| #1 | WP Compress – Instant Performance & Speed Optimization | 23 | 3,053 | 2,384 | 10k+ | | | Non Singular String Literal Domain |
| #2 | ShortPixel Image Optimizer – Optimize Images, Convert WebP & AVIF | 22 | 1,044 | 799 | 300k+ | | | Non-prefixed global variable |
| #3 | Imagify: Optimize Images for Top Speed (Compress & Convert to WebP/AVIF) | 21 | 420 | 861 | 1m+ | | | Non-prefixed global variable |
| #4 | ShortPixel Adaptive Images – WebP, AVIF, CDN, Image Optimization | 24 | 926 | 322 | 10k+ | | | Output is not escaped |
| #5 | Robin Image Optimizer – Unlimited Image Optimization, WebP & AVIF | 20 | 557 | 541 | 100k+ | | | Output is not escaped |
| #6 | Smush – Image Optimization, Compression, Lazy Load, WebP & CDN | 25 | 252 | 566 | 1m+ | | | Non-prefixed hook name |
| #7 | ThumbPress – Compress Images, Manage Thumbnails, Detect Image Issues, WebP/AVIF, Lazy Loading, Hotlinking & More | 32 | 101 | 308 | 30k+ | | | Non-prefixed global variable |
| #8 | Kraken.io Image Optimizer – Compress, Convert to WebP & AVIF, Resize & Bulk Optimize | 67 | 293 | 80 | 9k+ | | | Text Domain Mismatch |
| #9 | QuickWebP – Compress / Optimize Images & Convert WebP | SEO Friendly | 36 | 172 | 108 | 8k+ | | | Non Singular String Literal Domain |
| #10 | QODE Optimizer | 74 | 1 | 249 | 20k+ | | | Non-prefixed global variable |
| #11 | Optimole – Optimize Images | Convert WebP & AVIF | CDN & Lazy Load | Image Optimization | 29 | 80 | 162 | 200k+ | | | Nonce verification recommended |
| #12 | reSmush.it : The original free image compressor and optimizer plugin | 25 | 155 | 69 | 100k+ | | | Output is not escaped |
| #13 | Converter for Media – Optimize images | Convert WebP & AVIF | 35 | 133 | 53 | 500k+ | | | curl curl setopt |
| #14 | Image Optimization For SEO | 56 | 116 | 69 | 3k+ | | | Non Singular String Literal Domain |
| #15 | AVIF Uploader | 51 | 50 | 44 | 4k+ | | | Missing Arg Domain |
| #16 | Squeeze – Image Optimization & Compression, WEBP Conversion | 41 | 18 | 71 | 2k+ | | | Nonce verification recommended |
| #17 | Image Optimizer – Optimize Images and Convert to WebP or AVIF | 87 | 14 | 24 | 1m+ | | | Missing Translators Comment |
| #18 | Specify Missing Image Dimensions | 45 | 21 | 12 | 1k+ | | | Unsafe printing function |
| #19 | Disable Bulk Smush Limit of Smush Image Optimization | 35 | 3 | 2 | 3k+ | | | Hidden files included |
| #20 | Image Regenerate & Select Crop | 99 | 3 | 1 | 8k+ | | | wp function not compatible with requires wp |
