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wp.org search vs our merit ranking: “jpeg to heic”

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 “jpeg to heic”, we agree with wp.org on the top plugin, and our order differs from theirs on 13 of the top 20. 1 plugin is 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 the install base is organic or host-pushed, and its risk of being pulled.

Ranked above its merit

HEIC to JPEG shows at wp.org #13 but places #20 on merit, a gap of 7 places. Its 1K+ installs carry it up the search order; its 3.0★ average from 2 reviews, plus freshness and upkeep, place it lower on our volume-weighted scale.

How this rank is calculated

Each plugin's merit score multiplies these inputs together: how recently it was updated, how current its "tested up to" WordPress version is, its install base (log scale, capped at 10 million), its support thread resolution rate, and a rating score. The rating score weights the star average by review volume against a sitewide prior, then scales it by the lower bound of the share of 4 and 5 star reviews. A plugin with 3.7 stars from tens of thousands of reviews can still outscore a 4.9 with a few dozen, because the small sample carries less certainty.

A health factor between 0.4 and 1.15 then adjusts that score for what wp.org's search can't see: PHP fatals or failed activations on a test install, PHP and WordPress compatibility, memory and page-speed footprint, suspicious review patterns, closure risk, and a large install base with very few reviews. Clean, adopted plugins earn a small lift.

A keyword ranking starts from wp.org's search order for the term, weighting each position by 1 divided by its place, then applies the merit correction and health factor above. Relevance to the keyword stays in the result, so the order can differ from the all-categories list on /best, which scores plugins with no search term.

Hover a row to see the main reason for its position.

merit plugin wp.org
1 ShortPixel Image Optimizer – Optimize Images, Convert WebP & AVIF 300K+ · 4.5★ (830) wp.org #1 2 Kraken.io Image Optimizer – Compress, Convert to WebP & AVIF, Resize & Bulk Optimize 10K+ · 4.5★ (119) wp.org #4 ↓1 wp.org ranks it 2 places below merit 3 Squeeze – Browser-Based Image Compression & WebP Converter (No API, No Limits) 3K+ · 5.0★ (6) wp.org #2 wp.org ranks it 1 place above merit 4 Alt Magic: AI Image Alt Text Generator for WP & Image Rename 2K+ · 5.0★ (19) wp.org #14 ↓1 wp.org ranks it 10 places below merit 5 WP-Force Images Download 90+ · 4.9★ (8) wp.org #10 wp.org ranks it 5 places below merit 6 Vanquish Upload Files for WooCommerce 30+ · 4.7★ (12) wp.org #12 ↑8 wp.org ranks it 6 places below merit 7 EnConvert HEIC to JPEG 10+ · 0.0★ (0) wp.org #3 ↑4 wp.org ranks it 4 places above merit 8 Restrict WP Upload Type 300+ · 5.0★ (4) wp.org #11 wp.org ranks it 3 places below merit 9 EnConvert JPEG to HEIC — · 0.0★ (0) wp.org #5 wp.org ranks it 4 places above merit 10 Real Simple Avatar 10+ · 5.0★ (1) wp.org #6 wp.org ranks it 4 places above merit 11 UWH Image Optimizer & Converter 100+ · 5.0★ (1) wp.org #7 wp.org ranks it 4 places above merit 12 Erdo Image Optimizer – Image SEO, AI Alt Text, Media Cleanup, WebP & AVIF 30+ · 5.0★ (3) wp.org #22 ↓18 wp.org ranks it 10 places below merit 13 Flux Media Optimizer – Image & Video Optimization by Flux Plugins 100+ · 5.0★ (1) wp.org #8 ↑1 wp.org ranks it 5 places above merit 14 ImageCraft – Image Optimizer, WebP/AVIF & AI Alt Text 10+ · 5.0★ (2) wp.org #17 ↓3 wp.org ranks it 3 places below merit 15 Web Pixel Studio Image Compressor 50+ · 5.0★ (1) wp.org #9 ↓1 wp.org ranks it 6 places above merit 16 ImReso: Unlimited Target-Size Image Compressor 30+ · 0.0★ (0) wp.org #15 ↑2 wp.org ranks it 1 place above merit 17 Tanupom In-Place Converter for WebP 20+ · 0.0★ (0) wp.org #18 ↑1 wp.org ranks it 1 place below merit 18 Opti Ninja Image Optimizer – Compress Images, WebP & AVIF 20+ · 0.0★ (0) wp.org #19 ↓3 wp.org ranks it 1 place below merit 19 Resize Image Before Upload 70+ · 5.0★ (1) wp.org #16 wp.org ranks it 3 places above merit 20 HEIC to JPEG 1K+ · 3.0★ (2) wp.org #13 ↓1 wp.org ranks it 7 places above merit 21 Stintlief WebP Converter 10+ · 5.0★ (1) wp.org #20 ↓5 wp.org ranks it 1 place above merit 22 SlashImage – Image Optimizer: Compress Images, Convert WebP & AVIF 90+ · 5.0★ (1) wp.org #21 ↓3 wp.org ranks it 1 place above merit 23 neo Replace – Simple replacement using drag & drop 80+ · 5.0★ (1) wp.org #23 ↓2 24 AI Auto Alt Text Generator 100+ · 5.0★ (1) wp.org #24 ↓2

Merit ranking caps the install boost at 10M (wp.org leaves it uncapped), replaces the raw star average with a volume-weighted 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.