Free Software for Web
Threema
Threema is a messenger application that puts security and privacy first. The application is designed to generate as little user data as possible. The service is fully GDPR-compliant and the company has its own servers hosted in Switzerland. With Threema you can keep in touch with friends, family and co-workers while enjoying privacy and rest assured that you personal data is not commoditized.
MoinMoin
MoinMoin is a free and open-source, Python-based WikiEngine thate features an extensible core. With MoinMoin you can create self-hosted wikies and informational resource sites. MoinMoin's extensible core allow for plugins to be installed to further extend the capability of the software. Allowing you to install auth plugins for custom authentication, filter plugins for indexing file attachments of different mimetypes, parsers for new input formats formatters to produce different output formats than HTML, themes xmlrpc and CMS solutions.
Kweeper
Kweeper is a is a social curation tool that enables its users to gather and organize text quotes, images, videos, and audios in a visual way. With Kweeper, you and your team can remember the imporant things and gather your thoughts collectivly.
NodeBB
NodeBB is an open source forum software powered by Node.js and supports either Redis, MongoDB, or a PostgreSQL database. With NodeBB you can self-host communities with instant interactions and real-time notifications powered with the help of web sockets. Thousands of organizations have also stared their communites with NodeBB SaaS product, free from self-service and maintinance.
Audius Music
Audius is a music streaming and sharing platform that puts power back into the hands of content creators.
ZeroNet
ZeroNet is a decentralized web-like network of peer-to-peer users. It's basically BitTorrent thrown at the problem of web hosting and networking. With ZeroNet you can create open, free and uncensorable websites using cryptograic features of Bitcoin. ZeroNet uses .bit domain names and a decentralized domain regestry using Namecoin.
Search Encrypt
Search Encrypt is a privacy focused search engine that uses local encryption to ensure that your identifiable information cannot be tracked. Search Encrypt gets its results from a network of search partners, providing well-rounded results that aren’t personalized to your history. After 15 minutes of inactivity with Search Encrypt, the search engine automatically erases your search history, allowing you to not worry about privacy concerns when other people access the search engine from the same computer.
Bunklist
Bunklist is a web application that provides collections of website bookmarks saved by users. With Bunklist you can collect and discover useful websites through the use of lists and topics. Bunklist is the perfect place to to create, discuss, and discover list of inspiring, fun, useful, and informative websites.
Trello
With Trello you can orginaize anything with anyone. Trello is a web-based kanban list-making and collaboration tool. Over 35 million registered users use Trello to organize their project across teams, at work, at home or elsewhere.
Media.net
With Media.net you can maximize your revenue as a publisher. It's a contextual advertising network that allow you to tap into one of the largest pools of advertisers in the world. Based on Media.net proprietary ad format, contextual ads open up advertising search budgets worth billions of dollars. The format uses filters to pair advertisers with user intent via relevant search keywords resulting in quality targeted contextual ads that yields higher revenue.