ShortPixel compresses and converts images to WebP/AVIF to speed up WordPress sites. See features, pricing model, integrations, and FAQs before you sign up.
Researched and fact-checked by Bartu Cavusoglu · Updated August 6, 2026
Freemium — free plan plus paid credit-based tiers available as an unlimited monthly subscription or a one-time credit-pack purchase; annual billing includes two free months.
ShortPixel is an image optimization platform built by ID SCOUT SRL (Bucharest, Romania) that has been reducing website image weight since it launched its online service in July 2014 and its WordPress plugin that November. Its core product, the ShortPixel Image Optimizer WordPress plugin, automatically compresses existing and newly uploaded JPEG, PNG, GIF, PDF, and HEIC files using its SmartCompress technology, with a choice of Lossy, Glossy, or Lossless compression, plus automatic conversion to next-gen WebP and AVIF formats, AI-driven smart cropping for thumbnails, and one-click backup/restore of originals. Beyond WordPress, ShortPixel offers a separate Adaptive Images plugin that serves resized, optimized images from its own CDN, a command-line tool, a Drupal plugin, desktop apps (Mac, and an Archive Optimizer client), and a full developer stack for non-WordPress sites, including a Reducer/Post Reducer API, PHP and .NET client libraries, a Node.js SDK and Express middleware, and third-party wrappers for Ruby, Laravel, OpenCart, WoltLab, and Airtable. As of 2022 the company reported having optimized over 9 billion images for more than 500,000 customers. Pricing is credit-based with a free tier plus paid monthly-subscription or one-time credit-pack options (annual billing includes two free months); exact tier prices are not exposed in the site's publicly crawlable pricing content.
Key Features
SmartCompress Optimization — Compresses JPEG, PNG, GIF, PDF, and HEIC images using Lossy, Glossy, or Lossless algorithms to balance file size and visual quality.
WebP/AVIF Conversion — Automatically generates next-gen WebP and AVIF versions of images to further reduce page weight.
Automatic Backup & Restore — Backs up original images before optimizing and allows individual or bulk restoration from the WordPress admin interface.
AI Smart Cropping — Uses AI to generate subject-centered thumbnail crops automatically.
Adaptive Images CDN Delivery — A separate plugin that serves resized, optimized images directly from ShortPixel's CDN for faster delivery.
Developer API & SDKs — Offers a Reducer/Post Reducer API plus PHP, .NET, and Node.js client libraries for optimizing images outside WordPress.
Pros & Cons
Pros
Deep WordPress integration with automatic backup and one-click restore of original images
Supports modern WebP/AVIF conversion plus Lossy, Glossy, and Lossless compression modes for quality control
Broad developer surface (API, CLI, Node.js/PHP/.NET SDKs) for teams that need optimization outside WordPress
Long operating history (since 2014) with a large reported customer base
Cons
Detailed per-tier pricing is not clearly surfaced on the public pricing page, making cost comparison harder upfront
Credit-based pricing model requires estimating image volume in advance, which can be confusing for new users
Primary focus is WordPress/image-centric workflows, so it is a narrower fit for teams needing broader digital-asset management