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wp.org search vs our merit ranking: “convert webp”

wp.org orders by popularity, so a plugin a host bundled onto millions of sites, or a big-brand one that's slow and mediocre, can sit at the top. Our ranking is built to answer a different question: which of these is actually worth installing. How this works →

For “convert webp”, we agree with wp.org on the top plugin, and our order differs from theirs on 10 of the top 20. 2 plugins are pushed down for signals wp.org ignores: errors, a host-installed base, or removal risk.

wp.org search ranks on

Install count (uncapped), the raw star average, freshness, and support. Popularity dominates, so the biggest install base usually wins regardless of how it got there.

We add

A cap on the install boost, volume-weighted ratings, and signals wp.org can't see: whether it throws errors on current PHP, whether the install base is organic or host-pushed, and its risk of being pulled.

Ranked above its merit

Image Optimizer – Compress Images and Convert to WebP or AVIF shows at wp.org #6 but places #20 on merit, a gap of 14 places. Its 1M+ installs carry it up the search order; its 1.7★ average from 81 reviews, plus freshness and upkeep, place it lower on our volume-weighted scale.

Buried gem

Perfect Images: Regenerate Thumbnails, Image Sizes, WebP & AVIF places #9 on merit, 4.8★ from 279 reviews, but shows at wp.org #16. A smaller install base keeps it further down the default search order than its quality signals alone would.

merit plugin wp.org
1 Converter for Media – Optimize images | Convert WebP & AVIF 500K+ · 4.9★ (1106) wp.org #1 2 Smush – Image Optimization, Compression, Lazy Load, WebP & CDN 1M+ · 4.8★ (6053) wp.org #2 ↑2 3 ShortPixel Image Optimizer – Optimize Images, Convert WebP & AVIF 300K+ · 4.5★ (830) wp.org #3 4 Imagify Image Optimization: Optimize Images | Compress & Convert to WebP/AVIF 900K+ · 4.3★ (1656) wp.org #4 ↓2 5 Optimole – Optimize Images | Convert WebP & AVIF | CDN & Lazy Load | Image Optimization 200K+ · 4.7★ (640) wp.org #5 6 WP Fastest Cache – WordPress Cache Plugin 1M+ · 4.9★ (4228) wp.org #8 ↑1 2 too low 7 CompressX — AVIF & WebP Converter, Media Replacement 40K+ · 5.0★ (197) wp.org #9 ↓1 2 too low 8 WebP Express 300K+ · 4.4★ (162) wp.org #7 ↓1 1 too high 9 Perfect Images: Regenerate Thumbnails, Image Sizes, WebP & AVIF 60K+ · 4.8★ (279) wp.org #16 ↑1 7 too low 10 EWWW Image Optimizer 1M+ · 4.8★ (1842) wp.org #17 ↓1 7 too low 11 Kraken.io Image Optimizer – Compress, Convert to WebP & AVIF, Resize & Bulk Optimize 10K+ · 4.5★ (119) wp.org #14 ↓1 3 too low 12 Plus WebP or AVIF 5K+ · 4.6★ (26) wp.org #10 2 too high 13 TinyPNG Image Optimization – Image Compression JPEG & PNG | Convert to WebP & AVIF 100K+ · 4.5★ (181) wp.org #13 ↑5 14 Robin Image Optimizer – Unlimited Image Optimization, WebP & AVIF 100K+ · 4.4★ (131) wp.org #19 ↑1 5 too low 15 Modern Image Formats 100K+ · 3.6★ (26) wp.org #11 ↑1 4 too high 16 Cimo – Free Instant Image Optimizer & WebP Converter 10K+ · 4.9★ (20) wp.org #20 ↓5 4 too low 17 Images to WebP 9K+ · 4.4★ (32) wp.org #12 ↓1 5 too high 18 QuickWebP – WebP & AVIF Image Optimizer, Compression & SEO for WordPress 8K+ · 4.8★ (20) wp.org #23 ↓1 5 too low 19 Image Converter for WebP 1K+ · 5.0★ (4) wp.org #15 ↓1 4 too high 20 Image Optimizer – Compress Images and Convert to WebP or AVIF 1M+ · 1.7★ (81) wp.org #6 ↑1 14 too high 21 DropAvif Image Optimizer – Convert WebP & AVIF | Compress Images 80+ · 5.0★ (4) wp.org #22 ↓1 1 too low 22 PixelCraft with WebP 500+ · 5.0★ (3) wp.org #18 ↑1 4 too high 23 Designed2Use Convert to WebP/AVIF 30+ · 5.0★ (1) wp.org #21 2 too high 24 SlashImage – Image Optimizer: Compress Images, Convert WebP & AVIF 90+ · 5.0★ (1) wp.org #24

Merit ranking caps the install boost at 1M (wp.org leaves it uncapped), replaces the raw star average with a volume-weighted Bayesian score and a Wilson lower bound, and keeps wp.org's own freshness and compatibility decays. Method from the plugin-directory source; see Meta Trac #8298. Positions are tracked daily from the first visit to a keyword, so the small arrows show movement since tracking began.