These 2 apps lead WordPress Plugin Directory's Free image optimization category as of July 2026 — ranked by user rating, review count, and audit score, refreshed every 24 hours from the canonical WordPress Plugin Directory marketplace listing.
Discover the top-rated free image optimization apps available on WordPress Plugin Directory. Rankings based on user ratings, review count, and market performance.
This is the curated shortlist — the top-ranked free image optimization apps. To browse every free image optimization app on WordPress Plugin Directory, see the full Free image optimization category.
This list ranks the top 2 WordPress Plugin Directory apps classified under Free image optimizationby the source marketplace's own taxonomy — apps appear here only because WordPress Plugin Directory itself tags them in this category, not because of any AppRanks editorial decision. Within the category set, ranking uses a Bayesian-ish blend of average rating × natural log of review count: the formula is rating × ln(reviewCount + 1), so a high-rating-low-review app doesn't leapfrog an established listing on a single 5-star outlier. The blend favors apps that are both well-reviewed AND have an established user base.
AppRanks does not invent a proprietary score for public surfaces — the rank shown mirrors the marketplace's published category position exactly, scraped on a 12-24 hour refresh cycle from the canonical WordPress Plugin Directory listing. The category lookup happens at request time and the page is cached at the edge for 1 hour to absorb traffic spikes; the underlying ranking data refreshes daily so the list stays accurate within one day of any source change. AppRanks does not editorially promote or demote apps based on advertiser or partnership status — the same blend formula applies uniformly across every app on this platform.
Ranks #1 in the WordPress Plugin Directory free image optimization category as a well-rated listing. Currently has a early-stage review volume (7 reviews, 4.4★ avg). Position holds for the trailing 30-day window.
Pick if: Pick this if you want an emerging free image optimization option — Opti MozJpeg Guetzli WebP ranks #1 on WordPress Plugin Directory and is still building review depth.
Same data as the ranked cards, condensed into a sortable-by-eye grid: rating × review depth × pricing tier across the top 2 free image optimization apps on WordPress Plugin Directory.
| # | App | Rating | Reviews | Pricing |
|---|---|---|---|---|
| 1 | Opti MozJpeg Guetzli WebP | 4.4★ | 7 | — |
| 2 | reSmush.it : The original free image compressor and optimizer plugin | 4.3★ | 162 | — |
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reSmush.it : The original free image compressor and optimizer plugin
Ranks #2 in the WordPress Plugin Directory free image optimization category as a well-rated listing. A growing review traction (162 reviews) with a 4.3-star average. Position holds for the trailing 30-day window.
Pick if: Pick this if you want an emerging free image optimization option — reSmush.it : The original free image compressor and optimizer plugin ranks #2 on WordPress Plugin Directory and is still building review depth.
Methodology details: /glossary/audit-score · /about.