Image Optimization - Optimize Images and Convert to WebP or AVIF vs Kraken.io Image Optimizer – Compress, Convert to WebP & AVIF, Resize & Bulk Optimize
Two WordPress plugins head to head: ranking, active installs, downloads and ratings, from our daily tracking of the WordPress.org directory.
These aren’t all alternatives to each other — they do different jobs — so this page compares popularity only, not features.
At a glance
Image Optimization - Optimize Images and Convert to WebP or AVIF leads the WordPress.org popular list today at #58, ahead of Kraken.io Image Optimizer – Compress, Convert to WebP & AVIF, Resize & Bulk Optimize at #1,572. Over the last 7 days Image Optimization - Optimize Images and Convert to WebP or AVIF held its place and Kraken.io Image Optimizer – Compress, Convert to WebP & AVIF, Resize & Bulk Optimize climbed 2 places. Image Optimization - Optimize Images and Convert to WebP or AVIF has the largest install base, roughly 100× the next: 1M+ active installs against 10K+ for Kraken.io Image Optimizer – Compress, Convert to WebP & AVIF, Resize & Bulk Optimize. Ratings: Image Optimization - Optimize Images and Convert to WebP or AVIF 1.7★ from 77 and Kraken.io Image Optimizer – Compress, Convert to WebP & AVIF, Resize & Bulk Optimize 4.5★ from 119 reviews.
| Metric | Image Optimization - Optimize Images and Convert to WebP or AVIF | Kraken.io Image Optimizer – Compress, Convert to WebP & AVIF, Resize & Bulk Optimize |
|---|---|---|
| Popular rank today | #58 ▬ | #1,572 ▲ 2 |
| Active installs | 1M+ | 10K+ |
| Downloads, last 7 days | 31,369 | — |
| Rating | 1.7★ (77) | 4.5★ (119) |
| Last updated | Jul 7, 2026 | Jun 22, 2026 |
| Current version | 1.7.6 | 3.0.3 |
| Best rank on record | #58 | #1,572 |
| Days in the top 50 | 0 | 0 |
| On WordPress.org since | Jan 2024 | Feb 2014 |
Highlighted cells mark the strongest figure in each row. Rank and installs are from the latest WordPress.org capture; downloads are the last seven captured days.
Ranking history Lower is better
Active installs
Downloads per day
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Frequently asked questions
Which is more popular, Image Optimization - Optimize Images and Convert to WebP or AVIF or Kraken.io Image Optimizer – Compress, Convert to WebP & AVIF, Resize & Bulk Optimize?
By active installs, Image Optimization - Optimize Images and Convert to WebP or AVIF: 1M+ sites run it against 10K+ for Kraken.io Image Optimizer – Compress, Convert to WebP & AVIF, Resize & Bulk Optimize, according to WordPress.org figures captured on September 14, 2026.
Which ranks higher on WordPress.org, Image Optimization - Optimize Images and Convert to WebP or AVIF or Kraken.io Image Optimizer – Compress, Convert to WebP & AVIF, Resize & Bulk Optimize?
Image Optimization - Optimize Images and Convert to WebP or AVIF, at #58 on the WordPress.org popular plugins list today, with Kraken.io Image Optimizer – Compress, Convert to WebP & AVIF, Resize & Bulk Optimize at #1,572. The ranking reflects recent installs and moves daily, which is why this page shows the history rather than one snapshot.
Are Image Optimization - Optimize Images and Convert to WebP or AVIF or Kraken.io Image Optimizer – Compress, Convert to WebP & AVIF, Resize & Bulk Optimize alternatives to each other?
Not all of them. Some of these plugins do different jobs and many sites run more than one. This page compares their popularity, not their features.
Where do these numbers come from?
WordPress.org publishes each plugin’s active install count and its position on the popular list. This site records both every day, along with per-day downloads and ratings, so the charts above show how the plugins have moved over time rather than a single day.