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gThumb vs ImageOptim

Professional comparison and analysis to help you choose the right software solution for your needs.

gThumb icon
gThumb
ImageOptim icon
ImageOptim

gThumb vs ImageOptim: The Verdict

⚡ Summary:

gThumb: gThumb is an image viewer and organizer for Linux. It allows you to browse and manage your photos in a simple interface, view images in fullscreen, rotate and crop images, reduce red-eye, and more. gThumb supports common image formats like JPEG, PNG, GIF, and RAW.

ImageOptim: ImageOptim is a free app that losslessly optimizes images by removing extra metadata and making compression more efficient. It works with common image formats like JPG, PNG, GIF, and SVG.

Both tools serve their respective audiences. Compare the features, pricing, and user ratings above to determine which best fits your needs.

Last updated: May 2026 · Comparison by Sugggest Editorial Team

Feature gThumb ImageOptim
Sugggest Score — —
Category Photos & Graphics Photos & Graphics
Pricing Free Open Source

Product Overview

gThumb
gThumb

Description: gThumb is an image viewer and organizer for Linux. It allows you to browse and manage your photos in a simple interface, view images in fullscreen, rotate and crop images, reduce red-eye, and more. gThumb supports common image formats like JPEG, PNG, GIF, and RAW.

Type: software

Pricing: Free

ImageOptim
ImageOptim

Description: ImageOptim is a free app that losslessly optimizes images by removing extra metadata and making compression more efficient. It works with common image formats like JPG, PNG, GIF, and SVG.

Type: software

Pricing: Open Source

Key Features Comparison

gThumb
gThumb Features
  • View images
  • Browse and manage photos
  • Simple interface
  • Fullscreen mode
  • Rotate and crop images
  • Red-eye reduction
  • Support for JPEG, PNG, GIF and RAW formats
ImageOptim
ImageOptim Features
  • Lossless image optimization
  • Removes EXIF metadata
  • Supports PNG, JPG, GIF and SVG formats
  • Drag-and-drop interface
  • Command line interface
  • Batch optimization
  • Integrates with macOS Finder

Pros & Cons Analysis

gThumb
gThumb
Pros
  • Free and open source
  • Lightweight and fast
  • Easy to use
  • Good set of basic image editing tools
  • Supports many common image formats
Cons
  • Limited advanced editing capabilities
  • Fewer features than some alternatives
  • Basic user interface
  • Lacks support for some RAW formats
ImageOptim
ImageOptim
Pros
  • Free and open source
  • Simple and easy to use
  • Significantly reduces image file sizes
  • Retains full image quality
  • Works offline
Cons
  • Mac only
  • Limited to basic optimization
  • No advanced editing features

Pricing Comparison

gThumb
gThumb
  • Free
ImageOptim
ImageOptim
  • Open Source

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Learn More About Each Product

gThumb
gThumb
Reviews, pricing & alternatives →
ImageOptim
ImageOptim
Reviews, pricing & alternatives →

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