Social Software

Pinboard is a personal archive for things you find online and don't want to forget.

Real-time chat & texting for business teams. Free on Mac, Windows, Web, Android, and iPhone

Unison is for business: a fast messenger and group collaboration tool that lets teams work much...

Chat everywhere! IM+ is the most widely used mobile IM app! Connect all-in-one to MSN, Yahoo!, Goo...

Disqus offers the best add-on tools for site owners to power discussions, increase engagement, and...

Free, open source and cross platform messaging and emailing app that combines common web...

LINE is a Japanese proprietary application for instant messaging on smartphones and PCs.

Discourse is an open source discussion platform built for the next decade of the Internet.

Gather feedback and support customers with effective self-service solution

Truly gamer friendly, DRM-free online gaming platform.

RetroShare is a open source cross-platform, private and secure decentralized communication system.

Pinegrow is a desktop app that lets you build responsive websites faster with live multi-page...

Fast, clean and unique feed reader

Tweetbot is an award-winning Twitter client for iOS and the Mac.

Tiki Wiki CMS Groupware is a full-featured, web-based, multilingual (40+ languages), tightly...

Stay in touch with your friends and family while sharing favorite photos using one of the most...

Follow your favorite blogs and discover new ones.

Gwibber is an open source microblogging client for GNOME developed with Python and GTK.

Uptime, Service Health and Performance Monitoring

"All-in-one" team collaboration & project management app.

DISCONTINUED. READ BELOW.

Ekiga (formely known as GnomeMeeting) is an open source VoIP and video conferencing application for...

Echofon is the fastest, most powerful Twitter app for iPhone, iPod Touch and iPad and the ONLY free...

PixelFed is a federated image sharing platform, powered by the ActivityPub protocol.

Irssi is a terminal based IRC client for UNIX systems.

Voat is a censorship-free community platform based in Switzerland where content is submitted...

OpenSource note-taking & archiving alternative to Evernote, Microsoft OneNote & Google Keep

Website Builder

Franz is a free messaging app / former Emperor of Austria and combines chat & messaging...

Volafile.org offers real time filesharing and fast downloads without delays or annoying countdowns.