Free Software for Linux
Grafana
As the world's most popular free and open source technology for visualizing metrics, Graphana makes it easy to create a interactive dashboard for data monitoring. Grafana's designed from the ground-up for analyzing and visualizing metrics such as system CPU, memory, disk and I/O utilization. All metrics provided by connected data sources and applications can be visualized and monitored though charts, graphs, and alerts. You can also extend the core functionality of Graphana through a built-in plug-in system. Popular companies and applications like Uber, Robinhood, Nubank and others trust Graphana and its real-time visualization and monitoring capabilities.
Akira UX
Akira UX is a free an open-source graphic design software built with Vala and GTK. The application offers a fast approach to UI and UX Design, mainly targeting web designers and graphic designers. Akira UX is available for all major Linux distributions, and through the elementary OS AppCenter.
Kodi
Kodi is a free and open-source media and entertainment center. It can be used on a single machine or as a part of your local network. The media center supports a wide range of remote controls, combined with a beautiful and highly skinnable interface. Kodi also supports Internet Protocol Television (IPTV) which allows it to be used on your TV in the comfort of your living room.
Cryptomator
Cryptomator is a simple tool makes your cloud storage trustworthy. With Cryptomator, you can encrypt your data quickly and save it to your favorite cloud services provider. The tool is released as free and open source software under the MIT License. Allowing you and other developers to verify and build upon the source code, to further strengthen and improve the application.
Caddy
Caddy is a powerful, enterprise-ready, open-source web server written in Go. The Caddy provides automatic SSL/TLS cretificates so that your application always is served over HTTPS.
Lutris
Lutris is a free and open-source, Linux-based operating system developed for gaming. With Lutris you can manage your game library, and install and launch games with no setup. Lutris is integrated with GOG, Steam, Battle.net, Origin, Uplay and many other games stores. The operating system is released under the GNU General Public License and is community built, anyone is free to contribute and use the platform.
XnView MP
A versatile and powerful photo viewer, image management, image resize developed by XnSoft. The XnView MP image viewer is a free software for macOS, Linux and Windows. The software consist of a photo viewer and a photo editor. With the photo viewer you can view browse photos in thumbnail, fullscreen and filmstrip view and compare images and manage EXIF, IPTC, XMP meta data. The photo editor can be used to resize, rotate and crop photos or adjust brightness, contrast and color while applying filters and effects to images.
Shotwell
Shotwell is a free and open-source image manager designed to orginize personal photos on Linux and the GNOME desktop environment.
Apache HTTP Server
A free and open-source cross-platform web server developed by the Apache Software Foundation. The Apache HTTP Server is a continuous development effort to build an open HTTP server for modern operating systems. The web server is used by organizations, businesses and hobbyists alike, to power web-based applications.
OpenTSDB
OpenTSDB is a free and open-source distributed, scalable Time Series Database written on top of Apache HBase. OpenTSDB was designed to address a common need: store, index and serve metrics collected from computer systems such as network gear, operating systems and applications, at a large scale, and make this data easily accessible and graphable. OpenTSDB allows you to collect thousands of metrics from tens of thousands of hosts and applications, at a high rate and will never delete or downsample data and can easily store hundreds of billions of data points.