How I Built a WordPress Image Optimization Plugin

php dev.to

WP Optimize Images

WordPress sites are slow because of unoptimized images. I built a plugin that fixes this automatically.

The Problem

  • Average WordPress page loads 2-3MB of images
  • Most users upload full-resolution photos from their phones
  • No one manually optimizes images before uploading

The Solution

A plugin that:

  1. Auto-compresses images on upload (50-80% size reduction)
  2. Bulk optimizes your entire media library
  3. Strips EXIF data to reduce file size
  4. Resizes oversized images to max dimensions

How it works

Uses PHP GD/Imagick to:

  • Convert to optimized JPEG/PNG
  • Strip metadata (EXIF, IPTC, XMP)
  • Resize based on configurable limits
  • Save to media library with optimized version

Installation

  1. Download the ZIP
  2. WordPress Admin → Plugins → Add New → Upload Plugin
  3. Activate and configure

Results

  • 50-80% file size reduction
  • No quality loss (visually identical)
  • Faster page loads = better SEO

Get it: WP Optimize Images ($9)


Built with PHP 7.4+, GD Library. WordPress 5.0+.

Source: dev.to

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