WinMorph™ is a high performance morphing and warping software. Developed and distributed as a freeware, the focus is on providing both high speed and high quality warping/morphing tools for both home users and amateur/professional video editors.
This is the open-source development environment with which you can write Arduino code to be used on any of your boards for your own purposes: Arduino IDE
OpenSCAD is software for creating solid 3D CAD models. It is free software and available for Linux/UNIX, Windows and Mac OS X. Unlike most free software for creating 3D models (such as Blender) it does not focus on the artistic aspects of 3D modelling but instead on the CAD aspects.
Paint.NET is image and photo editing software for PCs 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.
GIMP is a free and open-source raster graphics editor used for image manipulation (retouching) and image editing, free-form drawing, transcoding between different image file formats, and more specialized tasks. It is not designed to be used for drawing. The current stable release of GIMP is 2.10.30 (2021-12-19) and is available for Linux, macOS, and Microsoft Windows.
Light Image Resizer (coming from the old VSO Resizer) is an image resizing application that contains many predefined profiles (such as HDTV 720 and 1080, useful for viewing images on a modern TV, or similar), in order to facilitate things for those who are not very savvy with resolutions.
FastStone Photo Resizer is an image converter and renaming tool that intends to enable users to convert, rename, resize, crop, rotate, change color depth, add text and watermarks to images in a quick and easy batch mode. Drag and Drop mouse operation is well supported.
XnConvert is a fast, powerful and free cross-platform batch image converter. It allows to automate editing of your photo collections: you can rotate, convert and compress your images, photos and pictures easily, and apply over 80 actions (like resize, crop, color adjustments, filter, ...).
ImBatch is a free multithreaded image processing tool for your Windows PC. With the help of ImBatch, users can perform a variety of complex image editing tasks; applying those changes to hundreds of images at once. Whether you’re looking to crop, resize, rotate, add/remove tags or convert image format, ImBatch provides users with dozens of editing tools.
DraftSight® is a feature-rich 2D and 3D CAD solution for architects, engineers and construction service providers, as well as professional CAD users, designers, educators and hobbyists.