Flatsonar

Image Compare

by gimletlove

Image comparison and visual diff tool

Sandboxed Verified creator GPL-3.0-or-later v1.3.0
Screenshot 1 of Image Compare

About

Image Compare is a desktop image comparison and visual diff tool for Linux and Windows. Compare two or more images side by side, in a stacked view, or in a grid layout, and generate luminance SSIM heatmaps to highlight structural differences between two images.

Use it to compare different versions of the same image, choose the best-quality copy from multiple sources, check compression artifacts, inspect scans or image exports, compare edited or upscaled versions, and catch subtle changes in color, sharpness, cropping, scaling, or encoding.

  • Open images using drag-and-drop, the file picker, command-line arguments, or a file manager's Open With action
  • Compare two or more images side by side, in a stacked view, or in a grid layout
  • Synchronize zoom and pan across all images
  • Keep the same proportional region visible across different resolutions
  • Lock individual images to zoom and pan them independently
  • Flip between images in the same position using stacked view
  • Generate and export luminance SSIM heatmaps to highlight structural differences between two images
  • Switch between color-managed rendering using embedded profiles and raw rendering
  • Copy image paths, open containing folders, and close files from image context menus

Permissions

Everything this app can reach outside its sandbox. Nothing here weakens it.

  • inter-process communication (needed for X11)
    --share=ipc
  • X11 display, only when Wayland is unavailable
    --socket=fallback-x11
  • Wayland display
    --socket=wayland
  • GPU acceleration
    --device=dri
  • access to xdg-config/kdeglobals
    --filesystem=xdg-config/kdeglobals:ro
  • talks to com.canonical.AppMenu.Registrar
    --talk-name=com.canonical.AppMenu.Registrar
  • talks to org.kde.kconfig.notify
    --talk-name=org.kde.kconfig.notify
  • talks to org.kde.KGlobalSettings
    --talk-name=org.kde.KGlobalSettings

Who publishes this

The creator demonstrably controls this app id: Flathub verification, the hosting account owns the namespace, or a well-known file on their domain.

  • verified on Flathub: the developer proved they control this app id
    publisher:flathub

Maintenance

Recent activity on the upstream repository, or built and reviewed by Flathub.

No staleness signals: recent activity, or built and reviewed by Flathub.