoden.eu/code.html#s-mailx || s-nail

mu/mu4e — Email indexer (mu) and client for emacs (mu4e). Xapian based for fast searches.

http://www.djcbsoftware.nl/code/mu/mu4e.html || mu

Mutt — Small but very powerful text-based mail client.

http://www.mutt.org/ || mutt

NeoMutt — Command line mail reader (or MUA). It's a fork of Mutt with added features.

https://www.neomutt.org/ || neomutt

nmh — A modular mail handling system.

http://www.nongnu.org/nmh/ || nmh^AUR

notmuch — A fast mail indexer built on top of xapian.

http://notmuchmail.org/ || notmuch

Sup — CLI mail client with very fast searching, tagging, threading and GMail like operation.

https://sup-heliotrope.github.io/ || sup^AUR

Wanderlust — Email client and news reader for Emacs.

http://www.gohome.org/wl/ || wanderlust

Graphical

Balsa — Simple and light email client for GNOME.

https://pawsa.fedorapeople.org/balsa/ || balsa

Claws Mail — Lightweight GTK-based email client and news reader.

https://www.claws-mail.org/ || claws-mail

email-securely-app — Unofficial desktop app for several end-to-end encrypted email providers (like ProtonMail, Tutanota). Based on the Electron platform.

https://github.com/vladimiry/email-securely-app || email-securely-app-bin^AUR

Evolution — Mature and feature-rich e-mail client that is part of the GNOME project. Part of gnome-extra.

https://wiki.gnome.org/Apps/Evolution || evolution

Geary — Simple desktop mail client built in Vala.

https://wiki.gnome.org/Apps/Geary || geary

Gnubiff — Mail notification program that checks for mail and displays headers when new mail has arrived.

http://gnubiff.sourceforge.net/ || gnubiff

Inboxer — Unofficial, free and open-source Google Inbox desktop app. Based on the Electron platform.

https://denysdovhan.com/inboxer/ || inboxer^AUR

Kmail — Mature and feature-rich email client. Part of kdepim.

https://www.kde.org/applications/internet/kmail/ || kmail

Kube — Modern communication and collaboration client built with QtQuick.

https://kube.kde.org/ || kube

Mailnag — Extensible mail notification daemon.

https://github.com/pulb/mailnag || mailnag

Mailspring — Proprietary fork of Nylas Mail by one of the original authors.

https://getmailspring.com/ || mailspring^AUR

Nylas Mail — Extensible desktop mail app. Based on the Electron platform.

https://www.nylas.com/nylas-mail/ || nylas-mail-lives-bin^AUR

openWMail — The missing desktop client for Gmail & Google Inbox. Based on the Electron platform.

https://openwmail.github.io/ || openwmail^AUR

QGmailNotifier — Portable Qt5 based GMail notifier.

https://github.com/eteran/qgmailnotifier || qgmailnotifier^AUR

Protonmail Desktop — Unofficial app that emulates a native client for the ProtonMail e-mail service. Based on the Electron platform.

http://protondesktop.com/ || protonmail-desktop^AUR

SeaMonkey Mail & Newsgroups — Email client included in the SeaMonkey suite.

http://www.seamonkey-project.org/ || seamonkey

Sylpheed — Lightweight and user-friendly GTK+ email client.

http://sylpheed.sraoss.jp/en/ || sylpheed

Thunderbird — Feature-rich email client from Mozilla written in GTK+.

http://www.mozilla.org/thunderbird/ || thunderbird

Trojitá — Qt IMAP email client. Only supports one IMAP account.

http://trojita.flaska.net/ || trojita

Web-based

Mailpile — A modern, fast web-mail client with user-friendly encryption and privacy features.

https://www.mailpile.is/ || mailpile^AUR

Nextcloud Mail — An email webapp for NextCloud.

https://github.com/nextcloud/mail || nextcloud-app-mail

Roundcubemail — Browser-based multilingual IMAP client webapp with a native application-like user interface.

http://roundcube.net/ || roundcubemail

SquirrelMail — Webmail for Nuts!

https://squirrelmail.org/ || squirrelmail^AUR

Mail servers

See Mail server.

Modoboa — A modular mail hosting and management platform, written in Python.

https://modoboa.org/ || modoboa^AUR

Mail retrieval agents

fdm — Program to fetch and deliver mail.

https://github.com/nicm/fdm || fdm

Fetchmail — A remote-mail retrieval utility.

http://www.fetchmail.info/ || fetchmail

getmail — A POP3 mail retriever with reliable Maildir and command delivery.

http://pyropus.ca/software/getmail/ || getmail

imapsync — IMAP synchronisation, sync, copy or migration tool

http://imapsync.lamiral.info/ || imapsync^AUR

isync — IMAP and MailDir mailbox synchronizer

http://isync.sourceforge.net/ || isync

mpop — A small, fast POP3 client suitable as a fetchmail replacement

https://marlam.de/mpop/ || mpop

OfflineIMAP — Synchronizes emails between two repositories.

http://www.offlineimap.org/ || offlineimap

Instant messaging clients

This section lists all client software with instant messaging support.

Multi-protocol clients

Note: All messengers, that support several networks by means of direct connections to them, belong to this section.

The number of networks supported by these clients is very large but they (like any multi-protocol clients) usually have very limited or no support for network-specific features.

Console

BarnOwl — Ncurses-based chat client with support for the Zephyr, XMPP, IRC and Twitter protocols.

http://barnowl.mit.edu/ || barnowl^AUR

BitlBee — IRC gateway to popular chat networks (XMPP, ICQ and Twitter).

http://bitlbee.org/ || bitlbee

CenterIM — Text mode menu- and window-driven IM interface. Supports most of widely used IM protocols, including ICQ, IRC, XMPP.

http://centerim.org/ || centerim^AUR

EKG2 — Ncurses based XMPP, Gadu-Gadu, ICQ and IRC client.

http://en.ekg2.org/^{[dead link 2018-09-21]} || ekg2^AUR

Finch — Ncurses-based chat client that uses libpurple and supports all its protocols (Bonjour, Gadu-Gadu, Groupwise, ICQ, IRC, SIMPLE, XMPP, Zephyr).

http://developer.pidgin.im/wiki/Using%20Finch || finch

Minbif — IRC gateway to IM networks that uses libpurple.

https://symlink.me/projects/minbif/wiki || minbif

Graphical

Empathy — GNOME instant messaging client with audio/video support using the Telepathy framework.

https://wiki.gnome.org/Apps/Empathy || empathy

Jitsi — Audio/video VoIP phone and instant messenger written in Java that supports protocols such as SIP, XMPP, ICQ, IRC and many other useful features.

https://jitsi.org/ || jitsi^AUR

Kopete — User-friendly IM supporting Bonjour, Gadu-Gadu, GroupWise, ICQ, XMPP.

https://userbase.kde.org/Kopete || kopete

KDE Telepathy — KDE instant messaging client using the Telepathy framework. Meant as a replacement for Kopete.

https://userbase.kde.org/Telepathy || telepathy-kde-meta

Pidgin — Multi-protocol instant messaging client with audio support that uses libpurple and supports all its protocols (Bonjour, Gadu-Gadu, Groupwise, ICQ, IRC, SIMPLE, XMPP, Zephyr).

http://pidgin.im/ || pidgin

qutIM — Simple and user-friendly IM supporting ICQ, XMPP, Mail.Ru, IRC and VKontakte messaging.

http://qutim.org/ || qutim^AUR

Smuxi — Cross-platform IRC client that also supports Twitter and XMPP.

https://smuxi.im/ || smuxi

Thunderbird — Feature-rich email client supports instant messaging and chat using IRC, XMPP and Twitter.

http://www.mozilla.org/thunderbird/ || thunderbird

Yate Client — Instant messenger and softphone supporting XMPP, SIP and H.323.

http://yateclient.yate.ro/ || yate

IRC clients

Console

BitchX — Console-based IRC client developed from the popular ircII.

http://www.bitchx.org/ || bitchx-git^AUR

ERC — Powerful, modular and extensible IRC client for Emacs.

https://savannah.gnu.org/projects/erc/ || included with emacs

ii — Featherweight IRC client, literally tail -f the conversation and echo back your replies to a file.

https://tools.suckless.org/ii/ || ii^AUR

Irssi — Highly-configurable ncurses-based IRC client.

https://irssi.org/ || irssi

pork — Programmable, ncurses-based IRC client that mostly looks and feels like ircII.

http://dev.ojnk.net/ || pork

ScrollZ — Advanced IRC client based on ircII.

http://www.scrollz.info/ || scrollz^AUR

sic — Extremely simple IRC client, similar to ii.

https://tools.suckless.org/sic/ || sic^AUR

WeeChat — Modular, lightweight ncurses-based IRC client.

https://weechat.org/ || weechat

Comparison

Name	Package	Written in	Extensible	SASL
BitchX	bitchx-git^AUR	C	?	?
ERC	emacs	ELisp	in ELisp	via script
ii	ii^AUR	C	stdin/stdout	No
Irssi	irssi	C	in Perl	Yes
pork	pork	C	in Perl	No
ScrollZ	scrollz^AUR	C	?	No
sic	sic^AUR	C	stdin/stdout	No
WeeChat	weechat	C	multiple languages	Yes

Graphical

HexChat — Fork of XChat for Linux and Windows.

https://hexchat.github.io/ || hexchat

Konversation — Qt-based IRC client for the KDE desktop.

https://konversation.kde.org/ || konversation

KVIrc — Qt-based IRC client featuring extensive themes support.

http://kvirc.net/ || kvirc-git^AUR

Loqui — GTK+ IRC client.

https://launchpad.net/loqui || loqui^AUR

LostIRC — Simple GTK+ IRC client with tab-autocompletion, multiple server support, logging and others.

http://lostirc.sourceforge.net || lostirc^AUR

Polari — Simple IRC client by the GNOME project.

https://wiki.gnome.org/Apps/Polari || polari

Quassel — Modern, cross-platform, distributed IRC client.

http://quassel-irc.org/ || quassel-monolithic

Srain — Modern, beautiful IRC client written in GTK+ 3.

https://srain.im/ || srain^AUR

XMPP clients

Console

Freetalk — Console-based XMPP client.

https://www.gnu.org/software/freetalk/ || freetalk^AUR

jabber.el — Minimal XMPP client for Emacs.

http://emacs-jabber.sourceforge.net/ || emacs-jabber^AUR

jp (Salut à Toi) — CLI frontend for Salut à Toi, multi-purpose XMPP client

https://salut-a-toi.org/ || sat-jp^AUR

MCabber — Small XMPP console client, includes features: SSL, PGP, MUC, OTR and UTF8.

https://mcabber.com/ || mcabber

Poezio — XMPP client with IRC feeling

https://poez.io/ || poezio^AUR

Primitivus (Salut à Toi) — Console frontend for Salut à Toi, multi-purpose XMPP client

https://salut-a-toi.org/ || sat-primitivus^AUR

Profanity — A console based XMPP client inspired by Irssi.

http://profanity.im/ || profanity

xmpp-client — A minimalist XMPP client with OTR support.

https://github.com/agl/xmpp-client || go-xmpp-client^AUR

Graphical

Cagou (Salut à Toi) — Desktop/mobiles frontend for Salut à Toi, multi-purpose XMPP client

https://salut-a-toi.org/ || sat-cagou-hg^AUR

Converse.js — Web-based XMPP chat client written in JavaScript.

https://conversejs.org/ || conversejs-git^AUR

Dino — A modern, easy to use XMPP client, with PGP and OMEMO support.

https://dino.im/ || dino-git^AUR

Gajim — XMPP client with audio support written in PyGTK.

https://gajim.org/ || gajim

Kadu — Qt-based XMPP and Gadu-Gadu client.

http://www.kadu.im/ || kadu^AUR

Libervia (Salut à Toi) — Web frontend for Salut à Toi, multi-purpose XMPP client

https://salut-a-toi.org/ || sat-libervia-hg^AUR

Nextcloud JavaScript XMPP Client — Chat app for Nextcloud with XMPP, end-to-end encryption, video calls, file transfer & group chat.

https://github.com/nextcloud/jsxc.nextcloud || nextcloud-app-jsxc^AUR

Psi — Qt-based XMPP client.

https://psi-im.org/ || psi or psi-nowebengine

Spark — Cross-platform real-time XMPP collaboration client optimized for business and organizations.

https://www.igniterealtime.org/projects/spark/ || spark^AUR

Swift — XMPP client written in C++ with Qt and Swiften.

https://swift.im/ || swift-im^AUR

Tkabber — Easy to hack feature-rich XMPP client by the author of the ejabberd XMPP server.

http://tkabber.jabber.ru/ || tkabber^AUR

Vacuum IM — Full-featured crossplatform XMPP client.

https://github.com/Vacuum-IM/vacuum-im || vacuum-im^AUR

SIP clients

Blink — State of the art, easy to use SIP client.

http://icanblink.com/ || blink^AUR

Ekiga — VoIP and video conferencing application with full SIP and H.323 support (formerly known as GNOME Meeting).

http://www.ekiga.org/ || ekiga

Linphone — VoIP phone application (SIP client) for communicating freely with people over the internet, with voice, video, and text instant messaging.

http://www.linphone.org/ || linphone^AUR

Ring — SIP-compatible softphone and instant messenger for the decentralized Ring network. Formerly known as SFLphone.

https://ring.cx/ || ring-gnome

Ring KDE — SIP-compatible softphone and instant messenger for the decentralized Ring network. KDE client.

https://cgit.kde.org/ring-kde.git/ || ring-kde

Twinkle — Qt softphone for VoIP and IM communication using SIP.

http://twinkle.dolezel.info/ || twinkle-qt5^AUR

Matrix clients

Tox clients

Serverless (decentralized) clients

BeeBEEP — Secure LAN Messenger.

http://beebeep.sourceforge.net/ || beebeep^AUR

Bit Chat — Secure, peer-to-peer instant messenger.

https://bitchat.im/ || bitchat^AUR

Bitmessage — Decentralized and trustless P2P communications protocol for sending encrypted messages to another person or to many subscribers.

https://bitmessage.org/ || pybitmessage^AUR

iptux — LAN communication software, compatible with IP Messenger.

https://github.com/iptux-src/iptux || iptux^AUR

LAN Messenger — P2P chat application for intranet communication and does not require a server. A variety of handy features are supported including notifications, personal and group messaging with encryption, file transfer and message logging.

https://lanmessenger.github.io/ || lmc^AUR

Patchwork — Decentralized messaging and sharing app built on top of Secure Scuttlebutt (SSB). Based on the Electron platform.

https://github.com/ssbc/patchwork || ssb-patchwork^AUR

RetroShare — Serverless encrypted instant messenger with filesharing, chatgroups, mail.

http://retroshare.net/ || retroshare^AUR

Ricochet — Anonymous peer-to-peer instant messaging system built on Tor hidden services.

https://ricochet.im/ || ricochet^AUR

Other IM clients

Caprine — Unofficial Facebook Messenger app. Based on the Electron platform.

https://github.com/sindresorhus/caprine || caprine

Cryptocat — Free software with a simple mission: everyone should be able to chat with their friends in privacy. Based on the Electron platform.

https://crypto.cat/ || cryptocat^AUR

Discord — Proprietary all-in-one voice and text chat application for gamers that’s free and works on both your desktop and phone. Before installing, one should be aware of the privacy implications. Based on the Electron platform.

https://discordapp.com/ || discord^AUR

Esmska — Program for sending SMS over the Internet.

https://github.com/kparal/esmska || esmska

Gitter — Communication product for communities and teams on GitHub.

https://gitter.im/ || gitter^AUR

Hangups — Third-party instant messaging client for Google Hangouts.

https://github.com/tdryer/hangups || hangups^AUR

ICQ — Official ICQ client for Linux.

https://icq.com/linux/ || icqdesktop-bin^AUR

Licq — Instant messaging client for UNIX supporting ICQ.

http://licq.org/ || licq

Matterhorn — Console client for the Mattermost chat system.

https://github.com/matterhorn-chat/matterhorn || matterhorn^AUR

Mattermost Desktop — Desktop application for Mattermost. Based on the Electron platform.

https://github.com/mattermost/desktop || mattermost-desktop^AUR

Mumble — Voice chat application similar to TeamSpeak.

http://mumble.sourceforge.net/ || mumble

QHangups — Alternative client for Google Hangouts written in PyQt.

https://github.com/xmikos/qhangups || qhangups^AUR

Rocket.Chat Desktop — Desktop application for Rocket.Chat. Based on the Electron platform.

https://github.com/RocketChat/Rocket.Chat.Electron || rocketchat-desktop^AUR

Signal — Signal Private Messenger for the Desktop. Based on the Electron platform.

https://github.com/signalapp/Signal-Desktop || signal^AUR

Skype — Popular but proprietary application for voice and video communication. Based on the Electron platform.

https://www.skype.com/ || skypeforlinux-stable-bin^AUR

Slack — Proprietary Slack client for desktop. Based on the Electron platform.

https://slack.com/downloads/linux || slack-desktop^AUR

TeamSpeak — Proprietary VoIP application with gamers as its target audience.

http://www.teamspeak.com/ || teamspeak3

Telegram Desktop — Official Telegram desktop client.

https://desktop.telegram.org/ || telegram-desktop

Viber — Proprietary cross-platform IM and VoIP software.

https://www.viber.com/products/linux/ || viber^AUR

Wire — Modern, private messenger. Based on the Electron platform.

https://wire.com/ || wire-desktop^AUR

YakYak — Unofficial desktop client for Google Hangouts. Based on the Electron platform.

https://github.com/yakyak/yakyak || yakyak^AUR

Zoom — Proprietary video conferencing, online meetings and group messaging application.

https://zoom.us/ || zoom^AUR

Zulip — Desktop client for Zulip group chat. Based on the Electron platform.

https://zulipchat.com/apps/linux || zulip-electron-bin^AUR

Instant messaging servers

IRC servers

InspIRCd — A stable, modern and lightweight IRC daemon.

https://www.inspircd.org/ || inspircd^AUR

IRCD-Hybrid — A lightweight, high-performance internet relay chat daemon.

http://www.ircd-hybrid.org/ || ircd-hybrid^AUR

miniircd — A small and configuration free IRC server, suitable for private use.

https://github.com/jrosdahl/miniircd || miniircd-git^AUR

UnrealIRCd — Open Source IRC Server.

https://www.unrealircd.org/ || unrealircd

XMPP servers

Prosody — An XMPP server written in the Lua programming language. Prosody is designed to be lightweight and highly extensible. It is licensed under a permissive MIT license.

http://prosody.im/ || prosody

Ejabberd — Robust, scalable and extensible XMPP Server written in Erlang

https://www.ejabberd.im/ || ejabberd

Jabberd2 — An XMPP server written in the C language and licensed under the GNU General Public License. It was inspired by jabberd14.

http://jabberd2.org || jabberd2^AUR

Openfire — An XMPP IM multiplatform server written in Java

http://www.igniterealtime.org/projects/openfire/ || openfire

SIP servers

Asterisk — A complete PBX solution.

https://www.asterisk.org/ || asterisk^AUR

Kamailio — Rock solid SIP server.

https://www.kamailio.org/ || kamailio^AUR

openSIPS — SIP proxy/server for voice, video, IM, presence and any other SIP extensions.

https://opensips.org/ || opensips

Repro — An open-source, free SIP server.

https://www.resiprocate.org/About_Repro || repro^AUR

Yate — Advanced, mature, flexible telephony server that is used for VoIP and fixed networks, and for traditional mobile operators and MVNOs.

http://yate.ro/ || yate

Other IM servers

Mattermost — Open source private cloud server, Slack-alternative.

https://github.com/mattermost/mattermost-server || mattermost^AUR

Murmur — The voice chat application server for Mumble.

http://mumble.sourceforge.net/ || murmur

Nextcloud Talk — Video- and audio-conferencing app for Nextcloud.

https://github.com/nextcloud/spreed || nextcloud-app-spreed

Rocket.Chat — Web chat server, developed in JavaScript, using the Meteor fullstack framework.

https://github.com/RocketChat/Rocket.Chat || rocketchat-server^AUR

Spreed WebRTC — WebRTC audio/video call and conferencing server.

https://github.com/strukturag/spreed-webrtc || spreed-webrtc-server^AUR

Synapse — Reference homeserver for the Matrix protocol.

https://github.com/matrix-org/synapse || matrix-synapse

TeamSpeak Server — Proprietary VoIP conference server.

https://teamspeak.com/ || teamspeak3-server

uMurmur — Minimalistic Mumble server.

http://umurmur.net/ || umurmur

Collaborative software

Citadel/UX — Includes an email & mailing list server, instant messaging, address books, calendar/scheduling, bulletin boards, and wiki and blog engines.

http://www.citadel.org/ || webcit^AUR

Kolab — Kolab Groupware solution consisting of a server and various clients.

https://kolab.org/ || kolab^AUR

Open-xchange — A groupware solution providing mail facilities, calendaring, shared contacts and Google-Docs-like text editing

http://www.ox.io/ || open-xchange^AUR

SOGo — Groupware server built around OpenGroupware.org (OGo) and the SOPE application server.

https://sogo.nu/ || sogo^AUR

News, RSS, and blogs

News aggregators

RSS/Atom aggregators. Some email clients are also able to act as news aggregator: Claws Mail RSSyl plugin, Evolution RSS plugin, SeaMonkey Mail & Newsgroups, Thunderbird.

Console

Canto — Ncurses RSS aggregator.

http://codezen.org/canto/ || canto-curses^AUR

Gnus — Email, NNTP and RSS client for Emacs.

http://gnus.org/ || emacs

Newsboat — Ncurses RSS aggregator with layout and keybinding similar to the Mutt email client.

http://newsboat.org || newsboat

Rawdog — "RSS Aggregator Without Delusions Of Grandeur" that parses RSS/CDF/Atom feeds into a static HTML page of articles in chronological order.

http://offog.org/code/rawdog.html || rawdog

Snownews — Text mode RSS news reader.

https://github.com/kouya/snownews || snownews^AUR

Graphical

Akregator — News aggregator for KDE, part of kdepim.

https://www.kde.org/applications/internet/akregator/ || akregator

Alduin — RSS, Atom and JSON feed aggregator. Based on the Electron platform.

https://alduinapp.github.io/ || alduin^AUR

FeedReader — Modern desktop application designed to complement existing web-based RSS accounts.

http://jangernert.github.io/FeedReader/ || feedreader

Liferea — GTK+ news aggregator for online news feeds and weblogs.

https://lzone.de/liferea/ || liferea

Nextcloud News — RSS/Atom feed reader for Nextcloud.

https://github.com/nextcloud/news || nextcloud-app-news^AUR

QuiteRSS — RSS/Atom feed reader written on Qt/С++.

http://quiterss.org/ || quiterss

RSS Guard — Very tiny RSS and ATOM news reader developed using Qt framework.

https://github.com/martinrotter/rssguard || rssguard or rssguard-nowebengine

selfoss — The new multipurpose RSS reader, live stream, mashup, aggregation web application.

https://selfoss.aditu.de/ || selfoss^AUR

Tickr — GTK-based RSS Reader that displays feeds as a smooth scrolling line on your desktop, as known from TV stations.

https://www.open-tickr.net/ || tickr^AUR

Tiny Tiny RSS — Web-based news feed (RSS/Atom) aggregator.

https://tt-rss.org/ || tt-rss

Podcast clients

Some media players are also able to act as podcast client: Amarok, Banshee, Cantata, Clementine, Goggles Music Manager, Rhythmbox, VLC media player.

Console

castget — Simple, command-line RSS enclosure downloader, primarily intended for automatic, unattended downloading of podcasts.

http://castget.johndal.com/ || castget

gpo — Text mode interface of gPodder.

http://gpodder.org/ || gpodder

Greg — A command-line podcast aggregator.

https://github.com/manolomartinez/greg || greg-git^AUR

Marrie — A simple podcast client that runs on the Command Line Interface.

https://github.com/rafaelmartins/marrie/ || marrie-git^AUR

pcd — A minimal podcast client written in go

https://github.com/kvannotten/pcd || pcd^AUR

Graphical

CPod — Simple, beautiful podcast app. Based on the Electron platform.

https://github.com/z-------------/cumulonimbus || cpod^AUR

GNOME Podcasts — Podcast client for the GNOME Desktop written in Rust.

https://gitlab.gnome.org/World/podcasts || gnome-podcasts

gPodder — Podcast client and media aggregator (GTK+ interface).

http://gpodder.org/ || gpodder

Vocal — Simple podcast client for the Modern Desktop (GTK+).

http://vocalproject.net/ || vocal

Usenet newsreaders

Some email clients are also able to act as Usenet newsreader: Claws Mail, Evolution, NeoMutt, SeaMonkey Mail & Newsgroups, Sylpheed, Thunderbird.

Console

nn — Alternative more user-friendly (curses-based) Usenet newsreader for UNIX.

http://www.nndev.org/ || nn^AUR

slrn — Text-based news client.

http://www.slrn.org/ || slrn^AUR

tin — A cross-platform threaded NNTP and spool based UseNet newsreader.

http://tin.org/ || tin^AUR

trn — A text-based Threaded Usenet newsreader.

http://trn.sourceforge.net/ || trn^AUR

Graphical

LottaNZB — A SABnzbd (Usenet binary downloader) GUI front-end written in PyGTK

https://launchpad.net/lottanzb/ || lottanzb^AUR

NZBGet — Usenet binary downloader for .nzb files with web and CLI interface.

https://nzbget.net/ || nzbget

Pan — GTK+ Usenet newsreader that's good at both text and binaries.

http://pan.rebelbase.com/ || pan

SABnzbd — An open-source binary newsreader webapp written in Python.

https://sabnzbd.org/ || sabnzbd^AUR

XRN — Usenet newsreader for X Window System.

http://www.mit.edu/people/jik/software/xrn.html || xrn^AUR

Blog engines

Note: Content managers, social networks, and blog publishers overlap in many functions.

Diaspora — A distributed privacy aware social network.

https://diasporafoundation.org || diaspora-mysql^AUR or diaspora-postgresql^AUR

Drupal — A PHP-based content management platform.

http://www.drupal.org/ || drupal

Ghost — Blogging platform written in JavaScript and distributed under the MIT License, designed to simplify the process of online publishing for individual bloggers as well as online publications.

https://ghost.org/ || ghost^AUR^{[broken link: package not found]}

Jekyll — A static blog engine, written in Ruby, which supports Markdown, textile and other formats.

http://jekyllrb.com/ || jekyll^AUR

Joomla — A php Content Management System (CMS) which enables you to build websites and powerful online applications.

http://www.joomla.org/ || joomla^AUR

Nanoblogger — A small weblog engine written in Bash for the command line. It uses common UNIX tools such as cat, grep, and sed to create static HTML content. It is not mantained anymore.

http://nanoblogger.sourceforge.net/ || nanoblogger^AUR