WordPress plugin comparison
Image Optimizer vs Mass Resizer
At a glance
- Image Optimizer has more active installs: 1M+, against 50+ for Mass Resizer.
- On a typical day, Image Optimizer is downloaded about 5,796 times, Mass Resizer about 4.
- Mass Resizer is rated higher: 5.0 out of 5 from 1 review, against 1.7 from 81 reviews.
- Image Optimizer was updated more recently: Sep 22, 2026, against Dec 10, 2025 for Mass Resizer.
- Image Optimizer is tested with a newer WordPress: 7.0.8, against 6.9.11 for Mass Resizer.
Line by line
Image Optimizer leads on 6 of 7 comparable lines.
| Metric |  Image Optimizer |  Mass Resizer |
|---|---|---|
| Popular rank | #58 | #21,309 |
| Active installs | 1M+ | 50+ |
| Downloads, last 30 days | 174.1K | 60 |
| Rating | 1.7(81) | 5.0(1) |
| Support threads resolved | 100% | – |
| Tested up to | 7.0.8 | 6.9.11 |
| Search multiplier | ×1.28 | ×0.21 |
| Last release | 1 month ago | 11 months ago |
| Requires PHP | 7.4 | 7.4 |
From WordPress.org's public data, refreshed every night. Downloads are WordPress.org's official daily figures for the last 30 days.
Tags they share
More comparisons
Is one of these yours?
Track your plugin against its rivals every day: rank, installs, downloads, ratings and their releases, with alerts when anything moves.
Start free