by Markus Diem, Stefan Fiel, Florian Kleber

nomacs is an image viewer and organizer with a wide range of features.

Operating system: Windows

Publisher: Markus Diem, Stefan Fiel, Florian Kleber

Antivirus check: passed

Last revision: Last week

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nomacs Image Lounge

nomacs is a free and open source image viewer that is available for Windows, Linux, and MacOS. It is a feature-rich image viewer that provides a comprehensive range of tools for viewing, editing, and managing your digital images.

nomacs offers an easy-to-use, feature-rich and lightweight image viewer.


• Support for multiple image formats including: BMP, JPEG, PNG, TIFF, and RAW images
• Support for multiple color spaces including: RGB, HSL, sRGB, CMYK, and LAB
• Multi-view mode with synchronization of pan & zoom
• Image information & EXIF data display
• Display of EXIF and IPTC tags
• Display of histogram
• Slideshow
• Fullscreen mode


• Image manipulation & adjustment
• Brightness & contrast adjustment
• Color curves
• Color balance
• Apply filters to images
• Flip, rotate, and crop images
• Resize images


• Create & manage image collections
• Sort & filter images
• Quick access to recent folders
• Create & manage albums
• Drag & drop images
• Create & manage thumbnails
• Tag images

Advanced Features:

• Command line interface
• Generate HTML galleries
• Generate web galleries
• Generate PDF documents
• Generate video slideshows
• Generate contact sheets
• Generate panoramas
• Generate HDR images
• Color management
• Support for RAW files
• GPU accelerated image processing
• Support for multi-core/multi-threaded processing
• Automatically save image files
• Support for command line scripting
• Support for image planes & z-stacking
• Support for extended mouse wheel support
• Support for multiple monitors
• Support for multiple languages
The nomacs software is compatible with Windows 7, 8, and 10, as well as MacOS X 10.9 or higher and Linux (Ubuntu 14.04 and higher). It requires at least 1 GB of RAM, a dual-core processor, and an OpenGL 2.1-capable graphics card. Additionally, the software is available in 32 and 64 bit versions.
image/svg+xmlBotttsPablo Stanley Körner
Samuel X.

Nomacs is a great software. It offers a lot of features and is easy to use. I particularly like the fact that it can open multiple files at the same time and that it has a built-in image viewer. The image editing tools are also great and very intuitive. I was also impressed by how fast it is when loading images. The dark theme of the interface is also pleasing to the eye and makes it easy to work with. On top of that, the software is free and open source. All in all, Nomacs is a great choice for anyone looking for an image editor and viewer.
image/svg+xmlBotttsPablo Stanley Körner
Cooper Hanshaw

Nomacs is an image viewer that has a lot of great features. It has a simple and intuitive user interface, making it easy to use. It supports a wide range of image formats and has a good range of editing tools. It also features a slideshow feature, allowing users to view their images in an organized way. The thumbnails load quickly and make navigation easy.
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