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Paint.NET is image and photo editing software for computers that run Windows. It features an intuitive and innovative user interface with support for layers, unlimited undo, special effects, and a wide variety of useful and powerful tools. An active and growing online community provides friendly help, tutorials, and plugins. It started development as an undergraduate college senior design project mentored by Microsoft, and is currently being maintained by some of the alumni that originally worked on it. Originally intended as a free replacement for the Microsoft Paint software that comes with Windows, it has grown into a powerful yet simple image and photo editor tool. It has been compared to other digital photo editing software packages such as Adobe Photoshop, Corel Paint Shop Pro, Microsoft Photo Editor, and The GIMP.

K-Meleon is an extremely fast, customizable, lightweight web browser based on the Gecko layout engine developed by Mozilla which is also used by Firefox. Gecko provides excellent support for current (X)HTML, CSS and DOM standards. K-Meleon's design goal is to provide a fast and reliable web browser while providing a highly customizable interface and using system resources efficiently. K-Meleon uses the native Windows application programming interface (API) to create its user interface instead of Mozilla's cross-platform XML User Interface Language (XUL) layer, and as a result, is tightly integrated into the look and feel of the Windows desktop.

Convert and optimize your pictures JPEG/PNG/WEBP to smaller JPEG XL files (up to 10-60%)! Optimizer for JPEG XL (*.jxl) files (10-15% smaller) in lossless mode. JPEG XL (.jxl) is the next-generation, general-purpose image compression codec by the JPEG committee. It was based on Google's Pik proposal and Cloudinary's FUIF proposal (which itself was based on FLIF). High compression ratio - better than your programs / photo camera or smartphone. Lossless JPEG transcoding - about 20% smaller. JPEG XL is a modern image format that provides superior lossy and lossless compression for images. Using JXL, webmasters and web developers can create smaller, richer images that make the web faster. It uses program cjxl.exe. Batch processing of files (drag-n-drop). Program optimizes your file to new one with «_optimized» name ending (source file will remain intact). Reduce the size of your image files in one click with ot without quality loss! JPEG XL images are 60% smaller in size compared to JPEG and 35% to PNG.

Wise Disk Cleaner is a user friendly, fast and easy to use application developed to free up disk space by deleting junk files that are no longer used by any software on your system. Even the least experienced user can easily remove junk files with this tool. Your hard disk is littered with junk files you don't need, taking up precious hard disk space, and potentially slowing down your PC's performance. There are files of all kinds, such as temporary files that applications should delete when they're no longer needed, and various log files, index files and backup files. You'd be amazed at how much space these junk files take up.

Wise Registry Cleaner is one of the the best registry cleaner and registry optimizer, it speeds up your PC by cleaning your Registry. Help you improve your PC's performance by optimize your Registry, and it's so easy, you only need make a few clicks. The Registry is at the heart of every Windows computer. The older your PC is, the more junked-up its Registry becomes. Badly written programs (and there are plenty of those around) don't bother to clean the Registry when you uninstall them, and some programs add unnecessary junk to the Registry. The more junked-up your Registry, the more likely it is to crash or to slow down your PC.

Radical Image Optimization Tool (RIOT for short) is a free image optimizer that will let you to visually adjust compression parameters while keeping minimum filesize. It uses with a side by side (dual view) or single view interface to compare the original with the optimized image in real time and instantly see the resulting file size. It is lightweight, fast and simple to use, yet powerful for advanced users. You will be able to control compression, number of colors, metadata settings and much more, and select image format (JPG, GIF or PNG) for your output file.

LibreOffice is a free alternative to MS Office with a Word compatible word processor, a complete Excel compatible spread sheet program and a Power Point like presentation software and drawing program and also allows to save to PDF file. In addition, LibreOffice.org offers enhanced printing capabilities and options for direct connection with external email programs as well as form-letter management to send letters to addresses from a database. WRITER is OpenOffice.org's word processor: use it for anything from writing a quick letter to producing an entire book with embedded illustrations, cross-references, tables of contents, indexes, bibliographies... Auto-complete, auto-format, and real-time spelling check make light work of the hardest task. Writer is powerful enough to tackle desktop publishing tasks such as creating multi-column newsletters, brochures. The only limit is your imagination.

darktable is an open source photography workflow application and raw developer. A virtual lighttable and darkroom for photographers. It manages your digital negatives in a database, lets you view them through a zoomable lighttable and enables you to develop raw images and enhance them. Raw is the unprocessed capture straight from the camera’s sensor to the memory card, nothing has been altered. darktable is created for photographers, by photographers. darktable edits your images non-destructively all the way through its pipeline. Your original image is never modified!

FreeCAD is a very useful 3D CAD modeler. FreeCAD will be a general purpose 3D CAD modeler. The development is completely Open Source (GPL & LGPL License). FreeCAD is aimed directly at mechanical engineering and product design but also fits in a wider range of uses around engineering, such as architecture or other engineering specialties. FreeCAD features tools similar to Catia, SolidWorks or Solid Edge, and therefore also falls into the category of MCAD, PLM, CAx and CAE.

Rainmeter displays customizable skins, like memory and battery power, RSS feeds and weather forecasts, right on your desktop. Many skins are even functional: they can record your notes and to-do lists, launch your favorite applications, and control your media player - all in a clean, unobtrusive interface that you can rearrange and customize to your liking. Rainmeter is at once an application and a toolkit. You are only limited by your imagination and creativity.