Open Source Software for Windows
SQLiteStudio
SQLiteStudio is a SQLite database manager with an intuetive user interface. It provides a pretty-print code formatter, marks syntax errors. Allowing you to easily view, query and manage data in your SQLite database. SQLiteStudio is released as free and open source software under the GNU General Public License.
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.
Avidemux
Avidemux is a free and open-source, non-linear video editor designed for simple cutting, filtering and encoding tasks. It supports many file types, including AVI, DVD compatible MPEG files, MP4 and ASF, using a variety of codecs. The goal of Avidemux, according to the developers is to create a simple tool for simple video processing tasks and to allow users to do elementary things in a very straightforward way.
Insomnia
With Insomnia you can design, debug and deploy APIs. Insomnia is free API design platform and REST Client developed for macOS, Linux and Window. The application makes it easy to create and group requests, specify environment variables, authentication and generate code snippets. You can also get all the details on responses. View the whole request timeline, status codes, body, headers, cookies and much more. The software also makes it easy to orginize your projects with workspaces, folders, environments, drag-and-drop requests, and easily import and export your data. Insomnia integrates with API gateways such as the Kong API Gateway, and Kong for Kubernetes. While Insomnia comes with a free-forever license, the software provides premium monthly subscriptions for E2EE data sync and advanced collaboration features.
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.
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.
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.
VeraCrypt
VeraCrypt is free and open-source disk encryption software. The software is a fork of TrueCrypt 7.1a with enehanced security to the algorithms used for system and partitions encryption making it immune to new developments in brute-force attacks. VeraCrypt is available for Windows, MacOS and Linux.
Notable
Notable simple yet powerful Markdown editor that features multi-cursors, a minimap and best-in-class syntax highlighting.
ReverseSSH
ReverseSSH is a statically-linked ssh server with a reverse connection feature for simple yet powerful remote access. Most people find ReverseSSH useful during HackTheBox, CTF's and similar challenges.