gThumb is described as 'Image viewer and browser for the GNOME Desktop. It also includes an importer tool for transferring photos from cameras' and is a very popular Image Editor in the photos & graphics category. There are more than 100 alternatives to gThumb for a variety of platforms, including Windows, Linux, Mac, Flathub and Flatpak apps. The best gThumb alternative is IrfanView. It's not free, so if you're looking for a free alternative, you could try IrfanView or XnView MP. Other great apps like gThumb are ImageGlass, nomacs, Sly and FastStone Image Viewer.
Compact and efficient image application offering viewing, editing, and conversion with batch processing, multi-language support, plugin extensibility, and ad-free operation suitable for Windows and portable use.
Comprehensive photo management software for viewing, batch converting, editing and resizing images and creating thumbnail sheets.
digiKam is an advanced digital photo management tool that simplifies importing and organizing photos into albums. It supports various formats including RAW, features tagging, metadata management, duplicate finder, photo editing, sharing, GPS data handling, and has cross-platform compatibility.
A feature-rich, simple-to-use app seamlessly integrated with a clean, minimal and modern user interface.
nomacs is a free, open source image viewer, which supports multiple platforms. You can use it for viewing all common image formats including RAW and psd images.
Sly is a user-friendly, offline image editor requiring no expertise; adjust brightness, contrast, apply effects, and export in JPEG or PNG formats with control over metadata.
Fast image browser and editor for Windows with robust support for browsing, editing, and conversion. Features red-eye removal, resizing, enhanced EXIF access, and musical slideshows with over 150 effects.
XnView Classic is an efficient image viewer, browser and converter for Windows with built-in support for over 500 image formats.
Fast and lightweight Qt-based image viewer with support for Windows, macOS, and Linux. Features include multiple format support, customizable interface, GIF playback, high-resolution display compatibility, and efficient navigation through keyboard shortcuts.
PhotoScape is a fun and easy photo editing software that enables you to fix and enhance photos.
Offers quick browsing and display of various image formats, basic editing tools like crop, rotate, lossless JPEG manipulation, folder browsing as thumbnails or slideshows, supports XCF, drag-and-drop, metadata viewing, KDE integration, and plugin extensions.
PicView is a fast, free and fully customizable picture viewer for macOS and Windows 10/11. It supports virtually all image file types, including (animated) WEBP, (animated) GIF, SVG, AVIF, HEIC, PSD and many others.
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