Free Software for Linux
phpMyAdmin
With phpMyAdmin you can manage MySQL and MariaDB via a user interface. phpMyAdmin is free and open-source portable web application written primarily in PHP. It supports wide range of native MySQL and MariaDB database operations including maniging tables, columns, relations, indexes, users, permissions and more.
YaCy
YaCy is a distributed search engine using peer-to-peer technology. The search engine is provided as a native software that has to be downloaded to your computer. It is avalible for macOS, Linux and Windows and is released completley free and open-source.
DOSBox
DOSBox is a free and open-source emulator of an Intel x86 personal computer designed for the purpose of running software created for disk operating systems on IBM PC compatibles, primarily DOS video games.
Keybase
With Keybase you can communicate with friends and co-worker and store your group’s photos, videos, and documents with end-to-end encryption. Keybase is a free and open-source security app for mobile phones and computers.
openSUSE
The makers' choice for sysadmins, developers and desktop users. openSUSE, formerly SUSE Linux and SuSE Linux Professional, is a free and open-source Linux distribution. openSUSE is openly developed by SUSE Software Solutions Germany GmbH and the community.
Bluefish Editor
The Bluefish Editor is a free and powerful editor that is used by programmers and web developers. Bluefish supports a handfull of programming and markup languages including HTML, XHTML, CSS, XML, PHP, C, C++, JavaScript, Java, Go, Vala, Ada, D, SQL, Perl, ColdFusion, JSP, Python and Ruby. The software is developed openly and is released for free under the GNU GPL license.
postmarketOS
PostmarketOS is a touch-optimized, mobile operating system built on-top of Alpine Linux. It provides it's own packages and comes with a small footprint and can easily be installed on most smartphones. However, PostmarketOS is in early development and leads the way for mobile Linux operating systems and will most likely not operate like the more popular mobile OS on the market today.
Deta
Deta is a cloud platform that provides serverless computing solutions for free. Deta includes four main components that make hosting applications easier than ever. Deta Micros a serverless function platform that can be used hosting Node.js and Python-based services. Deta Base, a simple yet performant key/value database that can be used for storing and querying data. Deta Drive, an to use cloud storage solution that includes 10GB of free storage, and finally Deta Payments a payment solution that quickly integrates with your application so that you can start generating revenue from your hard work.
Bitmessage
Bitmessage is a decentralized, encrypted, peer-to-peer, trustless communications protocol. With Bitmessage you can send encrypted messages to a person, or to multiple subscribers.
GNU Emacs
GNU Emacs is an extensible and customizable, free and open source text editor. It was created by GNU Project founder Richard Stallman and has been dubbed "the most powerful text editor available today". At the core of GNU Emacs is an interpreter for Emacs Lisp, a dialect of the Lisp programming language with extensions to support text editing. Which allows users to extend and customize GNU Emacs to their heart's content.