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Oxipng vs WP Smush

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

Oxipng icon
Oxipng
WP Smush icon
WP Smush

Oxipng vs WP Smush: The Verdict

Last updated: May 2026 · Comparison by Sugggest Editorial Team

Feature Oxipng WP Smush
Sugggest Score — —
Category Photos & Graphics Wordpress Plugins
Pricing Open Source Freemium

Product Overview

Oxipng
Oxipng

Description: Oxipng is an image optimization tool for PNG files. It can optimize PNGs losslessly to reduce file size by removing unnecessary metadata and optimizing compression settings.

Type: software

Pricing: Open Source

WP Smush
WP Smush

Description: WP Smush is a popular WordPress plugin used to optimize images. It compresses images to reduce file sizes without sacrificing quality, improving site speeds. WP Smush is free and automatically smushes images on upload.

Type: software

Pricing: Freemium

Key Features Comparison

Oxipng
Oxipng Features
  • Lossless compression of PNG files
  • Removes unnecessary metadata
  • Optimizes compression settings
  • Multithreaded for faster optimization
  • Command line interface
WP Smush
WP Smush Features
  • Lossless image compression
  • Lazy loading for images
  • Bulk smushing of existing images
  • Automatically smush images on upload
  • Integration with NextGen Gallery plugin
  • Ability to set maximum image quality
  • Smush CDN for faster delivery
  • WebP image support
  • Smush stats to track savings

Pros & Cons Analysis

Oxipng
Oxipng
Pros
  • Greatly reduces PNG file sizes
  • Lossless optimization preserves image quality
  • Easy to automate and integrate into workflows
  • Actively maintained and updated
Cons
  • Command line only, no GUI
  • Slower than lossy PNG optimization
  • Limited to PNG files only
WP Smush
WP Smush
Pros
  • Greatly improves page load speeds
  • Easy to setup and use
  • Works automatically without configuration
  • Free version available with robust features
  • Significant savings on image file sizes
  • Seamless integration with WordPress
Cons
  • Can be resource intensive on very large sites
  • No control over individual images in free version
  • Must pay for advanced features like WebP conversion
  • Requires an active subscription for pro features

Pricing Comparison

Oxipng
Oxipng
  • Open Source
WP Smush
WP Smush
  • Freemium

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Learn More About Each Product

Oxipng
Oxipng
Reviews, pricing & alternatives →
WP Smush
WP Smush
Reviews, pricing & alternatives →

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