Kraken.io Image Optimizer – Compress, Convert to WebP & AVIF, Resize & Bulk Optimize vs TinyPNG – JPEG, PNG & WebP image compression

⚡ Compress, resize and convert your WordPress images to WebP, AVIF and more — automatically. Faster pages, smaller files, same quality. Slow pages cost you visitors, search rankings and sales — and over-sized images are almost always the culprit. Kraken.io Image Optimizer fixes that on autopilot: it compresses, resizes and converts every image you upload — and every thumbnail WordPress generates — so your whole site loads lighter and faster, without you lifting a finger. Every upload is sent to Kraken.io, one of the most advanced image-optimization APIs on the web, optimized in the cloud, and pulled straight back into your Media Library. No binaries, no command line, no server tweaks — install it, add your API key, and stop worrying about heavy images. At its heart is Kraken.io’s intelligent lossy engine: for every single image it finds the exact point where the file is as small as possible while staying visually indistinguishable from the original. Expect to cut 60% or more off your image weight — exactly the win Google PageSpeed and Core Web Vitals reward. From a personal blog to a busy WooCommerce store with tens of thousands of products, it’s an install-and-forget solution that just works. ✨ Why Kraken.io Intelligent lossy & lossless — pick maximum savings with no visible quality loss, or pixel-perfect lossless. Per-image JPEG quality and chroma subsampling control for power users. Convert between formats — turn uploads into WebP, AVIF, JPEG, PNG or GIF. Reach for next-gen WebP or AVIF for the biggest savings (and to clear Google’s “Serve images in next-gen formats” audit), or switch between the classics — whatever fits your site. Optimizes everything WordPress serves — the full-size image and every thumbnail size (thumbnail, medium, large, …) that actually reaches your visitors through responsive srcset. PDFs too, not just images — PDF files in your Media Library are compressed through the same Kraken.io engine, so documents download and embed faster. Smart resizing — cap oversized uploads to a maximum width/height; resized images are enhanced to stay sharp and avoid haloing. Bulk “Krak ’em all” — optimize your entire existing library from a dedicated Bulk Optimize screen or the Media Library bulk action, with live progress. A control panel that tells you everything — a Kraken.io summary panel on the Media Library, Add Media and Plugins screens (plus a Dashboard widget) shows your connection status, plan, quota usage, active settings and supported formats at a glance. Per-image savings & error badges — see exactly how much each image saved, right in the Media grid and list. Plays nice with your stack — works with multisite, page builders, CDNs and local/dev sites. Detects other optimizer plugins and offers one-click deactivation so they don’t fight over your images. 🖼️ Supported formats JPEG, PNG, animated GIF, WebP, AVIF, HEIC/HEIF and PDF. (For security, raw SVG upload is intentionally not enabled — see the FAQ.) ⚡ Built for Core Web Vitals Heavy images are the number-one cause of slow pages. By compressing every size, converting to WebP/AVIF and right-sizing oversized uploads, Kraken.io directly targets the audits that move your score: Properly size images, Efficiently encode images, Serve images in next-gen formats and Largest Contentful Paint. 🎛️ Your images, your control Choose intelligent lossy or lossless, globally. Convert uploads to WebP/AVIF/JPEG/PNG/GIF on the fly — synced live between the panel and settings. Preserve selected EXIF tags (Date, Copyright, Geotag, Orientation, Profile) or strip them for the smallest files. Auto-orient photos from phones and cameras by their EXIF orientation. Decide who can optimize — all logged-in users, authors and up, or administrators only. Pick exactly which image sizes to optimize (the large 1536×1536 and 2048×2048 retina sizes are off by default to save quota — turn them on if your theme serves them). Optimize on upload automatically, or defer and bulk-optimize later. 🔒 Private & secure by design Your API credentials are stored write-only and masked — they are never pre-filled into the page or exposed in your site’s source, so other users on the dashboard can’t read them. Every action is protected by nonces and capability checks, uploads are content-verified, and all optimization happens server-to-server with Kraken.io. No secrets ever reach the browser. 🚀 Get started for free Create a free Kraken.io account — no credit card required — and get testing quota to try the plugin and the rest of the Kraken.io toolset: A fully-featured optimization API with official libraries for PHP, Node.js, Python, Ruby, Java, Go and .NET Web Interface (free) and Web Interface PRO with resizing and sync-to-Dropbox URL Paster and Page Cruncher to optimize images in bulk from anywhere on the web Optimization history and stats, and Kraken.io Cloud Storage You can use a single API key across as many sites as you like — there is no per-site license. ★★★★★ Excellent option for image optimization “The real power of Kraken is their ‘intelligent lossy’ optimization. I use it on all my sites and have never once needed to roll back an image because of too much quality degradation. It is a perfect solution as is.” — collin ★★★★★ Quality results, quality service “The plugin works really well and effortlessly, and the support is prompt, thoughtful, and thorough. I’m hooked.” — illustrata ★★★★★ Optimize according to Google PageSpeed “Kraken was instrumental in optimizing images to comply with Google’s PageSpeed analyzing tool. Our travel blog now sports Google’s ‘mobile friendly’ tag for mobile searches.” — Walter Schaerer ★★★★★ Perfect solution to speed up site! “I love this plugin! All my questions are quickly responded to and I see a huge saving in image size without losing quality. Highly recommend!” — ezone69 Connect with Kraken.io Website: https://kraken.io Plans & pricing: https://kraken.io/pricing Twitter / X · Facebook · GitHub

The best & easiest image compression plugin for WordPress. Speed up your website by compressing and converting your images with TinyPNG for WordPress. Improve your websites’ performance by significantly reducing file sizes without noticeable quality loss. Support for WebP, AVIF, JPG and PNG formats. Start optimizing your images today to boost SEO, improve your PageSpeed scores, save bandwidth and enhance your website’s user experience. Why TinyPNG? Next-gen format conversion, convert images to WebP and AVIF for even smaller files (NEW) Smart compression algorithm, reduce image file sizes without visible quality loss Broad format support, supports AVIF, WebP, PNG, animated PNG (APNG) and JPG. Automatic image compression, compresses new images on upload. Bulk optimization, optimize your full media library in just one click. Individual image control, optimize a single image straight from your media library. Preserve meta-data, choose to retain copyright metadata, creation date and GPS location in your original images. Resize large images, automatically resize huge image uploads by setting a maximum width and/or height for more reasonable browser display. Custom thumbnail optimization, choose which image size should be processed. Advanced background processing, optimization run quietly in the background to speed up your workflow. Multisite support, use one API key across all sites. Detailed statistics, see how much file size you have saved by compressing your Media Library George the Panda, our lovely mascot brings joy and hugs. and much more… Convert to next-gen formats like AVIF and WebP With the TinyPNG WordPress plugin, you can easily convert your images to next-gen formats like AVIF and WebP. AVIF and WebP are modern image formats designed for the web. They are often smaller in size than older formats like JPEG and PNG, while keeping excellent image quality. WebP images are 25–34% smaller than JPEG (lossy) according to Google. AVIF can reduce image size by up to 50% compared to JPEG, often even beating WebP in compression. Google’s PageSpeed Insights and other tools strongly recommend serving images in AVIF or WebP. Most modern browsers (like Chrome, Firefox, Edge, and Safari) now fully support WebP and AVIF. That means you can safely serve these formats to most of your visitors. With the TinyPNG WordPress plugin, your images can be automatically converted to AVIF or WebP when you upload them. No extra steps are required. Optimizing all your images You can bulk optimize your existing JPEG, PNG, and WebP images all at once by going to Media > Bulk TinyPNG. Clicking on the big button will start compressing and converting, when needed, all unoptimized images in your media library. If you have more images than your free credits allow, the tool will show you an estimated cost to optimize your entire library. If you are interested, you can upgrade your account to the paid plan and optimize the full library all in one go. Prefer to stay on the free plan? No problem! The bulk optimization tool will simply process images until your free limit is reached. Compress for performance The Tinify optimization engine is more than just compression. It is built to deliver the best image performance for the web, without sacrificing visual quality. Here’s how it helps: Display JPEG images more quickly with progressive JPEG encoding. Color profiles are automatically translated to standard RGB color. Convert CMYK to RGB to save more space and add compatibility. Compatibility The TinyPNG plugin is fully compatible with WordPress Multisite. Next to this, TinyPNG for WordPress works smoothly with most themes and plugins. Here is a list of the popular plugins that have been tested to work smoothly with TinyPNG. WPML WooCommerce WP Retina 2x WP Offload Getting Started Install this plugin and follow the instructions to set up your account. No payment details are required. Learn more about the plugin with these step-by-step tutorials: How to set up the TinyPNG WordPress plugin? How to compress existing images with the WordPress plugin? Pricing You get 500 credits per month at no cost. With a regular WordPress installation, you can compress roughly 100 images per month. Please note that converting images to AVIF or WebP uses an additional credit per image size. This means with the conversion feature enabled, you can roughly compress and convert 50 images per month for free. The exact number depends on how many thumbnail sizes are generated by your theme or plugins. You can choose which of the generated thumbnail sizes should be optimized by going to Settings > TinyPNG page. You can upgrade to a paid plan to remove the limit and compress as many images as you like. Need more? Upgrade to a paid plan to remove the limit and compress as many images as you want. To view the pricing details, visit: tinify.com/developers/pricing Privacy At Tinify, we take your privacy seriously. Only you have access to the uploaded images. All images are stored for a maximum of 48 hours, after which they will be deleted forever. Contact us Got questions or feedback? Let us know! Contact us at [email protected] or find us on X: @tinypng. Contributors Want to contribute? Check out the Tinify WordPress plugin on GitHub.