Dia is a free open-source program for designing and building technical diagrams. It is fairly easy to use and can be installed on macOS, Windows, and Linux.
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Dotgrid is a grid-based vector drawing software designed to create logos, icons and type. It supports layers, the full SVG specs and additional effects such as mirroring and radial drawing. Dotgrid exports to both PNG and SVG files.
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GIMP is a free and open-source raster graphics editor used for image manipulation 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, though some artists and creators have used it in this way.
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Inkscape is a Free and open source vector graphics editor for GNU/Linux, Windows and macOS. It offers a rich set of features and is widely used for both artistic and technical illustrations such as cartoons, clip art, logos, typography, diagramming and flowcharting. It uses vector graphics to allow for sharp printouts and renderings at unlimited resolution and is not bound to a fixed number of pixels like raster graphics. Inkscape uses the standardized SVG file format as its main format, which is supported by many other applications including web browsers.
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LibreOffice is an open-source office suite alternative to commercial office suites such as Microsoft Office, Apple Office apps, and OnlyOffice.
It is the successor to OpenOffice.org suite, the primary office suite for many Linux distros.
LibreOffice is compatible with a wide range of document formats such as Microsoft® Word (.doc, .docx), Excel (.xls, .xlsx), PowerPoint (.ppt, .pptx), and Publisher. But LibreOffice goes much further with its native support for a modern and open standard, the Open Document Format (ODF). With LibreOffice, you have maximum control over your data and content – and you can export your work in many formats including PDF.
LibreOffice Primary apps
LibreOffice suite is consisting of several apps that make its user not require any apps outside their app scope.
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macSVG is a MIT-licensed open-source macOS application for designing and editing Scalable Vector Graphics (SVG) content for HTML5 web pages, mobile apps, animation design, and general graphics usage.
SVG is an open-source format for computer graphics documents based on the authoritative Scalable Vector Graphics (SVG) 1.1 (Second Edition) – W3C Recommendation 16 August 2011 from the World Wide Web Consortium (W3C), and is supported on most modern web browsers, and many application frameworks.
macSVG can produce dynamic, high-quality graphics and animation for HTML5 web views that can be displayed on most major desktop and mobile platforms, including iOS, Android, macOS, Microsoft Windows and Linux. This video shows an example of SVG animation in macSVG:
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Pencil is built for the purpose of providing a free and open-source GUI prototyping tool that people can easily install and use to create mockups in popular desktop platforms.
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