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IrfanView vs OptiPNG

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

IrfanView icon
IrfanView
OptiPNG icon
OptiPNG

IrfanView vs OptiPNG: The Verdict

Last updated: May 2026 · Comparison by Sugggest Editorial Team

Feature IrfanView OptiPNG
Sugggest Score — —
Category Photos & Graphics Photos & Graphics
Pricing Open Source Free

Product Overview

IrfanView
IrfanView

Description: IrfanView is a free, open source image viewer, editor, organiser and converter program for Microsoft Windows. It supports a wide variety of image formats and basic image editing features like cropping, resizing and color adjustments.

Type: software

Pricing: Open Source

OptiPNG
OptiPNG

Description: OptiPNG is an open-source PNG optimizer that reduces the file size of PNG images while preserving transparency. It works by applying lossless compression and interpolation methods.

Type: software

Pricing: Free

Key Features Comparison

IrfanView
IrfanView Features
  • Supports a wide variety of image formats including JPEG, PNG, GIF, TIFF, BMP
  • Basic image editing tools like cropping, resizing, rotating, color adjustments
  • Thumbnail/contact sheet generator
  • Slideshow creator
  • Batch conversion/renaming of images
  • Plugins allow extending functionality
OptiPNG
OptiPNG Features
  • Lossless compression of PNG images
  • Removes unnecessary metadata
  • Optimization of IDAT chunk ordering
  • Interlacing optimization
  • Color palette optimization
  • Grayscale conversion
  • Bit depth reduction

Pros & Cons Analysis

IrfanView
IrfanView
Pros
  • Lightweight and fast
  • Intuitive and easy to use interface
  • Extensive format support
  • Free and open source
Cons
  • Limited editing capabilities compared to advanced editors
  • Fewer features than paid alternatives
  • Windows only
OptiPNG
OptiPNG
Pros
  • Significantly reduces PNG file sizes
  • Lossless optimization preserves image quality
  • Open source and free
  • Works on Linux, Mac and Windows
  • Easy to use with command line interface
  • Can process multiple PNG files at once
Cons
  • Command line only, no GUI
  • Fewer features than some paid PNG optimizers
  • Slower than some alternatives
  • Requires technical knowledge to use command line
  • Not ideal for optimizing PNGs in bulk

Pricing Comparison

IrfanView
IrfanView
  • Open Source
OptiPNG
OptiPNG
  • Free

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Learn More About Each Product

IrfanView
IrfanView
Reviews, pricing & alternatives →
OptiPNG
OptiPNG
Reviews, pricing & alternatives →

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