ProRank vs Imagify
ProRank WebP 84.3% vs Imagify 67.1% — a 17pp advantage. Generous annual quotas instead of monthly credit limits, plus caching, SEO, and schema markup included.
ProRank Premium
- WebP 84.3% — 17pp better than Imagify
- AVIF 91.7% — best-in-class compression
- JPEG XL support (55.9%) — rare among WP plugins
- Annual quotas: 5K (Pro), 20K (Business), 100K (Agency)
- Includes caching, SEO, schema, sitemaps
Imagify
- Three compression modes (normal, aggressive, ultra)
- WebP and AVIF conversion included
- WebP compression 17pp worse than ProRank
- No JPEG XL support
- Credit-based: $9.99/mo for 20,000 images
- 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 | Imagify |
|---|---|---|
| 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
Imagify
Cloud API (by WP Media / WP Rocket)
Imagify is a cloud API from WP Media (the company behind WP Rocket). It processes images on their servers and returns optimized files. The free tier is limited to 20 MB/month, and paid plans are credit-based with monthly quotas. AVIF conversion is supported since version 2.2.
Feature Comparison
| Feature | ProRank | Imagify |
|---|---|---|
| Image Compression | ||
| JPEGli (Google encoder) | ||
| WebP conversion | ||
| AVIF conversion | ||
| JPEG XL conversion | ||
| Smart compression | ||
| Bulk optimization | ||
| Aggressive mode | ||
| Performance | ||
| Lazy loading | ||
| Page caching | ||
| Critical CSS | ||
| Script Manager | ||
| SEO | ||
| SEO titles & meta | ||
| Schema markup | ||
| XML sitemaps | ||
| Pricing | ||
| Yearly image quota | 5K–100K by plan | 20,000 images/mo |
| Free tier | Local optimization only | 20 MB/mo |
| Annual price | From $99/yr (5K images) | $119.88/year |
| Includes SEO + caching | ||
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)
Imagify
$9.99/mo for 20,000 images
- 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
Imagify offers simple image optimization but falls behind in compression quality — 17pp less on WebP. It's also credit-based with monthly limits. ProRank delivers better compression across all tested formats, adds JPEG XL support, and includes the full SEO and caching stack. One plugin replaces Imagify + WP Rocket + an SEO plugin.