| #1 | Modern Image Formats | 100 | | 1 | 100k+ | | | readme reserved contributors |
| #2 | HEIC Support | 99 | 1 | 2 | 5k+ | | | readme parser warnings too many tags |
| #3 | Plus WebP or AVIF | 98 | | 24 | 5k+ | | | Non-prefixed global variable |
| #4 | Image Quality Control | Still BE | 72 | 83 | 26 | 400 | | | unlink unlink |
| #5 | Kraken.io Image Optimizer – Compress, Convert to WebP & AVIF, Resize & Bulk Optimize | 67 | 293 | 80 | 10k+ | | | Text Domain Mismatch |
| #6 | AVIF Uploader | 51 | 49 | 44 | 4k+ | | | Missing Arg Domain |
| #7 | CompressX — AVIF & WebP Converter, Media Replacement | 35 | 34 | 424 | 40k+ | | | Missing nonce verification |
| #8 | QuickWebP – WebP & AVIF Image Optimizer, Compression & SEO for WordPress | 35 | 225 | 110 | 8k+ | | | Non Singular String Literal Domain |
| #9 | Avif Express | 35 | 26 | 167 | 400 | | | Input is not validated |
| #10 | Modern Images WP | 35 | 10 | 3 | 400 | | | Missing Translators Comment |
| #11 | Optimole – Optimize Images | Convert WebP & AVIF | CDN & Lazy Load | Image Optimization | 29 | 80 | 163 | 200k+ | | | Nonce verification recommended |
| #12 | LWS Optimize – All-in-One Speed Booster & Cache Tools | 27 | 35 | 534 | 10k+ | | | Non-prefixed global variable |
| #13 | Perfect Images: Regenerate Thumbnails, Image Sizes, WebP & AVIF | 25 | 158 | 118 | 60k+ | | | Non-prefixed global variable |
| #14 | ShortPixel Adaptive Images – WebP, AVIF, CDN, Image Optimization | 24 | 926 | 322 | 10k+ | | | Output is not escaped |
| #15 | Robin Image Optimizer – Unlimited Image Optimization, WebP & AVIF | 20 | 556 | 543 | 100k+ | | | Output is not escaped |
