| #1 | Robin Image Optimizer – Unlimited Image Optimization, WebP & AVIF | 20 | 557 | 541 | 100k+ | | | Output is not escaped |
| #2 | Imagify: Optimize Images for Top Speed (Compress & Convert to WebP/AVIF) | 21 | 420 | 861 | 1m+ | | | Non-prefixed global variable |
| #3 | ShortPixel Image Optimizer – Optimize Images, Convert WebP & AVIF | 22 | 1,044 | 799 | 300k+ | | | Non-prefixed global variable |
| #4 | Smush – Image Optimization, Compression, Lazy Load, WebP & CDN | 25 | 252 | 566 | 1m+ | | | Non-prefixed hook name |
| #5 | Image SEO – AI-Driven Image SEO Optimizer | 26 | 350 | 327 | 1k+ | | | Text Domain Mismatch |
| #6 | Optimole – Optimize Images | Convert WebP & AVIF | CDN & Lazy Load | Image Optimization | 29 | 80 | 162 | 200k+ | | | Nonce verification recommended |
| #7 | Converter for Media – Optimize images | Convert WebP & AVIF | 35 | 133 | 53 | 500k+ | | | curl curl setopt |
| #8 | Adaptive Images for WordPress | 37 | 51 | 75 | 3k+ | | | Output is not escaped |
| #9 | Squeeze – Image Optimization & Compression, WEBP Conversion | 41 | 18 | 71 | 2k+ | | | Nonce verification recommended |
| #10 | Compress, Resize & Lazy Load Images – WPvivid Image Optimization | 47 | 107 | 58 | 10k+ | | | Missing direct file access protection |
| #11 | SEO Image Toolbox | 62 | 19 | 14 | 1k+ | | | Output is not escaped |
| #12 | Kraken.io Image Optimizer – Compress, Convert to WebP & AVIF, Resize & Bulk Optimize | 67 | 293 | 80 | 9k+ | | | Text Domain Mismatch |
