gThumb is an image viewer, organizer, and browser utility for the GNOME Desktop.
It was originally based on GQView, and is designed to have a clean, simple interface.
gThumb has a plug-in system for extensions. Some standard features are implemented as extensions and are supplied with the standard distribution.
The software is published under an open source license.
Key Features
Image Viewer
- View single images (including GIF animations). Supported image types are: BMP, JPEG, GIF, PNG, TIFF, ICO, XPM.
- View EXIF data attached to JPEG images.
- View in fullscreen mode.
- View images rotated, flipped, in black and white.
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 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.
Advanced Tool
- Export photos to various popular websites including Facebook, Photobucket, Picasa Web Album and Flickr.
- Import images from a digital camera.
- Slide Shows.
- Set an image as Desktop background.
- Create index image.
- Create web albums.
- Rename images in series.
- Convert image format.
- Change images date and time.
- JPEG lossless transformations.
- Find duplicated images.
- Write images to CD/DVD.
- Fully documented.
Bonobo Component
- Image viewer component. Differences with the EOG component: display GIF animations; print the image and its comment.
Website: wiki.gnome.org/Apps/gthumb
Support: News
Developer: Paolo Bacchilega, Michael J. Chudobiak and contributors
License: GNU General Public License v2.0

gThumb is written in C. Learn C with our recommended free books and free tutorials.
Related Software
| Photo Management Software | |
|---|---|
| digiKam | Image organiser and editor using KDE |
| darktable | Photography workflow application and raw developer |
| TagStudio | Tag-based photo and file organization program |
| gThumb | Image viewer and organizer for the GNOME desktop environment |
| Shotwell | Personal photo management |
| KPhotoAlbum | Tool for indexing, searching and viewing images for KDE |
| Pix | Image viewer and browser utility which is based on gThumb |
| Tropy | Explore your research photos |
| Rapid Photo Downloader | Photo and video downloader |
| Allusion-rafauc | Fork of Allusion |
| Allusion | Organize your visual library |
| GNOME Photos | Access, organize and share your photos on GNOME |
| Snu Photo Manager | Feature-rich photo manager |
Read our verdict in the software roundup.
| Graphical Image Viewers | |
|---|---|
| feh | Fast and light Imlib2-based image viewer |
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| swayimg | Image viewer for Wayland |
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| LXImage-Qt | LXQt image viewer and screenshot tool |
| Mirage | Fast and simple GTK+ image viewer |
| PixelViewer | .NET based cross-platform image viewe |
| Pix | Image viewer and browser utility which is based on gThumb |
| ImageFan Reloaded | Tab-based image viewer |
| BeeRef | Simple reference image viewer |
| Ephoto | Image viewer based on the EFL |
| SphereView | Image viewer for 360° equirectangular photospheres and panoramas |
| Imagot | Basic graphical image viewer |
| flxvwr | Image viewer written in Go using the Fyne toolkit |
| Blackbody | Thermogram viewer. It allows viewing FLIR and TIFF images |
Read our verdict in the software roundup.
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