ShortPixel review

ShortPixel is an image optimization service with WordPress plugins for reducing image file sizes. Its plugins can optimize new uploads automatically or process images already in the WordPress Media Library in bulk. You can choose lossy, lossless or Glossy JPEG compression, and convert JPG and PNG files to WebP or AVIF for compatible browsers.

ShortPixel also offers adaptive image delivery: it scales images to fit their containers and serves optimized versions through a global CDN. For larger jobs, it supports background processing with cron jobs and WP-CLI. The plugins can keep local backups of originals, which you can restore individually or in bulk. In short, ShortPixel handles both image preparation and delivery; it is not just a one-off compressor.

ShortPixel gives WordPress users several ways to balance file size and image quality, from lossy and lossless compression to Glossy JPEG. WebP and AVIF conversion, automatic optimization for new uploads and bulk processing of an existing library cover common migration needs. Adaptive images and CDN delivery are available if you also want ShortPixel to handle resizing and serving.

The pricing is flexible enough for both small sites and large libraries, according to the published pricing information:

• Free: 100 optimization credits and 500MB of CDN traffic per month, with unlimited websites.
• Unlimited: $10.99 monthly or $8.33 per month billed yearly, with unlimited optimization credits and 500GB of CDN traffic per month.
• One-time 30K: $19.99 for credits that never expire; it includes 150GB of CDN traffic.

A commenter on r/WordPress reports that optimized JPEG files stayed in place after disabling the plugin. That can make ShortPixel useful for a one-time cleanup, though format conversion and CDN delivery may depend on keeping related functionality enabled.

“Unlimited” refers to optimization credits, not every resource: the Unlimited and Unlimited AI plans list a 500GB monthly CDN traffic cap. The Free plan is much tighter at 100 credits and 500MB of CDN traffic per month. If you need AI features, Unlimited includes 100 AI credits per month; Unlimited AI costs $15.99 monthly or $13.33 per month billed yearly for unlimited AI credits. One-time 50K costs $29.99 and lists 250GB of CDN traffic, but the published pricing details do not say those credits expire or include AI credits beyond the listed 100 per month.

Watch credit use when optimizing a large library. A Reddit commenter reports that one-time packs charge one credit per image and thumbnail, and estimates WordPress may create six to eight sizes per upload. That can make the headline credit total go faster than the number of original photos suggests. For a small batch, a commenter recommends converting images yourself rather than paying for a plugin. ShortPixel also will not solve every page-speed problem; one Reddit commenter cautions that image optimization alone may not address a page loading too many resources.

ShortPixel has a free plan, two subscriptions, and two one-time credit packs. Free costs $0 and includes 100 optimization credits and 500MB of CDN traffic per month, with unlimited websites. Unlimited costs $10.99 monthly or $8.33 per month billed yearly. It includes unlimited optimization credits, 100 AI credits, and 500GB of CDN traffic. Unlimited AI costs $15.99 monthly or $13.33 per month billed yearly, with unlimited AI credits and the same stated CDN allowance. That is $5 more per month at either billing rate. The plans also list different FastPixel tiers: Plan A for Unlimited and Plan B for Unlimited AI; both include reGenerate Thumbnails PRO.

The one-time options cost $19.99 for 30,000 optimization credits or $29.99 for 50,000. The 30K credits never expire; both packs list 100 AI credits per month, with 150GB and 250GB of CDN traffic respectively. The pricing details list no add-ons. Check the traffic cap: “unlimited” applies to optimization credits, not CDN delivery.

Switching is most relevant for WordPress sites: ShortPixel’s plugins can optimize existing Media Library images in bulk and handle new uploads. The published feature details also say the plugin backs up originals locally and can restore images individually or in bulk, which gives you a way to recover those files. They don’t specify a full settings export, import path, or migration tool, so don’t assume your plugin configuration transfers to another service.

Before switching, check how image delivery is configured. ShortPixel’s adaptive images feature serves resized versions through a global CDN, and the published material doesn’t publish steps for transferring that setup or its CDN URLs. Confirm how you’ll replace delivery and preserve the formats and sizing your site needs. We weren’t given Reddit posts or comments, so we can’t substantiate a pattern of reasons users leave. The clearest reasons to reassess from the published details are a need for more than 500GB of monthly CDN traffic or a small image workload that doesn’t justify a paid plan.