--- title: "The best WordPress image optimization plugins in 2026" description: "Imagify, ShortPixel, EWWW, Optimole, Smush, Converter for Media: compression, WebP and AVIF, CDN, quotas and prices compared to pick your image plugin." language: "en" locale: "en-US" type: "article" canonical: "https://www.wp-masquerade.com/best-wordpress-image-optimization-plugins/" published: "2026-06-01T06:00:00+00:00" modified: "2026-11-05T20:53:46+00:00" translations: en-US: "https://www.wp-masquerade.com/best-wordpress-image-optimization-plugins/index.md" fr-FR: "https://www.wp-masquerade.com/fr/meilleurs-plugins-optimiser-images-wordpress/index.md" es-ES: "https://www.wp-masquerade.com/es/mejores-plugins-optimizar-imagenes-wordpress/index.md" de-DE: "https://www.wp-masquerade.com/de/beste-wordpress-plugins-bilder-optimieren/index.md" it-IT: "https://www.wp-masquerade.com/it/migliori-plugin-ottimizzare-immagini-wordpress/index.md" pt-BR: "https://www.wp-masquerade.com/pt/melhores-plugins-otimizar-imagens-wordpress/index.md" nl-NL: "https://www.wp-masquerade.com/nl/beste-wordpress-plugins-afbeeldingen-optimaliseren/index.md" --- # The best WordPress image optimization plugins in 2026 Six image optimization plugins compared on what matters: where processing happens, WebP and AVIF, free quotas, prices, limits, and how to then protect your images from hotlinking. Images are often the heaviest part of a WordPress page, and the main image usually decides the LCP, the loading speed metric Google measures. An optimization plugin compresses your images, converts them to WebP or AVIF and serves each browser the right format. Here are the six plugins that matter in 2026, compared on what really makes a difference: where the work happens, formats, pricing model and limits. **Our picks at a glance** - **Free with no quota**: EWWW Image Optimizer, compression on your own server. - **Easiest**: Imagify, WebP and AVIF even on the free plan, up to 20 MB a month. - **Large volumes**: ShortPixel, with one-time credit packs that never expire. - **Fully automatic with a CDN**: Optimole, images converted and resized on the fly. - **Conversion only, originals untouched**: Converter for Media. Method: features, quotas and prices taken from the vendors’ official pages and WordPress.org, in US dollars excluding tax and promotions. We have no commercial agreement with any of these vendors and did not measure compression rates ourselves. ## What WordPress already does without a plugin - **Multiple sizes and `srcset`**: every uploaded image is saved in several sizes, and the browser picks the one that fits the screen. - **Big image threshold**: above 2,560 pixels, WordPress creates a scaled-down copy that becomes the main image. - **Native lazy loading**: the `loading="lazy"` attribute is added automatically, and the first content image gets `fetchpriority="high"` so it shows sooner. - **WebP and AVIF accepted**: you can upload these formats if the server supports them. WordPress does not convert your existing JPEG and PNG files. What is missing: real file compression, automatic conversion to WebP and AVIF, and processing of images already online. That is the job of the plugins below. If a caching plugin already handles lazy loading, do not enable the feature a second time. ## How an optimized image reaches the visitor The browser announces the formats it understands. The plugin (or the CDN) sends back the lightest version it can display and keeps the original JPEG or PNG for the others. There are two methods: server rules that change the file served at the same address, or a `` tag that offers several sources. The first handles CSS background images better; the second also works on Nginx without configuration. *The browser announces the formats it accepts; the plugin or the CDN sends it the lightest one.* ## The six plugins compared | Plugin | Processing | WebP / AVIF | Free | Paid from | | --- | --- | --- | --- | --- | | Imagify | Vendor’s servers | Both, even free | 20 MB a month | $5.99/month ($4.99 billed yearly) | | ShortPixel | Vendor’s servers, optional CDN | Both | 100 credits a month | $9.99/month unlimited, packs from $19.99 | | EWWW Image Optimizer | Your server, or Easy IO (CDN) | WebP free, AVIF with Easy IO | Unlimited locally | $8/month ($80/year) | | Optimole | CDN, on the fly | Both | Up to 2,000 visits a month | Based on traffic, from 40,000 visits | | Smush | WPMU DEV servers | Both in Pro | Compression, images up to 5 MB | $50/year for one site | | Converter for Media | Your server, .htaccess rules | WebP free, AVIF in PRO | Unlimited WebP | $5/month (10,000 images) | *Vendors’ public prices, in US dollars excluding tax and promotions.* ### Imagify: the easiest to get started with Made by the WP Rocket team and installed on more than 900,000 sites, Imagify compresses your images on its servers and generates WebP, AVIF or both, including on the free plan. The free quota of 20 MB a month (about 200 images) is enough for a blog that publishes little; the Infinite plan at $11.99 a month ($9.99 billed yearly) removes every limit, for an unlimited number of sites. - **Strengths**: minimal settings, free AVIF, restore originals, good integration with WP Rocket. - **Weaknesses**: no built-in lazy loading (separate plugin), free quota quickly used up when you first optimize an existing site. ### ShortPixel: for large volumes ShortPixel (more than 300,000 installs) works with credits: an image and each of its sizes use credits. The unlimited plan costs $9.99 a month, but its one-time packs, which never expire, are often the cheapest way to optimize a large media library once. WebP and AVIF are generated next to the originals, with Cloudflare integration and an optional in-house CDN. - **Strengths**: packs that never expire, choice of compression levels, PDF optimization. - **Weaknesses**: 100 free credits go fast, because every image size counts. ### EWWW Image Optimizer: free and with no quota More than a million installs. In free mode, EWWW compresses images on your own server, with no account and no quota, converts to WebP and offers lazy loading. You need hosting that allows the PHP `exec()` function, which many shared plans block. The Easy IO subscription ($8 a month or $80 a year) adds a 50 GB CDN, AVIF and advanced compression. - **Strengths**: no image sent to a third party in local mode, no limits, many options. - **Weaknesses**: busy interface, server load during bulk optimization, AVIF only on the paid plan. ### Optimole: everything goes through the CDN Optimole (more than 200,000 installs) does not change your files: it serves images from Amazon CloudFront’s CDN, converted, compressed and resized to the exact screen size, with jQuery-free lazy loading. The free plan includes every feature up to 2,000 visits a month; beyond that, the price depends on traffic, starting at 40,000 monthly visits. - **Strengths**: no bulk optimization to run, images adapted to each screen, CDN included. - **Weaknesses**: cost tied to visits, dependence on the service (your pages call its addresses). ### Smush: the most installed With more than a million installs, Smush offers free lossy and lossless compression and lazy loading, but skips images larger than 5 MB. WebP, AVIF and the CDN are reserved for Smush Pro, from $50 a year for one site. - **Strengths**: free version with no image quota, clear interface. - **Weaknesses**: WebP, AVIF and CDN are paid, images over 5 MB skipped on the free plan. ### Converter for Media: conversion without touching the originals Converter for Media (more than 500,000 installs) does not compress your JPEGs: it creates WebP copies in a separate folder (`uploads-webpc`) and serves them through `.htaccess` rules at the same address. Your originals stay intact, which makes rolling back trivial. The PRO version adds AVIF, from $5 a month for 10,000 images, with one licence covering any number of sites. - **Strengths**: free and unlimited WebP, works with CSS background images. - **Weaknesses**: manual configuration on Nginx; originals are not compressed. ## How to choose - **Small site, few images a month**: free Imagify, or EWWW if your host allows `exec()`. - **A backlog of several thousand images**: a ShortPixel pack, then the free plan for new images. - **International audience or photo-heavy store**: Optimole or EWWW Easy IO, for the CDN. - **You want to keep your files intact**: Converter for Media, possibly with light compression when you export your images. - **Nginx hosting without access to the configuration**: prefer a `` tag method or a CDN. In every case, use a single image optimization plugin: two plugins that convert or rewrite the same files get in each other’s way. Measure LCP before and after in PageSpeed Insights; the other speed levers are covered in [our guide to optimizing WordPress SEO](https://www.wp-masquerade.com/optimize-wordpress-seo-guide/). ## Once optimized, protect your images from hotlinking [Hotlinking](https://www.wp-masquerade.com/glossary/hotlinking/) means another site displays your images by loading them straight from your server: your bandwidth pays for its pages. The Hotlinking tab of WP Masquerade Pro shows you which sites do it, with which images and at what volume. You can then allow or block each domain, or protect all your images: other sites then receive a “Protected image” picture, a transparent pixel or a 403 error. Search engines, social networks and feed readers stay allowed by default, so you lose no visibility. One limit to know: images served by a CDN (Optimole, EWWW Easy IO, ShortPixel CDN or Cloudflare’s cache) no longer reach your server, so protection must happen at the CDN. EWWW includes it in its Infinite plan, Cloudflare in Scrape Shield. If your images are still served by your server, with Imagify, local EWWW, Smush or Converter for Media, [WP Masquerade Pro’s hotlink detection](https://www.wp-masquerade.com/features/image-hotlink-protection/) takes care of it. ## Settings to apply after installation 1. Back up the media library, or turn on keeping the originals. 2. Choose light lossy compression: the difference is invisible to the eye on photos. 3. Enable WebP conversion (and AVIF if available) and automatic delivery. 4. Resize oversized images on upload (2,000 to 2,560 pixels wide is enough). 5. Run bulk optimization outside peak hours. 6. Clear the page and CDN caches, then check in the browser’s Network tab that images arrive as `image/webp` or `image/avif`. 7. Fill in alt text: useful for accessibility and for Google Images. *“How to create and deliver WebP files using ShortPixel Image Optimizer”, ShortPixel’s official channel: both delivery methods, picture tag and server rules, shown step by step.* ## Frequently asked questions **WebP or AVIF: which one should I choose?** AVIF usually produces lighter files, WebP is a little faster to generate. If your plugin offers both, serve AVIF to browsers that understand it and WebP to the others. **Should I keep the original images?** Yes, at least during setup: they let you roll back or re-optimize with a different setting. Delete them later only if you run short of disk space. **Is WordPress’s native lazy loading enough?** For most sites, yes. A plugin only adds value for background images, iframes or transition effects. **Does blocking hotlinking hurt Google Images?** No, as long as search engines stay allowed. WP Masquerade Pro allows Google, Bing and the other engines, social networks and feed readers by default. ### Key takeaways - WordPress already handles multiple sizes and lazy loading; it neither compresses nor converts your images. - Choose based on where processing happens: your server (EWWW, Converter for Media), an API (Imagify, ShortPixel, Smush) or a CDN (Optimole). - One image plugin only, and an LCP measurement before and after. - Free AVIF: Imagify, within the quota. - Protect your images from hotlinking, at the server or at the CDN that serves them. ## Your images, for your visitors WP Masquerade Pro spots the sites that display your images from your server, alerts you and blocks them if you decide to, without getting in the way of search engines or social networks. From €59 a year excl. VAT. [Discover hotlink protection](https://www.wp-masquerade.com/features/image-hotlink-protection/) [See Pro pricing](https://www.wp-masquerade.com/pricing/) ## Sources - Imagify: pricing (https://imagify.io/pricing/) - EWWW: Easy IO plans (https://ewww.io/plans/) - WordPress.org: ShortPixel Image Optimizer (https://wordpress.org/plugins/shortpixel-image-optimiser/) - Converter for Media: PRO version (https://mattplugins.com/products/webp-converter-for-media-pro) ## WordPress security, without the noise One e-mail when something matters: new attacks seen in the wild, plugin updates and practical guides. No spam, unsubscribe in one click.