Compare the Top Image Compression APIs in 2025
Image compression APIs provide developers with programmatic access to compress and optimize images automatically within applications, websites, or workflows. These APIs support various image formats such as JPEG, PNG, GIF, and WebP, offering configurable compression levels to balance file size and visual quality. By integrating image compression APIs, developers can reduce bandwidth usage, improve page load speeds, and enhance user experience without manual intervention. Many APIs also offer additional features like resizing, format conversion, and metadata stripping. They are widely used in e-commerce, media platforms, content management systems, and mobile apps to streamline image optimization. Here's a list of the best image compression APIs:
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1
Imagify
Imagify
Imagify is a powerful and easy-to-use WordPress plugin designed to optimize images and speed up your website. It automatically compresses, resizes, and converts images to modern formats like WebP and Avif with just one click. Created by the team behind WP Rocket, Imagify guarantees improved website loading times without sacrificing image quality. It enhances key performance metrics such as Google PageSpeed scores and Core Web Vitals. Imagify is ideal for users who want a quick and efficient way to compress large image files in bulk without any technical knowledge. Overall, it helps businesses improve SEO, user experience, and conversions by making images lighter and faster to load.Starting Price: $4.99 per month -
2
Gumlet
Gumlet
Host, secure, and stream videos in minutes with Gumlet Video. Build custom video processing and delivery with Gumlet Video API. Optimize and deliver images at scale with Gumlet Image. Trusted by 10,000+ businesses, Gumlet handles 1.5B media files daily with a 54% optimization rate. Gumlet Video: Streamline Video Delivery 1. Simplify video streaming with minimal coding. 2. Achieve high compression without quality loss. 3. Manage videos on a unified platform. 4. Automate via APIs, SDKs, and webhooks. 5. Gain video analytics for better ROI. 6. RTMP Live Streaming at scale in minutes. Gumlet Image Optimization 1. Auto-resize and compress images. 2. Integrate seamlessly for better UX & SEO. 3. World’s first auto-responsive resize. 4. AI automation for complete image control. Founded in 2019 in Singapore by Aditya Patadia & Divyesh Patel, who also built AI startup Turing Analytics.Starting Price: $10 / month -
3
OnlineConvertFree
OnlineConvertFree
OnlineConvertFree provides file and document conversion tools. At present, the service interface is available in 15 languages. Every day the service is used by tens of thousands of the users. The file conversion service onlineconvertfree.com has one of the largest lists of supported formats. Prior to the update, the service worked only with the document files (70+ formats), images (120+ formats), audio (15 formats) video (32 formats) , e-books, archives, etc. All 1500+ directions of conversion are available to the users for free. -
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ShortPixel
ShortPixel
A faster loading page means a more pleasant user experience, better search ranking and as a result, more page views. ShortPixel uses advanced compression technology that reduces image size without affecting the quality, thus making your pages load faster.Starting Price: $9.99 per month -
5
Optimus Image Optimizer
KeyCDN
Smart compression of images WordPress Plugin & API. Automatic. Protects your data. Ideal for editorial staff, photographers, bloggers. Optimus targets a lossless compression of PNG images and a slightly lossy compression of JPEG images of media uploaded to WordPress — while focusing on protecting your data. In plain terms: the visual appearance of treated images does not change in any way. The plugin slims down the original image and all preview images of an uploaded motif. An important difference to desktop and online optimization tools: Photoshop, ImageOptim, JPEGmin and TinyPNG only treat the original images, since thumbnails are only generated when that image is uploaded to WordPress. Optimus compresses all preview images as well (=thumbnails). Reduction of file size with no change in visible image quality.Starting Price: $29 per year -
6
Kraken.io
Kraken.io
Kraken.io is a robust, ultra-fast image optimizer and compressor with best-in-class algorithms. We'll save you bandwidth and storage space and will dramatically improve your website’s load times. Designers, Developers, WordPress and Magento users - even enthusiasts all over the world use Kraken.io. All plans start out as a FREE Account which comes with 100 MB of testing quota. No credit card is required to sign up.Starting Price: $5 per month -
7
Optimole
Optimole
Optimole makes your images weigh even 80% less while looking just as good! Optimole is your all-in-one image optimization solution for WordPress & beyond. It processes your images in real time and it’s fully cloud-based (doesn’t strain your server). Optimole takes your images and optimizes them automatically. Picks the right image size for the visitor's browser and viewport. Serves images via a fast image CDN. Uses lazy loading to display the images. Use the slider to see the original image on the left vs. its optimized version on the right. Optimole processes your images and reduces their weight (the amount of space they take up on your web server) without sacrificing quality. Images add up to 60% of the average webpage’s total load time. For that reason, by taking care of something as simple as optimizing them, you can get your site to load even twice as fast.Starting Price: $19.08 per month -
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reSmush.it
reSmush.it
reSmush.it is a FREE API that provides image optimization. reSmush.it has been implemented on the most common CMS such as Wordpress, Drupal or Magento. Moreover, reSmush.it is the most used image optimization API with more than 7 billions images already treated, and is still totally free of charge! -
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ImageOptim
ImageOptim
Make images load faster and save bandwidth. Improved compression enables you to use beautiful images without bogging down your site. Easily create responsive images and thumbnails with high quality resampling and compression tuned for desktop and mobile resolutions. Integrate easily without installing specialized software. Using cutting-edge technology is as easy as downloading an image. Process product photos on e-commerce sites to have competitive website performance, and ensure that high quality images are fast for mobile users too. Fast images increase conversions and improve SEO. Clean and compress user-uploaded images. ImageOptim API removes private metadata and converts images to formats and sizes optimized for the web. You'll get fast-loading images that meet your requirements without burdening your users with technicalities or file size limits.Starting Price: $12 per month -
10
IMGCentury
IMGCentury
Using IMGCentury is easy, and you don’t need much programming or computer knowledge! Follow the steps: First of all, Open IMGCentury.com in a new tab of any browser. Then, You can see the “Choose Image” button inside the “Drag and Drop Box.” You can choose the images that need to be compressed using the Choose Image button or Drag and Drop images inside the Drag and Dropbox. Once you choose the image, The List of images will appear on the working box, and the compression process will be initiated. Initially, the compression value has been set to 80%, and the output quality and size of the images will be compressed up to 80% of the input size. If you are satisfied with the quality of the result, you can click the Download button to download the images. Or else, you can adjust the compression ratio by using the sliding bar above the working space. Once you have adjusted the compression ratio to the new setting, you don’t need to re-chosen the image. -
11
TinyPNG
Tinify
TinyPNG (by Tinify) is a free image optimization tool trusted by developers and designers worldwide. It uses smart lossy compression to compress JPEG, PNG, WebP, and AVIF files by up to 80% without visible quality loss - boosting speed, SEO, and reducing bandwidth. Compress, convert, and resize images via our intuitive web app or powerful API. SDKs are available for Python, Node.js, PHP, Java, Ruby, and .NET. Includes an official WordPress plugin and a growing ecosystem of community-built integrations. Tinify is simple and accessible with no complex settings, no guesswork. It just works. Whether you're a beginner or building for scale, you get reliable results fast. All plans start with a generous free tier, and responsive customer support is here when you need help. George the panda 🐼 would be thrilled to see you give it a try.Starting Price: $0 -
12
Zamzar
Zamzar
One simple API to convert files from your application. 100s of formats supported - Documents, Videos, Images, Audio, CAD, eBooks and more. Our comprehensive, easy to use documentation and sample code will help you start converting files quickly - use our getting started guide to convert your first file within minutes. Use the API from your desktop, web or mobile application to convert files in one line of code. We offer large numbers of bundled conversion credits with our monthly plans, so if you are a high-volume user you can take advantage of discounts to match your needs. We designed our API to be developer-friendly with great documentation, clear code samples and a support team staffed entirely by developers - so you can use it with confidence.Starting Price: $25.00/month -
13
Aspose.Total Compress
Aspose
Aspose.Total Compress is a powerful must-have free solution that quickly and securely compresses or zips files online. It can be very helpful to reduce the file size without losing any important data. The free app optimizes the document size by clearing out the unnecessary information which can be helpful to easily upload and share files, speed up email transmission, reduce download times, and more. You can use the app to compress a large number of document and image types such as PDF, word processing, spreadsheet, presentation, CAD drawings, Audio, E-book, 3D Models, PNG, JPG, BMP, GIF, and many more. The app is built by using state-of-the-art Aspose APIs which smoothly works on all major platforms including Windows, Mac, Android, and iOS. To compress a file user needs to select the file of their choice and choose the degree of compression and press the compress button. After the successful compression, you can easily download the file, view it, or share it with others via email. YouStarting Price: Free -
14
TwicPics
TwicPics
TwicPics delivers perfectly sized media in real-time to your websites and apps to provide the best possible experience to all your end users. Your web pages load super-fast, no matter the device and the connection. Easy to set up, up, and fast to deploy, TwicPics makes image processing a breeze with its low-code responsive image solution. Your data transfers reduce by up to 94% while your images load 3x faster. Stop compromising visual quality and web performance. With TwicPics, your website is fast and beautiful, always. Perfectly sized images for any device, any connection in real-time. Images are resized, cropped & compressed in milliseconds. Reduce image size by up to 75%, with no loss of quality. Intuitive API and efficient front-end library, with a minimal footprint. Images load faster with worldwide CDN proximity. Stop managing multiple versions of the same picture anymore. With TwicPics, you just need the largest, most detailed master.Starting Price: €99 per month -
15
CloudConvert
Lunaweb
CloudConvert is an online file converter. We support nearly all audio, video, document, ebook, archive, image, spreadsheet, and presentation formats. To get started, use the button below and select files to convert from your computer. CloudConvert is your Swiss army knife for file conversions. We support nearly all audio, video, document, ebook, archive, image, spreadsheet, and presentation formats. Plus, you can use our online tool without downloading any software. CloudConvert has been trusted by our users and customers since its founding in 2012. No one except you will ever have access to your files. We earn money by selling access to our API, not by selling your data. Besides using open source software under the hood, we’ve partnered with various software vendors to provide the best possible results. Most conversion types can be adjusted to your needs such as setting the quality and many other options.Starting Price: $8.00/one-time -
16
imgix
Zebrafish Labs
Powerful image processing, simple API, imgix transforms, optimizes, and intelligently caches your entire image library for fast websites and apps using simple and robust URL parameters. We don’t charge to create variations of your Master Images. You can be as creative with the service as possible. Over 100 real-time image operations, plus client libraries and CMS plugins for easy integrations with your product. Serve optimized images to every device quickly with a worldwide CDN optimized for visual content. Browse, search, sort, and organize all of your cloud storage images. Resize, crop, and enhance your images with simple URL parameters. Intelligent, automated compression that eliminates unnecessary bytes. Customers see images fast thanks to imgix's caching and global CDN. Introducing imgix Image Management. Transform your cloud bucket into a sophisticated platform that allows you to finally see what your images can do for you.Starting Price: Free -
17
PixelBin
PixelBin
Real-time image transformations with automatic optimization, image URL, and storage for efficient image organization. Try out our variety of transformations in our Playground section to learn more about each transformation. Know how different input parameters are used in each transformation and get the output you desire. Single platform for organizing and transforming your images automatically to deliver an unmatched quality experience. Create, manage and transform your images with seamless experience on single platform. Create, move and delete multiple files and folders using our simplified interface. Provides ready-to-use image URLs which can be used in blogs, posts, and websites. Get access to our rich suite of 25+ image transformations to enhance your images. Optimize your images for improving your web experience and reducing your storage needs.Starting Price: $25 per month