An image viewer and browser utility for the GNOME environment. More information can be found at https://wiki.gnome.org/Apps/Gthumb.

• Image browser

  • Browse your hard disk showing you thumbnails of image files.
  • Thumbnails are saved in the same database used by Nautilus so you don't waste disk space.
  • Automatically update the content of a folder.
  • Copy, move, delete images and folders.
  • Bookmarks of folders and catalogs.

• Image viewer

  • View single images (including GIF animations). Supported image types are: BMP, JPEG, GIF, PNG, TIFF, TGA, ICO, XPM, JXL, AVIF.
  • Optional support for RAW and HDR (high dynamic range) images.
  • View EXIF data attached to JPEG images.
  • View in fullscreen mode.
  • View images rotated, flipped, mirrored.

• Image organizer

  • Add comments to images.
  • Organize images in catalogs, catalogs in libraries.
  • Print images and comments.
  • Search for images on you hard disk and save the result as a catalog. Search criteria remain attached to the catalog so you can update it when you want.

• Image editor

  • Change image hue, saturation, lightness, contrast and adjust colors.
  • Scale and rotate images.
  • Save images in the following formats: JPEG, PNG, TIFF, TGA.
  • Crop images.
  • Red-eye removal tool.

• Advanced tools

  • Import images from a digital camera.
  • Slide Shows.
  • Set an image as Desktop background.
  • Create index image.
  • Rename images in series.
  • Convert image format.
  • Change images date and time.
  • JPEG lossless transformations.
  • Find duplicated images.

gThumb has a plug-in system for extensions. Some standard features are implemented as extensions and are supplied with the standard distribution. Users may write (and share) additional extensions.

See https://wiki.gnome.org/Apps/Gthumb/extensions for details.

This program is released under the terms of the GNU General Public License (GNU GPL), either version 2, or (at your option) any later version.

You can find a copy of the license in the file COPYING.

Mandatory libraries:

• glib >= 2.38.0
• gtk >= 3.16
• libpng
• zlib
• libjpeg
• gsettings-desktop-schemas

While not mandatory, the following libraries greatly increase gThumb's basic usefulness:

• exiv2 - embedded metadata support
• gstreamer, gstreamer-plugins-base, gstreamer-video - audio/video support
• libtiff - tiff writing support

Other optional libraries:

• libraw - some support for RAW photos
• librsvg - display SVG images
• libwebp - display and save WebP images
• libjxl - display JPEG XL images
• libheif - display and save AVIF images
• lcms2, colord - color profile support
• champlain, champlain-gtk - view the place a photo was taken on a map
• clutter, clutter-gtk - enhanced slideshow effects
• libsoup, json-glib, webkit2gtk, libsecret - upload images to and download images from some web services such as Facebook, Flickr
• brasero - write images and comments to CDs
• bison, flex - web albums

Source archives available at http://ftp.gnome.org/pub/GNOME/sources/gthumb.

Clone the Git repository:

git clone https://gitlab.gnome.org/GNOME/gthumb.git

cd gthumb
meson build
ninja -C build
sudo ninja -C build install

More development information is available at https://wiki.gnome.org/Apps/Gthumb/development.