WebP Express vs Image Source Overlay (2026)
Detailed side-by-side comparison of two WordPress plugins, based on real-time data from WordPress.org.
Quick Verdict
As of April 2026, Image Source Overlay has a higher user rating (5/5 from 1 reviews) while WebP Express leads in active installations (300K+ vs 50). Both are free WordPress plugins. WebP Express has accumulated 4.1M+ total downloads while Image Source Overlay has 3.3K+.
Detailed Comparison
| Metric | WebP Express | Image Source Overlay | |
|---|---|---|---|
| Rating | 4.4/5 | ► | 5/5 |
| Total Reviews | 160 | ◄ | 1 |
| Active Installs | 300K+ | ◄ | 50 |
| Total Downloads | 4.1M+ | ◄ | 3.3K+ |
| Support Resolution | 0% | N/A | |
| Last Updated | 2 months ago | ◄ | 2 years ago |
| First Released | 2018 | 2022 | |
| Age | 8 years | 4 years | |
| WP Requires | 4.0+ | 4.6+ | |
| PHP Requires | 5.6+ | 5.6+ | |
| Business Model | Free | Free | |
| Latest Version | 0.25.14 | 1.1.3 |
Rating Breakdown
WebP Express
Image Source Overlay
Download Trends
Recent Reviews
WebP Express Reviews
Good plugin
Good plugin. Thanks for the update.
Excelent and good free plugin
Excelent and good free plugin for convert images jpg/png a webp
Amazing
This stuff is the real deal: just an app that works, no hassling like premium versions or special features. Thank you.
Image Source Overlay Reviews
No reviews yet
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Frequently Asked Questions
Is WebP Express or Image Source Overlay more popular?
Which has better ratings — WebP Express or Image Source Overlay?
Are WebP Express and Image Source Overlay free?
Which plugin has better support — WebP Express or Image Source Overlay?
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Plugin data sourced from WordPress.org. Comparison and analysis by PluginSift.