WordPress plugin comparison
Image Shift vs Kraken.io Image Optimizer
At a glance
- Kraken.io Image Optimizer has more active installs: 10K+, against 20+ for Image Shift.
- On a typical day, Kraken.io Image Optimizer is downloaded about 97 times, Image Shift about 2.
- Image Shift has no reviews yet.
- Kraken.io Image Optimizer was updated more recently: Jun 22, 2026, against Jan 24, 2026 for Image Shift.
- Kraken.io Image Optimizer is tested with a newer WordPress: 7.0.8, against 6.9.11 for Image Shift.
- Kraken.io Image Optimizer has been around longer: since 2014, against 2026 for Image Shift.
Line by line
Kraken.io Image Optimizer leads on 6 of 6 comparable lines.
| Metric |  Image Shift |  Kraken.io Image Optimizer |
|---|---|---|
| Popular rank | #28,655 | #1,581 |
| Active installs | 20+ | 10K+ |
| Downloads, last 30 days | 74 | 4.3K |
| Rating | No ratings | 4.5(119) |
| Support threads resolved | 0% | – |
| Tested up to | 6.9.11 | 7.0.8 |
| Search multiplier | ×0.12 | ×0.83 |
| Last release | 9 months ago | 4 months ago |
| Requires PHP | 7.1.0 | 5.6 |
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
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