Image viewer and organizer


Phototonic is a fast and functional image viewer and organizer, inspired by the traditional image viewer design (i.e. thumbnails and viewer layouts).
Phototonic is released under GNU General Public License v3.


  • Light weight with a smooth and clear user interface
  • Does not depend on any desktop environment
  • Supports several customized thumbnail layouts
  • Supports tagging images and filtering images by tags
  • Load thumbnails and browse images recursively on a folder tree
  • Dynamic thumbnails loading, enables fast browsing of very large folders
  • Filter thumbnails by name
  • Image navigation and file management
  • Slide show
  • Transformation: rotation, flipping, cropping, image mirroring and scaling
  • Adjust brightness, contrast, hue, saturation, color levels and negativity
  • Keep transformations, zoom and colors while browsing multiple images
  • Extensive automatic and manual zoom options
  • Supported image formats: BMP, CUR, GIF, DDS, ICO, JPEG, MNG, PBM, PGM, PNG, PPM, SVG, SVGZ, TGA, TIFF, XBM, XPM
  • Supports GIF animations
  • Keyboard shortcuts and mouse behavior customization
  • Open images with external applications
  • Display image information and metadata
  • Rotate images and thumbnails automatically according to Exif orientation tag
  • Bookmarks
  • Find and manage duplicate images
  • News

  • 12 Nov 2015 - v1.7.1
    • Changes to the way layouts are being switched, now faster and more efficient
    • Fixed issue with not reading image tags correctly when exif data was missing from image
    • Added Negate option to image tags filtering
    • Docks can now be nested to create more customized layouts
    • Some enhancements to Tags user experience and icons
    • Fixed issue with limited zoom functionality
    • Better error handling when reading corrupted images
    • New translations added
  • 8 Aug 2015 - v1.6.17
    • Image tags improvements and bug fixes
    • Changes to default key mapping
    • Small fixes to image extensions
    • Fixed issue with thumb label appearing after rename when labels are not displayed
    • Improvements to image feedback
    • Some dialog usability fixes
    • Added Negativity settings per color channel
    • Fixed colors manipulations for images with alpha channel and non animated GIF images
    • Other Bug fixes
  • 4 Jul 2015 - v1.6.6
    • Improved tags usability and performance
    • Bug fixes
  • 6 Jun 2015 - v1.6.2
    • Image tags, tagging images and filtering images by tags
    • Delete confirmation is now configurable
    • Improvements to drag and drop
    • A more sophisticated Dir-completer
    • Many many more fixes and improvements, thanks to the contributors!
  • Older news


    See enhancements


  • Qt 5.x
  • Exiv2
  • Optional:

  • qt5-imageformats (TIFF and TGA support)
  • qt5-svg (SVG support)
  • Installation

    General instructions:
    $ tar -zxvf phototonic.tar.gz
    $ cd phototonic
    $ qmake PREFIX="/usr"
    $ make
    $ sudo make install
    Example for Ubuntu:
    $ sudo apt-get install build-essential
    $ sudo apt-get install qt5-default libexiv2-dev
    $ tar -zxvf phototonic.tar.gz
    $ cd phototonic
    $ qmake qt=qt5
    $ make
    $ sudo make install