gThumb is not available for Mac but there are plenty of alternatives that runs on macOS with similar functionality. The best Mac alternative is digiKam, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 100 alternatives to gThumb and many of them are available for Mac so hopefully you can find a suitable replacement. Other interesting Mac alternatives to gThumb are XnView MP, nomacs, ImageGlass and qView.
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.
Comprehensive photo management software for viewing, batch converting, editing and resizing images and creating thumbnail sheets.
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.
A feature-rich, simple-to-use app seamlessly integrated with a clean, minimal and modern user interface.
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.
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.
Offers organization, viewing, and editing tools for digital images, supports over 700 RAW formats, enables metadata embedding and syncing, dynamic category and keyword filters, workflow optimizations, non-destructive edits, detailed image preview, and sharing options.
Desktop app for photo sorting on Windows & Mac, managing JPG+RAW files. Sort photos into folders using keys, providing easy navigation and clean interface without deletion, ensuring a focused experience with flexible viewing, safe storage, and no fluff.
Native macOS app for viewing, annotating, and editing images and PDFs, featuring tools for cropping, rotating, resizing images, rearranging pages, full-screen viewing, markup, document merging, batch conversion, and export in multiple formats.
Plug in your memory cards and start picking winners and deleting rejects almost instantaneously. Move from image to image without that annoying rendering delay. Add dynamic caption, copyright, and keyword information individually or in batches.
Waterfall-style image viewer for macOS, offering a smooth and immersive browsing experience.
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it does not allow to navigate to the next or previous image in a folder.