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PNGGauntlet vs UPX

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

PNGGauntlet icon
PNGGauntlet
UPX icon
UPX

PNGGauntlet vs UPX: The Verdict

Last updated: May 2026 · Comparison by Sugggest Editorial Team

Feature PNGGauntlet UPX
Sugggest Score — —
Category Photos & Graphics Os & Utilities
Pricing Open Source Free

Product Overview

PNGGauntlet
PNGGauntlet

Description: PNGGauntlet is a free open source image optimizer that can losslessly compress PNG files. It aims to find the optimal compression for PNG images while maintaining compatibility.

Type: software

Pricing: Open Source

UPX
UPX

Description: UPX is an open source executable packer that can compress and optimize executable files for Windows, Linux, macOS, and other platforms. It works by analyzing executables, removing unused code and data, and compressing what remains. UPX aims to reduce file size while allowing compressed binaries to launch and run normally.

Type: software

Pricing: Free

Key Features Comparison

PNGGauntlet
PNGGauntlet Features
  • Losslessly compresses PNG files
  • Open source and free to use
  • Works on Linux, Mac and Windows
  • Command line interface
  • Supports various compression algorithms like zopfli, pngcrush, etc
  • Can optimize an entire folder of images at once
UPX
UPX Features
  • Compresses executable files
  • Supports Windows, Linux, macOS and other platforms
  • Open source and free to use
  • Removes unused code and data
  • Compressed binaries can still run normally

Pros & Cons Analysis

PNGGauntlet
PNGGauntlet
Pros
  • Greatly reduces PNG file sizes without losing quality
  • Free and open source
  • Cross-platform support
  • Automates PNG optimization
  • Actively developed and maintained
Cons
  • Command line only, no GUI
  • Requires some technical knowledge to use
  • Compression can be slow for large images
  • Limited to only PNG file format
UPX
UPX
Pros
  • Reduces file size significantly
  • Faster download and loading times
  • No runtime memory overhead
  • Compressed binaries are self-extracting
  • Retains original file permissions and attributes
Cons
  • Compression results vary
  • Incompatible with some anti-virus software
  • Not designed for already compressed files
  • Requires decompression before debugging/modifying
  • Limited to compressing executables

Pricing Comparison

PNGGauntlet
PNGGauntlet
  • Open Source
UPX
UPX
  • Free

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Learn More About Each Product

PNGGauntlet
PNGGauntlet
Reviews, pricing & alternatives →
UPX
UPX
Reviews, pricing & alternatives →

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