ProRank vs EWWW
ProRank compresses JPEG 79.4% vs EWWW 62.4% — a 17pp advantage. Better compression across every format, plus page caching and SEO included.
ProRank Premium
- JPEG 79.4% — 17pp better than EWWW
- WebP 84.3% — 16pp better than EWWW
- AVIF 91.7% included in plan
- JPEG XL support (55.9%) — rare among WP plugins
- Includes caching, SEO, schema, sitemaps
EWWW
- Local tools available (jpegtran, pngquant)
- WebP conversion included
- AVIF available via paid Easy IO CDN
- JPEG compression 17pp worse than ProRank
- Premium Lossy mode requires $7/mo subscription
- No caching, SEO, or schema features
Key Findings
Visual Quality Comparison
Same image: original JPEG vs ProRank WebP. Drag the slider to compare.
Compression Face-Off
File size reduction (%) — higher is better. Tested with 3 Unsplash JPEGs (2400px wide).
JPEG
WebP
AVIF
JPEG XL
Format Support
| Format | ProRank | EWWW |
|---|---|---|
| JPEG (JPEGli) | ||
| WebP | ||
| AVIF | ||
| JPEG XL |
How They Work
ProRank
Cloud API (cjpegli + Sharp + cjxl)
- Google cjpegli for JPEG — highest quality per byte
- Sharp for WebP & AVIF — tuned quality offsets
- cjxl for JPEG XL — rare among WordPress plugins
- Smart compression adapts to image dimensions
EWWW
Cloud API + local tools
EWWW offers both local tools (jpegtran, pngquant) for basic lossless optimization and a cloud API for Premium Lossy mode at $7/mo. AVIF conversion is available through their Easy IO CDN service (paid add-on). The cloud compression is adequate but significantly behind modern encoders like cjpegli.
Feature Comparison
| Feature | ProRank | EWWW |
|---|---|---|
| Image Compression | ||
| JPEGli (Google encoder) | ||
| WebP conversion | ||
| AVIF conversion | Paid | |
| JPEG XL conversion | ||
| Smart compression | ||
| Bulk optimization | ||
| Local tools (jpegtran, etc.) | ||
| Performance | ||
| Lazy loading | ||
| Page caching | ||
| Critical CSS / UCSS | ||
| Script Manager | ||
| HTML minification | ||
| SEO | ||
| SEO titles & meta | ||
| Schema markup | ||
| XML sitemaps | ||
| Redirects manager | ||
| Pricing | ||
| Annual price | From $99/yr (5K images) | $7/mo ($84/yr) |
| Cloud compression | Pro+ plans (5K-100K/yr) | $7/mo extra |
| SEO + caching included | ||
| Local optimization (free) | ||
Features may vary by plan and version. Last verified February 16, 2026.
Pricing
ProRank Premium
Pro: 5,000 images/yr ($99), Business: 20,000/yr ($199), Agency: 100,000/yr ($399)
- Cloud image optimization (5K–100K/yr by plan)
- Page caching & critical CSS
- Complete SEO toolkit
- Schema markup (30+ types)
EWWW
$7/mo for Premium Lossy mode
- Image optimization only
- No caching
- No SEO features
- No schema markup
Methodology
All plugins tested at their maximum lossy/aggressive compression setting. Results represent average savings across 3 images. Each plugin's cloud API was used directly with default aggressive settings. ProRank uses cjpegli for JPEG, Sharp for WebP/AVIF, and cjxl for JXL.
The Bottom Line
EWWW is a reliable image optimizer with good local tools. But ProRank's compression is dramatically better — 17pp ahead on JPEG, 16pp on WebP — and includes AVIF, JPEG XL, page caching, critical CSS, and a complete SEO toolkit. Better compression, more features, one plugin.