WordPress plugin comparison
Mass Resizer vs Robin Image Optimizer
At a glance
- Robin Image Optimizer has more active installs: 100K+, against 50+ for Mass Resizer.
- On a typical day, Robin Image Optimizer is downloaded about 736 times, Mass Resizer about 4.
- Mass Resizer is rated higher: 5.0 out of 5 from 1 review, against 4.4 from 132 reviews.
- Robin Image Optimizer was updated more recently: Nov 3, 2026, against Dec 10, 2025 for Mass Resizer.
- Robin Image Optimizer is tested with a newer WordPress: 7.1.4, against 6.9.11 for Mass Resizer.
- Robin Image Optimizer has been around longer: since 2018, against 2024 for Mass Resizer.
Line by line
Robin Image Optimizer leads on 6 of 7 comparable lines.
| Metric |  Mass Resizer |  Robin Image Optimizer |
|---|---|---|
| Popular rank | #21,523 | #454 |
| Active installs | 50+ | 100K+ |
| Downloads, last 30 days | 59 | 42.6K |
| Rating | 5.0(1) | 4.4(132) |
| Support threads resolved | – | 100% |
| Tested up to | 6.9.11 | 7.1.4 |
| Search multiplier | ×0.21 | ×1.27 |
| Last release | 11 months ago | 6 days 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.
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