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Preview vs WP Smush

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

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Preview
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WP Smush

Preview vs WP Smush: The Verdict

Last updated: May 2026 · Comparison by Sugggest Editorial Team

Feature Preview WP Smush
Sugggest Score — —
Category Office & Productivity Wordpress Plugins
Pricing Open Source Freemium

Product Overview

Preview
Preview

Description: Preview is a free and open-source document viewer application for macOS. It allows quick viewing of multiple file formats including images, PDFs, Markdown files, Office documents, and more. Preview has basic editing capabilities and annotation tools for PDFs.

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

Preview
Preview Features
  • View PDFs, images, text files and more
  • Annotate PDFs with shapes, text boxes, signatures
  • Basic image editing tools
  • Fill out and sign PDF forms
  • Combine PDFs and export as PDF or other formats
  • Tabbed interface to view multiple files
  • Quick Look support to preview files
  • Built-in screen capture tool
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

Preview
Preview
Pros
  • Free and included with macOS
  • Fast and lightweight
  • Supports many common file formats
  • Useful annotation and editing tools
  • Easy to use interface
Cons
  • Limited functionality compared to paid alternatives
  • Lacks advanced PDF editing features
  • No OCR for scanning text in images
  • No collaboration tools
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

Preview
Preview
  • Open Source
WP Smush
WP Smush
  • Freemium

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Learn More About Each Product

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

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