Instant WebP Converter vs Smart Image Optimizer (2026)
Detailed side-by-side comparison of two WordPress plugins, based on real-time data from WordPress.org.
Quick Verdict
As of April 2026, Instant WebP Converter has a higher user rating (5/5 from 5 reviews) and leads in active installations (100 vs 0). Both are free WordPress plugins. Instant WebP Converter has accumulated 2.1K+ total downloads while Smart Image Optimizer has 214.
Detailed Comparison
| Metric | Instant WebP Converter | Smart Image Optimizer | |
|---|---|---|---|
| Rating | 5/5 | ◄ | N/A |
| Total Reviews | 5 | ◄ | 0 |
| Active Installs | 100 | ◄ | 0 |
| Total Downloads | 2.1K+ | ◄ | 214 |
| Support Resolution | N/A | N/A | |
| Last Updated | 1 year ago | ► | 7 months ago |
| First Released | 2024 | 2025 | |
| Age | 2 years | 1 year | |
| WP Requires | 5.0+ | 5.0+ | |
| PHP Requires | 7.2+ | 7.4+ | |
| Business Model | Free | Free | |
| Latest Version | 1.1 | 1.0 |
Rating Breakdown
Instant WebP Converter
Smart Image Optimizer
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Frequently Asked Questions
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Plugin data sourced from WordPress.org. Comparison and analysis by PluginSift.