Pixabay.com is an international, copyleft and free-to-use website for sharing photos, illustrations, vector graphics, and film footage.
SketchBook Pro, also referred to as SketchBook, is a raster graphics software application intended for expressive drawing and concept sketching.
FileZilla is a free software, cross-platform FTP application, consisting of FileZilla Client and FileZilla Server. Client binaries are available for Windows, Linux, and macOS, server binaries are available for Windows only.
Placeholder.com is a free image placeholder service for web designers, serving billions and billions of images each year.
CircuitMaker is electronic design automation software for printed circuit board designs targeted at the hobby, hacker, and maker community. CircuitMaker is available as freeware, and the hardware designed with it may be used for commercial and non-commercial purposes without limitations.
LTspice is freeware computer software implementing a SPICE electronic circuit simulator, produced by semiconductor manufacturer Linear Technology, now part of Analog Devices.