Open Source nomacs AlternativesTop Image Viewers & Image Editors like nomacs

The best open source alternative to nomacs is ImageGlass. If that doesn't suit you, our users have ranked more than 50 alternatives to nomacs and loads of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to nomacs are qView, Gwenview, JPEGView and PicView.

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nomacs alternatives are mainly Image Viewers, but if you're looking for Image Editors or Photo Managers you can filter on that. Other popular filters include Open Source. These are just examples - use the filter bar below to find more specific alternatives to nomacs.
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Alternatives list

  1. ImageGlass icon
     239 likes

    A feature-rich, simple-to-use app seamlessly integrated with a clean, minimal and modern user interface.

    81 ImageGlass alternatives

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Windows
     
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    9
  2. qView icon
     80 likes

    Fast and lightweight Qt-based image viewer with support for Windows, macOS, and Linux. Features include multiple format support, customizable interface, GIF playback, high-resolution display compatibility, and efficient navigation through keyboard shortcuts.

    110 qView alternatives

    Cost / License

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • Flathub
     
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    6
  3. Gwenview icon
     90 likes

    Offers quick browsing and display of various image formats, basic editing tools like crop, rotate, lossless JPEG manipulation, folder browsing as thumbnails or slideshows, supports XCF, drag-and-drop, metadata viewing, KDE integration, and plugin extensions.

    93 Gwenview alternatives

    Cost / License

    Application type

    Platforms

    • Linux
    • KDE Plasma
    • Snapcraft
    • Flathub
     
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    1
    Comments about Gwenview as an Alternative to nomacs
    Golfy038
    Positive
    0

    Many functions, able to show multiples images, easy save image...

    Gwenview icon
    Gwenview icon
    • Gwenview is Free and Open Sourcenomacs is also Free and Open Source
  4. JPEGView icon
     145 likes

    Lightweight Simple Image Viewer with Slide show feature, Resize and Lossless-cut, Color correction, Rename, Multi-language and more...

    138 JPEGView alternatives

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Windows
    • PortableApps.com
     
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    6
  5. PicView icon
     48 likes

    PicView is a fast, free and fully customizable picture viewer for macOS and Windows 10/11. It supports virtually all image file types, including (animated) WEBP, (animated) GIF, SVG, AVIF, HEIC, PSD and many others.

    63 PicView alternatives

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Windows
    • Mac
     
  6. qimgv icon
     41 likes

    Qt5 image viewer with optional video support. Ability to quickly copy / move images to different folders. Can open some extra formats (JPEG-XL, AVIF, APNG, HEIF/HEIC, RAW) via third-party image plugins.

    113 qimgv alternatives

    Cost / License

    Application type

    Platforms

    • Windows
    • Linux
     
    |
    1
    Comments about qimgv as an Alternative to nomacs
    Nightcall
    Positive
    0

    Video playback, better UI and grid layout and can move, cut, copy & paste files.

    qimgv icon
    qimgv icon
    • qimgv is Free and Open Sourcenomacs is also Free and Open Source
  7. PhotoSort icon
     10 likes

    Desktop app for photo sorting on Windows & Mac, managing JPG+RAW files. Sort photos into folders using keys, providing easy navigation and clean interface without deletion, ensuring a focused experience with flexible viewing, safe storage, and no fluff.

    Cost / License

    Application type

    Alerts

    • Discontinued

    Platforms

    • Mac
    • Windows
     
  8. gThumb icon
     104 likes

    gThumb is an image viewer and browser for the GNOME Desktop. It also includes an importer tool for transferring photos from cameras.

    122 gThumb alternatives

    Cost / License

    Application type

    Platforms

    • Linux
    • Flathub
    • GNOME
     
  9. Pix icon
     11 likes

    An image viewer and browser utility - primarily for Linux Mint. Pix is part of the X-Apps project, which aims at producing cross-distribution and cross-desktop software.

    72 Pix alternatives

    Cost / License

    Application type

    Platforms

    • Linux
     
  10. Eye of GNOME icon
     48 likes

    Eye of GNOME is the official image viewer for the GNOME Desktop environment. With it, you can view single image files, as well as large image collections. The Eye of GNOME supports a variety of image file formats.

    91 Eye of GNOME alternatives

    Cost / License

    Application type

    Platforms

    • Linux
    • Flathub
    • GNOME
     
  11. PhotoQt icon
     32 likes

    PhotoQt is a fast and simple, good looking, yet powerful and highly configurable image viewer.

    57 PhotoQt alternatives

    Cost / License

    Application type

    Platforms

    • Windows
    • Linux
    • Flathub
     
12 of 54 nomacs alternatives