4 Free and Open-source Publishing Apps for macOS (Intel and Apple Silicon)

1- GIMP (GNU Image Manipulation Program)

Open-source free Photo Editor and Photoshop Alternative

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.

Read about GIMP (GNU Image Manipulation Program) 's features, license, platforms, and more.

2- Inkscape

free open-source vector design software for macOS, Linux, and Windows

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.

Read about Inkscape 's features, license, platforms, and more.

3- MacDown

Native Markdown Editor for macOS

MacDown is an open source Markdown editor for macOS, released under the MIT License. It is heavily influenced by Chen Luo’s Mou.

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4- Scribus (GNU Image Manipulation Program)

Libre free Desktop Page Layout Editor and Adobe Indesign Alternative

Scribus is free and open-source desktop publishing software available for most desktop operating systems. It is designed for layout, typesetting, and preparation of files for professional-quality image-setting equipment. Scribus can also create animated and interactive PDF presentations and forms.

Read about Scribus (GNU Image Manipulation Program) 's features, license, platforms, and more.