ProRank vs Imagify: image compression compared
Imagify is a simple cloud image optimizer from the company behind WP Rocket. ProRank compresses images as part of a wider SEO and speed plugin. Here is how they compare, with our own compression test and its limits.
- Features and prices checked on .
- Compression test run by ProRank on , with Imagify 2.3.3.
ProRank and Imagify in brief
Imagify, from WP Media, compresses images in its cloud with Smart or Lossless modes and converts them to WebP and AVIF. The optimized files stay on your server, even if you later delete your Imagify account.
The free plan covers 20 MB of images a month, about 200 images; paid plans are sold by monthly data. Imagify needs an account, has no lazy loading, and has no caching or SEO features; WP Media sells caching separately as WP Rocket.
ProRank’s free plugin compresses images on your own server without an account, and its cloud optimizer, which the test used, comes with paid plans.
File size reduction in our test
Three 2400px photos, against the original JPEG. Higher means smaller files; the larger reduction is in bold.
| Output format | ProRank | Imagify |
|---|---|---|
| JPEG | 79.4% | Not tested |
| WebP | 82.7% | 73.7% |
| AVIF | 91.7% | Not tested |
| JPEG XL | 55.9% | Not tested |
- Of the one format both were tested on, ProRank made smaller files in WebP.
- One lab test by ProRank; visual quality was not scored. Details are below.
How the image test was run
- Run by
- ProRank, on 16 February 2026. This is our own test, not an independent one.
- Images
- Three 2400px-wide JPEG photographs (2,766 KB in total)
- Compression
- Each plugin’s own lossy compression; ProRank used its paid cloud optimizer (cjpegli for JPEG, Sharp for WebP and AVIF, cjxl for JPEG XL).
- Measured
- Size reduction against the original JPEG. Higher means smaller files; visual quality was not scored.
- Versions
- Imagify 2.3.3 (the current version is 2.3.5).
- Figures shown
- Our two records of this test disagree on some numbers. Where they do, this page shows the figure less favorable to ProRank.
- Raw files
- Not published.
- Imagify in this test
- No JPEG result was recorded for Imagify, so only WebP is compared.
Features compared
What each plugin offers today, and which ProRank plan you need for it. Imagify is checked against its own website and documentation.
| Feature | ProRank | Imagify |
|---|---|---|
| Compression | ||
| Lossy compression | Free plan | IncludedSmart mode |
| Lossless mode | Free plan | Included |
| WebP conversion | Free plan | Included |
| AVIF conversion | Free plan | Included |
| Bulk-optimize the media library | Free plan | Included |
| Where images live | ||
| Optimized files kept on your server | Free plan | Included |
| Works without an account or API key | Free planOn-server compression | Not includedCloud only, API key needed |
| CDN delivery | Free planYour own CDN; no ProRank CDN | Not includedRocketCDN sold separately |
| Lazy loading | Free plan | Not included |
| Beyond images | ||
| Page caching | Free plan | Not includedWP Rocket, same company |
| Critical CSS | Pro plan | Not includedWP Rocket, same company |
| SEO titles, meta and sitemaps | Free plan | Not included |
Checked on against Imagify’s own pages (version 2.3.5):
- Imagify on WordPress.org (version 2.3.5)
- Imagify pricing
- Imagify FAQ
- Imagify docs: lazy loading
- Imagify docs: AVIF
“Paid plan” means the feature needs Imagify’s paid version; “Paid add-on” means a separate paid product or service. “Not included” means the vendor’s own feature list and documentation did not offer it on that date. Rows we could not confirm are left out. ProRank’s plan labels come from our pricing page. Plugins change often; if you spot something out of date, tell us and we will correct it.
The image settings in ProRank
Image optimization sits with ProRank’s other speed settings and shows how much of your media library is converted and how much space it saved.
What each costs
Both have a starting point you can try first. Competitor prices are as shown on their own pricing pages on . Prices change and sale prices end, so check before you buy.
ProRank SEO
- Free
- Free, on WordPress.org
- Pro
- $99 a year, 1 site
- Business
- $199 a year, 5 sites
- Agency
- $399 a year, 25 sites
US dollars, excluding VAT, billed yearly. 30-day money-back guarantee. The test used ProRank’s cloud optimizer, which comes with paid plans: 5,000 images a year on Pro (up to 416 a month), 20,000 on Business and 100,000 on Agency. The free plugin compresses on your own server.
Imagify
Free version on WordPress.org. Paid version from:
$2.99 a month, billed yearly
Growth plan: 500 MB a month (about 5,000 images), unlimited sites. Imagify’s FAQ says it does not give refunds. Free: 20 MB a month (about 200 images).
Black Friday price (regularly $4.99 a month billed yearly), valid until 27 November 2026.
Try ProRank on your own images
The free plugin compresses images on your own server and converts them to WebP and AVIF, alongside page caching and the SEO tools.