Announcing ImageGlass Moon 9.0 beta 4

This is the beta-4 release of ImageGlass version 9. Features and settings may still be changed when the official version 9 is released.

ImageGlass 9.0 beta 4

To follow the progress of version 9 beta 5, please visit: You can also support this project by making a donation or purchasing from Microsoft Store (version 8):

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from Microsoft Store

Update minimum requirements for ImageGlass 9

General changes

  • Upgraded Magick.NET to version 13.0.1.
  • Improved ImageGlass startup time and latency by enabling ReadyToRun compilation.
  • Added support for animated APNG and WEBP formats with hardware acceleration.
  • Added support for auto-switching theme according to system dark / light mode.
  • It shows Color space and Color profile info on the title bar and thumbnail's tooltip.
  • Added support for updating the viewing image folder in real time. You can disable this feature by setting EnableFileWatcher.
  • Changed the prefix for passing app setting as command-line from - to /. Example: ImageGlass.exe /EnableFrameless=true.
  • Added support for open external apps for editing by setting EditApps. Example:
    // in igconfig.json
    "EditApps": {
      ".png": {
          "AppName": "Paint.NET",
          "Executable": "C:\\\\paintdotnet.exe",
          "Argument": "<file>"
  • Added options about what to do after the external editor is launched by setting AfterEditingAction.
  • Added new feature: Export image frames
  • Added new feature: Rotate image
  • Added support for saving TIFF, GIF as multiple frames.
  • Improves ImageGlass Slideshow view with Frameless, Window Fit mode.

New window modes

  • Frameless mode

    • The window corners are rounded by default.
    • Hold SHIFT and drag to move the window.
  • Window fit mode

    • Disables Maximize button on the window.
    • Improve performance when the user zooms over the image.
    • Added support for all zoom modes in Window mode.
  • Window modes combination for the main view and slideshow view:

    Mode Full screen Frameless Window fit
    Full screen
    Window fit

Layout customization

  • Added support for layout customization using setting Layout for:
    • Toolbar with setting Toolbar,
    • Thumbnail bar with setting Gallery,
    • Contextual toolbar with setting ToolbarContext.
  • Example:
    // in igconfig.json
      "Layout": {
        "Toolbar": "Top;1", // Toolbar is at top, below thumbnail bar
        "Gallery": "Top;0", // thumbnail bar is at top, above the toolbar
        "ToolbarContext": "Bottom", // contextual toolbar is at the bottom

New Page navigation tool

  • Supports for viewing separate image frame.
    • Non-animated formats (TIFF, ICO,...).
    • Animated formats (GIF, WEBP, APNG,...).
  • Respects the size and orientation of the image frame.
  • Exports all frames.

New Color picker tool

  • Shows cursor location on the viewing image.
  • Clicks to pick the pixel color.
  • Adds support for color formats: RGB, HEX, CMYK, HSL, HSV.
  • Added buttons to copy the color code.
  • Added a Settings window with options to show alpha values for each color format.

External tools support

  • You can download external tools at
  • Created library for other 3rd-party apps to communicate with ImageGlass via IPC message events.
  • Sends events to the external tools using ImageGlassEvents.
  • Sends EnableWindowTopMost as a command-line argument to request the external tool window to be top most.
  • Use the ToolSettings setting to store the settings of the built-in tools (Crop tool, Color picker) instead Tools.
  • Added support for adding external tools to ImageGlass Tools menu by setting Tools and assigning the tool's hotkeys by setting MenuHotkeys.
  • Shows "Tool not found" dialog to allow the user to select the executable path of the tool.
  • For more details, please refer to

Introducing ExifGlass - a new ExifTool for ImageGlass

ExifGlass is a brand new EXIF metadata viewing app, designed to work seamlessly with ImageGlass 9, but can also be used as a standalone software on your computer. To use ExifGlass, you need to have ExifTool by Phil Harvey installed on your system.

For more details, please visit:


Download it now!

Please be cautious of scams and only download ImageGlass from our official website. We highly recommend against downloading ImageGlass from any other source to avoid potential security risks. Additionally, if you encounter any bugs, have suggestions, or would like to provide feedback, please use our Issues tracker.

Download ImageGlass Moon 9.0 beta 4

For all new features and details of the changes, please visit:

Support ImageGlass

ImageGlass stands as an open-source, ad-free photo viewer, yet its development and upkeep demand resources. Your financial backing not only sustains this project but also fuels my motivation for crafting future releases.

Should you opt for GitHub Sponsor or Patreon, be sure to explore the tier-specific benefits on offer.
Your support is greatly appreciated!