Open Source Software for Windows
Kitty Terminal
Kitty is a fast, featureful, GPU based terminal emulator for macOS, Linux and Windows. The project is developed by kovidgoyal and released as free and open software under the GPL-3.0 License. The terminal achives maximal performance by offloading rendering to the GPU for lower system load and smooth scrolling, making it a good choice when compared to resource heavy elctron-based terminals. Kitty Terminal also supports modern features like graphics, unicode, true-color, OpenType ligatures, mouse protocol, hyperlinks, focus tracking, bracketed paste and several new terminal protocol extensions.
Apache OpenOffice
Apache OpenOffice is a free and open-source office suite that offers free applications for word processing, spreadsheet, presentations, graphics, and databases. It is one of the successor projects of OpenOffice.org and the designated successor of IBM Lotus Symphony. With Apache OpenOffice all data is stored in an open standard format allowing users to read and write files from all major office software.
WPS Office
WPS Office is a powerful office suite that offers tools for writing documents, managing speadsheets and creating presentations. WPS Office features built-in spell check, keyboard shortcuts, view multiple documents, password protection, save to .pdf, convert to .doc .docx, mail merge, and an intuetive interface that makes you feel right at home. Included in the WPS Office suite is WPS Writer, WPS Spreadsheet, and WPSPresentation.
balenaEtcher
With balenaEtcher people can create an installation media of your operating system by burning the image on a bootable flash drive. The software, that was previously known as Etcher, is developed by Balena and the open-source community and released free of charge under the Apache-2.0 License. balenaEtcher can be downloaded and used for following operating systems: macOS, Linux and Windows.
Arduino IDE
Audrion IDE is a code editor and integrated development environment for Audrio boards used by makers across the globe. The open-source Arduino IDE makes it easy to write code and upload it to any Arduino board. Audrion IDE provides an interface that features autocompletion, code navigation, and even a live debugger.
WampServer
WampServer is a pre-configured web development stack for the Windows operating system. With WampServer it easy to manage a local web development environment that includes the Apache Web Server, the programming language PHP, combined with a MySQL or MariaDB database. WampServer comes with an installer that automatically installs everything you need to get started with the stack. Which makes WampServer a perfect choice for developer looking to quickly setup a local WAMP stack.
Krita
Krita is a professional free and open-source painting software created and maintained by artists. The main focus of the project is to create top quality painting tools that everyone can afford and enjoy. Krita features an OpenGL-accelerated canvas, colour management support, an advanced brush engine, non-destructive layers and masks, group-based layer management, vector artwork support and switchable customisation profiles.
Darktable
Darktable is a free and open-soource photo editing software created for photographers, by photographers. Darktable is specifically designed for non-destructive raw photo post-production editing. The Darktable development community is comprised of avid photographers that has a good understanding of real world problems, challenges, and workflows.
Cigati OST to PST Converter
Cigati OST to PST Converter Software is a powerful utility that is able to convert the offline OST files into the PST and another file format very easily. It can also transfer your attachments like the email, contacts, calendar, task, notes, journals, etc. The utility is embedded with the smart auto-search feature. Cigati OST to PST Converter Software is comparable with all versions of the Windows Operating system. A Demo version of this utility is also available.
Apache Spark
Apache Spark is a free and open-source, unified analytics engine for large-scale data processing. Apache Spark achieves high performance for both batch and streaming data, using a state-of-the-art DAG scheduler, a query optimizer, and a physical execution engine. With Apache Spark, you can write application quickly in Java, Scala, Python, R, and SQL. Spark also offers over 80 high-level operators that make it easy to build parallel apps. You can run Apache Spark anywhere, as a standalone product, in the cloud or on Hadoop, Apache Mesos or Kubernetes.