Best Free Image Compressors of 2025

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.

86 Ratings

Starting Price: $10 / month

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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.

28 Ratings

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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.

3 Ratings

Starting Price: $9.99 per month

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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.

1 Rating

Starting Price: $29 per year

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XConvert

We are the web's premier online converter of Portable Document Format (PDF) files. Our site allows you to make a PDF-compatible file without loading any special software. All it takes to generate a PDF-compatible file is to upload a postscript-compatible file to our website and then click on the resulting link. Our aim is to make it simple for light and moderate users to generate PDF files. Convert and merge JPG, PNG, and other images to PDF online for free. Change border size, page size, image alignment, and orientation to fit your preferences. No watermark is added. Combine or merge a large number of photos to PDF document(s) at once. We don't compromise quality for anything. Our advanced image converter detects the best quality for your output files. This feature enables us to keep the best quality while reducing PNG, TIFF/TIF, WebP, and JPG/JPEG image file size. We do our best to separate all details need to merge Image files so you can just download single PDF file.

1 Rating

Starting Price: $4.99 per month

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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.

1 Rating

Starting Price: $19.08 per month

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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!

1 Rating

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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.

1 Rating

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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.

3 Ratings

Starting Price: $0

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ImageKit.io

ImageKit

With a global image content delivery network spread across 200 edge delivery locations and 6 processing locations, ImageKit serves robust image management & delivery solution for over 15000 companies & developers across the globe ImageKit.io is a complete image management and delivery solution for websites and apps to deliver high-quality visuals without compromising performance. All you would have to do is plug-in your existing storage or CMS/DAM instantly to leverage ImageKit's image delivery features within minutes. Perform real-time image optimizations and transformations like resizing, smart cropping, watermarking, DPR transformations, etc, and deliver images in the best format based on the user’s device & browser. The solution has proven to reduce page weight by over 30% which results in an overall reduction in bandwidth used.ImageKit also comes with an Integrated Media library that lets you upload, search, and organize your assets for better team collaboration

Starting Price: $0

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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

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FileZigZag

FileZigZag is a free online converter that supports a wide range of formats including audio, video, image, document, ebook, and archive. It uses a sophisticated conversion engine to deliver the best quality conversion. Also, you don't need to install any software in your computer. FileZigZag converts your files online for free, with support for documents, images, archives, ebooks, audio and video formats. FileZigZag supports conversion between a wide variety of different file formats. We work hard to add new conversion formats. Contact us if you would like to add a new format and we will do our best to add it. Click on a source format link to open a converter for that format, or click on a target format link to open a source-to-target converter. Our servers has industry-leading CPUs, so your can save your CPU power and let us do the work for you. We use sophisticated conversion algorithms specially designed to provide the best quality possible.

Starting Price: Free

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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. You

Starting Price: Free

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FileConverto

Convert, compress and edit multimedia files (MP4, MOV, MP3, WAV, PDF, PNG, JPEG) online for free with our easy-to-use video, audio, and PDF converters. Add a watermark or a logo (in PNG image format) to any video. Best way to resize a video for Instagram feeds, stories, and IGTV. An online audio cutter to cut MP3 audio tracks online easily. Free video joiner to merge multiple videos into a single video. Remove image EXIF metadata such as geolocation, copyright, etc. Free MP3 joiner to merge multiple MP3 songs into a single MP3. Free PDF joiner to merge multiple PDF documents into a single PDF. Easily convert an animated GIF image to an MP4 video file online. Rotate a video by 90 degrees counter and clockwise, and flip a video. Compress and reduce a video file size maintaining good quality. Mute a video by completely removing the audio tracks. Download MP4 videos from Youtube, Facebook, Instagram, etc.

Starting Price: Free

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Bandizip

Bandisoft

Bandizip is a powerful archiver that provides an ultrafast processing speed and convenient features. Available free of charge, its paid editions support a variety of advanced features. The supported OS is Windows 7/8/8.1/10/11 (32bit/64bit/arm64). All-inclusive compression/decompression/browsing/editing archiver. Extraction for 30+ formats, including RAR/RAR5/7Z/ZIP. Compressing an archive with password and multi-volume. Fast compression with multi-core. Windows 11 Context Menu support. Helps to manage and enter frequently used passwords for handling archives. Analyze a corrupted ZIP archive and collect uncorrupted data as much as possible. Recover an archive’s password with ultrafast speed by optimized brute-force search. View thumbnails of images in an archive without decompression. Detect malware in an archive by the safe and accurate antimalware scan. Up to 6 times faster compression using multi-core.

Starting Price: Free

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PowerArchiver

Compress, encrypt, exchange, and backup your data. Support for over 60 formats: ZIP, ZIPX, 7z, RAR, TAR, and more. Strongest possible compression with PA format. FIPS 140-2 validated 256-bit AES encryption! PowerArchiver combines many useful tools in a single package! Fastest and most feature-packed file management today! Advanced Codec Pack (.PA) is the most advanced format on the market. Encrypt, Decrypt, Sign and Verify in various AES and OpenPGP formats. FIPS 140-2 validated! Best format with strongest compression, data deduplication, and very secure encryption. Secure FTP client with all the features, including FIPS 140-2 validation! Automatically compress and encrypt files in Microsoft Office XP-2016. Access 6 different cloud services without the need to install their software! Full Enterprise Backup suite with shadow copy support, logs, network backup, and more! Mount ISO images in a virtual drive without having to burn them!

Starting Price: $22.25 one-time payment

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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

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ApowerCompress

Apowersoft

It has many great advantages including taking up little space, a high compression rate and speed, stable performance, and integrates multiple compression algorithms. Moreover, it offers many kinds of compression types. It also allows you to adjust video output resolution, crop video, select output format, batch compress files and so on. This file reducer adopts the most advanced compression technology so that it can make sure the consumption of system resources is low whilist the compression speed is fast. Compared to other similar compression programs, ApowerCompress can compress files at a higher rate and output them with the better quality. If you need to compress lots of files at the same time, you just need to bulk upload files, wait for the compression, and then download the files.

Starting Price: $19 per month

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Pi7 Image Tool

Pi7 Code Solutions

Compress JPEG images to 50kb using the Pi7 image compressor tool. Reduce the size of the JPEG image to 50kb with this tool. How to Compress JPEG to 50kb? With the Pi7 Image Compressor tool, you can compress your JPEG image to 50kb by following the steps given below:- 1) Open the "Pi7 Image Compressor" tool. 2) Enter 50kb In the input field. 3) Press the 'Compress' button and download the image. There is a variety of tools available online that can compress images to 50kb. But Pi7's image compressor provides some advantages over other image compressors. Our team designed an image tool according to the user's experience, so anyone can compress their JPEG to 50kb. Security of your jpeg files is our priority. When you upload a JPEG file on our server then after some time of compression that image will be deleted from the server automatically. All your personal document images are secure with us. Compress yo

Starting Price: 0

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Optimage

Automatically compress images achieving the highest compression ratio at consistent image quality. Optimage is a simple yet powerful image optimization tool that provides the highest compression ratio at consistent visual quality, implementing many best practices for using images on the web and mobile. It is the first tool to achieve visually lossless compression in a comprehensive set of third-party tests and the new state of the art in image compression. It can resize and convert common image and video formats, and keep the best quality required for professional photography. It is designed to make automatic image optimization accessible and inclusive to everyone. Thousands of people have been successfully using Optimage to optimize their images. Optimage uses novel perceptual metrics and improved encoders to reduce image size by up to 90% without losing visual quality. Optimage provides the highest compression ratio by using advanced image reduction and data compression algorithms.

Starting Price: $15 per month

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4K Image Compressor

Open Media

4K Image Compressor is a free cross-platform app that lets you optimize PNG, JPEG, HEIC, and WEBP images quickly and without quality loss. With 4K Image Compressor, you can: Reduce the size of an image by a desired number of percent or to a particular size in megabytes, kilobytes, or even bytes PNG, JPEG, HEIC, and WEBP are supported for optimization and conversion, and more are coming soon Batch compression is available to save your time You can upload images in lossless and lossy formats.

Starting Price: Free

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Optimizilla

SIA Webby

Optimizilla is an online image optimizer that uses a smart combination of the best optimization and lossy compression algorithms to shrink JPEG, GIF, and PNG images to the minimum possible size while keeping the required level of quality. Users can upload up to 20 images simultaneously, and the system intelligently analyzes the uploaded images, reducing them to the smallest possible file size without negatively affecting the overall quality. After uploading, users can click on thumbnails in the queue to adjust quality settings, using a slider to control the compression level and mouse or gestures to compare images. Once satisfied, users can download all compressed images as a ZIP file or individually. The service ensures safety by keeping original files untouched on the user's system and automatically deleting all uploaded data after one hour.

Starting Price: Free

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Convert Eaze

Convert Eaze lets you convert, compress, and merge files in just a few clicks. With support for 150+ formats and 2,300+ conversion options, it’s the ultimate tool for handling videos, images, audio, documents, archives, and more. No downloads, no delays — just a fast, secure, and low-cost solution you can trust. Whether for work, school, or personal use, Convert Eaze delivers reliable results every time.

Starting Price: $5.99 for 30 days

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Caesium Image Compressor

Saerasoft

Caesium Image Compressor lets you reduce picture file sizes by up to 90% without visible quality loss, delivering a free, open source solution designed for both simplicity and effectiveness. It offers a clean, real-time preview interface and batch processing so photographers, bloggers, webmasters, businesses, and casual users can optimize image libraries for storage, sharing, or web use while retaining visual fidelity. Advanced features include metadata preservation options and folder-structure support for streamlined workflows, and Linux or macOS users can harness the command-line tool for rapid, script-driven compression. For quick tasks or occasional use, the online compressor handles multiple images directly in your browser without any installation. Available as an installer or portable ZIP for Windows 10 (build 1809+) and as a DMG for macOS 10.15+, Caesium balances ease of use and advanced control across platforms.

Starting Price: Free

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Photo Compressor and Resizer

Wang YuFen

Photo Compressor and Resizer helps you quickly compress, resize, convert, and crop images while preserving quality and saving storage space. It uses intelligent lossy compression to selectively reduce color data, minimizing file size without visible degradation, and supports batch processing so you can compress multiple photos at once to a specified file size in KB or MB. The app offers two compression modes along with photo resizing functions to reduce or enlarge images and change resolution. Crop tools let you remove unwanted areas using a variety of aspect ratios, and conversion between JPEG, JPG, PNG, and WEBP formats is built in. Additional utilities include a color picker to extract hues from images and a Material Design color palette. By keeping the original photo intact until you choose to replace it, this free app streamlines image optimization for mobile devices and tablets without affecting picture quality.

Starting Price: Free

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Squoosh

Squoosh is an open source, client-side image compression web app from Google Chrome Labs that lets you make images smaller using best-in-class codecs. It supports a wide range of formats (MozJPEG, OptiPNG, WebP, AVIF, JPEG-XL, and more) via high-performance WebAssembly modules, offering sliders to adjust quality, resize dimensions, reduce color palettes, and apply advanced compression settings. The intuitive split-view interface lets you compare original and optimized images in real time, while drag-and-drop or paste functionality simplifies file input. As a Progressive Web App, it works offline after the first load, ensuring privacy and fast performance. Squoosh handles image resizing to preset resolutions or custom dimensions, color quantization, metadata stripping, and format conversion, all in the browser, so web developers, designers, and content creators can reduce page-load times and storage usage without sacrificing visual fidelity.

Starting Price: Free

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Compress Image

Double Ape

Compress Image – MB to KB is a user-friendly photo optimization app that helps you compress and resize your images without visible quality loss or complicated settings. You begin by selecting one or multiple photos, then choose from three modes. A live preview shows exactly how much disk space each image will occupy before you save, and batch processing lets you apply any mode across dozens of files at once. Additional features include automatic saving of originals until you choose to replace them, seamless resizing to custom dimensions, and format conversion between JPEG, JPG, PNG, and WebP. The app supports batch resizing and compression on both phones and tablets, offers EXIF-preservation options, and requires no permissions beyond storage access, making it a fast, free solution for freeing up space, sharing photos online, and managing large image libraries on mobile devices.

Starting Price: Free

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TinyImage

Hypermatic

TinyImage for Figma is a powerful plugin that lets you export compressed JPG, PNG, SVG, WebP, AVIF, GIF, and PDF files directly from Figma, reducing file sizes by up to 95% without any external uploads or quality loss, and download them straight to your computer. Everything runs entirely inside your Figma file for privacy and security, so no image data ever leaves your workspace. Beyond simple image compression, TinyImage can automatically downscale oversized image fills to their layer dimensions to optimize Figma file performance, create custom animated GIFs, WebPs, WebMs or MP4 videos from selected layers (with controls for speed, playback counts, smoothing and scaling), and generate super-tiny PDFs with page reordering, bleed and crop-mark options, ICC color profiles, password protection and RGB, CMYK or greyscale output. Advanced settings allow power users to convert between formats, add text or dynamic values to file names, and mix and match compression levels.

Starting Price: $16 per month

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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

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Filestar

Do anything to any file. Tens of thousands of skills at your fingertips. Quickly convert files in a few clicks. Choose from over 30 000 file conversions. Both common and unusual file formats. Single files or in bulk. Easily merge one or many files at once. Combine files for many different file types. Merge documents, video, audio, Visio or other file formats. Split large files with many pages into several separate ones. For text file formats like .pdf, .doc and .txt. Divide files and documents into parts. Change or alter files. Rotate, add filters, replace file names, add watermarks, add text to images, and much more. One at a time or many at once. Simply compress or reduce the file size of your files. Wide selection of file compression formats and zip options to choose from. Smoothly extract selected pages or elements from a document. Collect images out of a file, or get all images or text from a document.

Starting Price: $9 per month

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Best Free Image Compressors

Compare the Top Free Image Compressors as of July 2025

What are Free Image Compressors?

Gumlet

OnlineConvertFree

ShortPixel

Optimus Image Optimizer

XConvert

Optimole

reSmush.it

IMGCentury

TinyPNG

ImageKit.io

Zamzar

FileZigZag

Aspose.Total Compress

FileConverto

Bandizip

PowerArchiver

TwicPics

ApowerCompress

Pi7 Image Tool

Optimage

4K Image Compressor

Optimizilla

Convert Eaze

Caesium Image Compressor

Photo Compressor and Resizer

Squoosh

Compress Image

TinyImage

CloudConvert

Filestar

Best Free Image Compressors

Compare the Top Free Image Compressors as of July 2025

What are Free Image Compressors?

Gumlet

OnlineConvertFree

ShortPixel

Optimus Image Optimizer

XConvert

Optimole

reSmush.it

IMGCentury

TinyPNG

ImageKit.io

Zamzar

FileZigZag

Aspose.Total Compress

FileConverto

Bandizip

PowerArchiver

TwicPics

ApowerCompress

Pi7 Image Tool

Optimage

4K Image Compressor

Optimizilla

Convert Eaze

Caesium Image Compressor

Photo Compressor and Resizer

Squoosh

Compress Image

TinyImage

CloudConvert

Filestar

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