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Nomacs Review – Is It a Worthwhile Photo Viewer to Browse Photos

Last Updated on September 20, 2025 by Peter Wood

Nomacs is an open-source photo viewer for Windows. Is it a worthwhile and desired program to view RAW photos and PSD files? What are the supported file formats? Of course, you can simply download Nomacs to browse photos, resize images, and display EXIF information. Of course, you can learn more from the Nomacs review and check the best alternative.

Nomacs Review

Part 1: The Brief Review of Nomacs You Should Know

Just as mentioned above, Nomacs is a free image viewer for Windows. The latest Nomacs 3.16 was released on July 17th, 2020 with AVIF compatibility and cropping features. Besides browsing photo files, there are more advanced features, including image editing and viewer synchronization. Here are some recommended features you should know.

1. Compatible with Windows, Linux, Flathub, Debian, FreeBSD, and more.

2. Provide fast thumbnail preview, frameless view, EXIF information, etc.

3. Edit photos with the crop, resize, pseudo, rotate, delete, and wallpaper.

4. Enable you to sync multiple instances and multiple instances in the LAN.

Nomacs Interface

Brief Review of Nomacs Image Lounge

Cons:

1. It is a lightweight photo viewer that takes up less memory and saves space.

2. Support most image formats, including RAW formats from the camera.

3. Read image files in zip files, preview MS Office documents, and more.

4. Provide editing features, such as brightness, saturation, and contrast.

5. Generate mosaics by overlaying histogram-like data for comparison.

6. Display thumbnails, histograms, metadata, and additional information.

7. Overlay two or more instances and arrange synchronized instances.

Pros:

1. The function area is not obvious, such as copy area and copy buffer.

2. Difficult to share photos with others via social media sites or others.

3. Minor problems with the building blocks, which are often slow to respond.

4. Lags and other status quo are frequently reported for Nomacs.

Resize Nomacs

Part 2: Best Nomacs Alternative to Browse Images

Is there a Nomacs alternative to browse photos, videos, and documents on Windows and Mac? WidsMob Viewer Pro is one of the best media viewers that enable you to browse, convert, edit, and manage most media files from all devices. It provides different viewing modes to view the photos and videos in thumbnails, full-screen, EXIF, frameless, and more.

1. All-in-one media library to manage photos, videos, and PDF documents.

2. Sort the desired media files via name, size, time, description, and more.

3. Provide basic editing features to copy, resize, rotate, crop, delete, etc.

4. Customize the mouse wheel settings, folder view, and browsing methods.

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Browsing Modes: Nomacs V.S. WidsMob Viewer Pro

Both Nomacs and WidsMob Viewer Pro provide multiple viewing modes, such as the thumbnail mode, full-screen, frameless, slideshow mode, EXIF mode, and more. WidsMob Viewer Pro is a folder-based library that enables you to locate and manage photos easily. Moreover, there are thumbnail options and editing features for the full-screen mode.

Thumbnail Nomacs Thumbnail Mode Viewer Pro Full Screen Nomacs Full Screen Viewer Pro

RAW Comparison: Nomacs V.S. WidsMob Viewer Pro

Besides the PDF and video formats, WidsMob Viewer Pro supports much more RAW file formats and photo file formats than Nomacs, including AVIFs, APNG, CR3, X3F, MRW, NEF, NRW, SR2, ORF, PEF, RAF, SRF, and more. It not only enables you to read the photos but also write and edit them according to your requirements.

Editing Features: Nomacs V.S. WidsMob Viewer Pro

Since Nomacs and WidsMob Viewer Pro are both media viewers, which only provided limited editing features. You can find the same editing features, such as cropping, resizing, color adjustment, rotating, deleting, renaming, and creating a mosaic image.

Crop Image Nomacs Crop WidsMob Viewer Pro

Viewing Settings: Nomacs V.S. WidsMob Viewer Pro

There are some slight differences between Nomacs and WidsMob Viewer Pro. Nomacs provides some basic viewing features, such as transparency patterns and anti-aliasing. WidsMob Viewer Pro enables you to set up mouse wheel settings, view options, and other settings. Moreover, WidsMob Viewer Pro has more viewing modes compared to Nomacs.

Nomacs Viewing Mode WidsMob Viewing Mode Viewer Pro

Note: When you need to manage the photos easily, the folder-based library of WidsMob Viewer Pro enables you to manage the photos and videos easily. Of course, you can also find the user interface of WidsMob Viewer Pro is much easier to master.

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Part 3: FAQs about Nomacs Image Lounge

1Can I install Nomacs image lounge for Mac?
Yes. But you should be familiar with the codec for building the Nomacs on your Mac. Of course, you can also use Homebrew for easier installation of dependencies. It also requires you to choose Intel models or Apple Silicon models to install the program on Mac.
2Why the sync feature does not work on Nomacs?
Synchronization is an interesting feature of Nomacs, which you can control multiple instances of the program simultaneously. Nomacs' sync feature works on local systems but also on a local area network. But you have to enable the network sync in the preferences beforehand.
3Can Nomacs perform batch image processing?
Yes. Nomacs can perform batch image processing, but due to its lightweight, there may be a slight problem with smoothness. But it only provides a simple batch processing that would improve Nomacs file management, including editing EXIF tags of multiple files, renaming multiple files, or converting files to other image formats.

Conclusion

This article introduces you in detail to the functions, features, pros, and cons of Nomacs Image Lounge. But there are lots of restrictions, such as the user interface, the supported RAW file formats, the editing features, the viewing modes, and others. If you need to find a better Nomacs alternative, WidsMob Viewer Pro is the initial choice you should consider. Just learn more about the comparison before you have the final choice.

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