Free Software for Linux
Komodo Edit
Komodo Edit is a free and open source text editor designed for dynamic programming languages, inclduing PHP, Python, Ruby, JavaScript, Perl, Tcl, XML, HTML5, CSS and more. With Komodo Edit you can enjoy a development process supported by syntax coloring, folding, background syntax checking, and excellent auto-complete and code intellisense. Komodo Edit is developed and released as open source software by ActiveState, in an effort to provide an more accessible version of their commercial software Komodo IDE.
wikidPad
wikidPad is a Wiki-like note taking application for storing your thoughts, ideas, todo lists, contacts, or anything else you can think of to write down. What makes wikidPad different from other notepad applications is the ease with which you can cross-link your information. Links in a wiki are created by typing in WikiWords. wikidPad allows you to get a better undestanding of your research and documentation and allow you to better explore and rediscover your knowledge.
gedit
gedit is a free and open source IDE native to the GNOME desktop environment. With gedit you can work with a wide range of programming languages including C, C++, Java, JavaScript, HTML, XML, Python and Perl. The IDE automatically detect programming language and provide code color highlighting accordingly. It also include features like search and replace, spell checking, printing and support for most filte types.
Nextcloud
With Nextcloud, users can host their own secure cloud solution for file storage, collaboration and communication for enterprise or personal purposes. Nextcloud gives you full control over your own data and where and how you host it. The software can be hosted on-premise or on any VPS or cloud instance provided by third-party web hosts. If you value privacy and security, Nextcloud might be the right choice for you. Nextcloud is both free and open source and developed in an open, transparent and trustworthy manner.
nomacs
nomacs is a free, open source, cross-platform image viewer. With nomacs you can easily view and manage all common file formats including jpg, png, tif, bmp, raw and many more. The sleek user interface provided by nomacs features a semi-transparent widgets that display additional information such as thumbnails, metadata or histogram.
Phoenix OS
Phoenix OS is an operating system specifcally designed to bring Android gaming to the PC. The OS is based on Android 7.1 and is developed and released free and open-source. With Phoenix OS you can play your Android games on a big screen, with mouse and keyboard support thanks to Octopus keymapping engine and Game Assistant, offering a powerful fundamental keymapping.
Debian
Debian is a free and open-source operating system and GNU/Linux distribution that is openly developed by the community-supported Debian Project. The distribution was first released in 1993 and today it is the base of many other Linux-based distribution such as the popular Ubuntu. The project includes over 59000 packages, precompiled software bundled up for easy installation on your machine.
Lubuntu
Lubuntu is a free and light-weight Linux desktop distribution developed by the Lubuntu Community. The distribution combines the stability of Ubuntu with the faster LXQt desktop to provide a snappy operating system for low-spec computers. Lubuntu has been in active development since 2011 where it was first introduced with the LXDE desktop environment.
pgAdmin
The software pgAdmin is the most popular free and open-source administration panel for PostgreSQL. With pgAdmin developers can manage their database and also use it as a tool that is part of the development process. The software is released under the PostgreSQL/Artistic licence and can be used on macOS, Linux, Unix and Windows to manage PostgreSQL 9.2 and above.
KDevelop
KDevelop is a fully featured, plugin extensible IDE for C/C++ and many other programming languages. Supported platforms include Linux, Solaris, FreeBSD, macOS and other Unix flavors as well as Microsoft Windows. It is based on KDevelop Platform, the KDE Frameworks and the Qt libraries. KDevelop is a free and open source software under development by KDE since 1998.