ShortPixel Adaptive Images – WebP… vs WP Compress – Instant Performance &… (2026)
Detailed side-by-side comparison of two WordPress plugins, based on real-time data from WordPress.org.
ShortPixel Adaptive Images – WebP…
10K+ active installs
Free
WP Compress – Instant Performance &…
10K+ active installs
Free
Quick Verdict
As of April 2026, ShortPixel Adaptive Images – WebP… has a higher user rating (4.8/5 from 143 reviews) and leads in active installations (10K+ vs 10K+). Both are free WordPress plugins. ShortPixel Adaptive Images – WebP… has accumulated 1.5M+ total downloads while WP Compress – Instant Performance &… has 1.1M+.
Detailed Comparison
| Metric | ShortPixel Adaptive Images – WebP… | WP Compress – Instant Performance &… | |
|---|---|---|---|
| Rating | 4.8/5 | ◄ | 4.5/5 |
| Total Reviews | 143 | ► | 152 |
| Active Installs | 10K+ | 10K+ | |
| Total Downloads | 1.5M+ | ◄ | 1.1M+ |
| Support Resolution | 100% | N/A | |
| Last Updated | 2 weeks ago | ► | Yesterday |
| First Released | 2018 | 2018 | |
| Age | 8 years | 8 years | |
| WP Requires | 4.7+ | 6.5+ | |
| PHP Requires | 5.6.40+ | 7.4+ | |
| Business Model | Free | Free | |
| Latest Version | 3.11.2 | 7.00.01 |
Rating Breakdown
ShortPixel Adaptive Images – WebP…
WP Compress – Instant Performance &…
Download Trends
Over the past 30 days, ShortPixel Adaptive Images – WebP… averaged approximately 391 daily downloads while WP Compress – Instant Performance &… averaged 1,502.
Recent Reviews
ShortPixel Adaptive Images – WebP… Reviews
Shortpixel AI, a hassle free plugin that greatly improves PageSpeed score.
As the title says, Pagespeed Insights gave a score of 92 on mobile and 99 to 100 on desktop with no visible loss of quality on the web page. What I also like is the very reasonable one time pricing an
Great plugin and great team!
I’ve recently added SPIO across all our WordPress sites. (I work for a NFP managing 10 of their sites.) I’m impressed by ShortPixel’s compression and performance. Adrian and the team have offered grea
Slowed my site until I deleted it and removed DB Table.
Not here to diss you guys. Your image optimiser plugin is great!! But this one, it didn’t speed up my site, but rather made it super slow on first load. Maybe my error even. BUT when I turned off plug
WP Compress – Instant Performance &… Reviews
Does Not serve modern image formats for all
Does not convert .jpg to modern image formats like .webp in all environments This topic was modified 2 weeks, 3 days ago by jtohme.
Fantastic plugin & helpful support
I’ve used WP Compress for a over a month now and safely say it’s truly worthy of 10 stars if I could rate it that. Websites that previously felt like they crawled are now cruising faster than I could
Really helps our agency!
We’ve tried other performance plugins but nothing has compared with as many agency features as WP Compress. Thank you for fast speeds, unlimited websites and easy management!
More Image Optimization Worth Comparing
Top alternatives in the same category as ShortPixel Adaptive Images – WebP… and WP Compress – Instant Performance &…
Automatically resize, optimize, and convert images to WebP and AVIF. Compress images in bulk or on upload to boost your WordPress site performance.
Optimize images in 1‑click: compress, resize & convert to WebP/AVIF - free up to 20MB/month. Enjoy the easiest WordPress image optimizer to set up.
Compress and optimize images, enable lazy load, serve WebP & AVIF, and speed up your site with a global image CDN.
Speed up your website by using our WebP & AVIF Converter. Optimize images and serve WebP and AVIF images instead of standard formats!
Optimize images & PDFs smartly. Create and compress next-gen WebP and AVIF formats. Smart crop and resize.
Automatically optimize images: bulk compression, lazy loading, WebP/AVIF conversion. With CloudFront image CDN to boost Core Web Vitals & conversions!
Frequently Asked Questions
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Plugin data sourced from WordPress.org. Comparison and analysis by PluginSift.