ShortPixel
Image OptimizationImage compression API with WordPress integration for page speed
Overview
ShortPixel is an image optimization service that's been quietly solving page speed problems since 2014. Built by a Romanian team, it focuses on the technical side of image compression rather than fancy interfaces or marketing gimmicks. The service offers three compression algorithms, next-generation format conversion, and solid WordPress integration that actually works reliably.
What sets ShortPixel apart from competitors like TinyPNG is its API-first approach and comprehensive format support. While TinyPNG focuses on PNG and JPEG compression, ShortPixel handles WebP and AVIF conversion natively, making it more valuable for modern performance optimization. The WordPress plugin processes images automatically on upload and can bulk optimize existing libraries without the server timeouts that plague other solutions.
ShortPixel's pricing model is consumption-based rather than subscription-only, which makes sense for agencies and developers managing multiple sites with varying image volumes. The free tier provides 100 optimizations monthly, enough for small sites to test effectiveness before committing to paid plans.
Key features
Three Compression Types
Offers lossy, glossy, and lossless compression algorithms to balance file size reduction with visual quality for different use cases.
Next-Gen Format Conversion
Automatically converts JPEG and PNG images to WebP and AVIF formats for better compression without quality loss.
WordPress Plugin
Native WordPress integration that optimizes images on upload and can bulk process existing media libraries automatically.
API Integration
RESTful API allows developers to integrate image optimization into custom applications and automated workflows.
CDN Integration
Works with popular CDNs like Cloudflare and KeyCDN to serve optimized images from edge locations globally.
Adaptive Images
Delivers different image sizes and formats based on device capabilities and screen resolution for optimal performance.
EXIF Data Removal
Strips metadata from images to reduce file size and protect privacy while maintaining visual quality.
Backup System
Maintains original image copies allowing you to restore unoptimized versions if needed for quality comparisons.
Pricing
| Plan | Price | Includes |
|---|---|---|
| Free | $0 | 100 images/month, basic compression, WordPress plugin |
| Starter | $3.99/mo | 5,000 images/month, WebP conversion, CDN integration |
| Professional | $7.99/mo | 15,000 images/month, AVIF support, bulk optimization |
| Business | $15.99/mo | 50,000 images/month, API access, white-label options |
| Enterprise | Custom | Unlimited images, dedicated support, custom integrations |
FAQ
How much can ShortPixel reduce image file sizes?
ShortPixel typically achieves 50-90% file size reduction depending on the original image and compression type selected. Lossy compression provides maximum reduction while lossless maintains perfect quality.
Does ShortPixel work with existing WordPress images?
Yes, the WordPress plugin can bulk optimize your entire media library retroactively. It processes images in batches to avoid server timeouts and provides progress tracking.
What's the difference between lossy, glossy, and lossless compression?
Lossy provides maximum compression with slight quality loss, glossy offers balanced compression maintaining visual quality, and lossless reduces file size without any quality degradation.
Can I use ShortPixel with other performance plugins?
ShortPixel integrates well with caching plugins like WP Rocket and NitroPack. It handles image optimization while other plugins manage caching and minification.
Does ShortPixel support AVIF format?
Yes, ShortPixel supports AVIF conversion which provides even better compression than WebP. However, browser support for AVIF is still limited compared to WebP.
How does ShortPixel compare?
View all comparisons →Review Sentiment
60 reviews across 2 sources
Bottom line
One of the better values in image optimization. ShortPixel delivers best JPEG compression in independent tests for just $3.99/mo, earning a 4.6/5 rating. The downside: credit-based pricing can be confusing.
People love
- +Best JPEG compression in independent tests — 54% reduction vs competitors averaging 20-40%
- +Supports WebP and AVIF conversion with original backup preservation
- +WordPress plugin with 300K+ installs optimizes images automatically on upload
Common complaints
- –Credit-based pricing can be confusing — monthly quota resets whether used or not
- –Bulk optimization of large media libraries requires purchasing additional credits
- –Free tier limited to 100 images/month — insufficient for active publishing sites
Last updated Feb 2026