ShortPixel
Image optimization for WordPress and other publishing workflows, with bulk processing, compression settings, and WebP or AVIF conversion. A limited free allowance is available alongside paid plans.
About ShortPixel
ShortPixel is an image optimization service for websites and publishing workflows. It compresses images and PDFs to reduce file size and can convert JPG and PNG files to WebP and AVIF formats. Its WordPress plugin can process existing images in bulk and optimize new uploads automatically, and a separate Adaptive Images plugin scales images to the size of their display container and serves them from a CDN.
Pricing is freemium: a limited free allowance is available alongside paid plans. Images or URLs submitted through the web tool are processed by the ShortPixel service, and using the tool requires agreeing to its Terms of Service.
Key features
- Bulk optimization of existing images through a WordPress plugin
- Automatic optimization of new images after upload
- Lossy and lossless compression for JPG, PNG, GIF, and PDF files
- Conversion of JPG and PNG images to WebP and AVIF
- Adaptive Images plugin that scales images to their container size and serves them from a CDN
- Automatic PNG to JPG conversion and CMYK to RGB conversion
Best for: Website owners and editors, particularly WordPress users, who want smaller image files without resizing each image by hand.
Good for
- Offers both lossy and lossless compression for common image types.
- Can process existing images in bulk and optimize new uploads automatically once the plugin is installed.
- Supports conversion to WebP and AVIF, newer formats with smaller file sizes.
Watch out for
- The free allowance is limited, and continued use requires a paid plan.
- Uploading an image or URL means agreeing to the Terms of Service.
ShortPixel at a glance
- Website
- shortpixel.com
- Category
- Online Tools › Image Tools
- Type
- Online tool
- Pricing
- Freemium
- Platforms
- Web
- Open source
- Not stated
- Last checked
- Oct 7, 2026 · Online when checked
- Listed
- Oct 7, 2026
Guides for Image Tools
ShortPixel alternatives
Tools and sites you could use instead, ranked by how closely they match.
TinyPNG compresses AVIF, WebP, PNG, and JPEG images using a lossy image optimization engine.
Resize multiple images in a batch with Bulk Image Resize, which processes files without uploading them.
Caesium is a free, open-source online image compression tool with batch processing and preview options.
Konvert converts image formats such as HEIC, WebP, and AVIF in the browser without uploading files.
CompressOrDie provides browser-based compression for JPEG, PNG, GIF, WebP, SVG, and JPEG XL images.
RIOT optimizes images with batch processing and live comparison for JPEG, PNG, WebP, and GIF formats.
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ShortPixel FAQ
Can the WordPress plugin optimize images already in my media library?
Yes. The plugin can optimize past images with a single action and automatically optimizes new images after they are added.
Which file types can ShortPixel compress?
The service can compress JPG (including JPEG 2000 and XR), PNG, GIF (including animated GIFs), and PDF files.
Can I convert my JPG and PNG images to WebP or AVIF?
Yes. The service can convert JPG and PNG images to WebP and AVIF and make the converted versions available to browsers that support them.
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