Best Free Image Compressors of 2025

TinyPNG (by Tinify) is a free image optimization service built for developers and designers. It uses smart lossy compression to reduce JPEG, PNG, WebP, and AVIF file sizes by up to 80% with no visible quality loss. That means faster load times, better SEO, and lower bandwidth. You can compress, convert, and resize images via a clean web interface or integrate it into your workflow with the API. SDKs are available for Python, Node.js, PHP, Java, Ruby, and .NET. WordPress plugin included, plus plenty of community-driven integrations. No tuning, no noise, Tinify just works. Whether you're optimizing a handful of images or processing millions, it scales effortlessly. All plans include a generous free tier, and support is quick when you need it. George the panda 🐼 approves.

Host, secure, and stream videos to millions or a select few in minutes with Gumlet Video. Build custom video processing and delivery solutions with Gumlet Video API. Automatically optimize and deliver images at scale across websites and apps with Gumlet Image. Trusted by over 10,000 businesses and creators worldwide, Gumlet handles 1.5 billion media files daily and achieves a remarkable 54% optimization rate. Gumlet Video: Streamline Video Delivery 1. Simplify custom video streaming with minimal coding. 2. Achieve superior compression without compromising video quality. 3. Streamline video management through a unified platform. 4. Harness automation via APIs, SDKs, and webhooks. 5. Unearth valuable video analytics for enhanced ROI. 6. RTMP Live Streaming at scale in minutes. Gumlet Image Optimization: Effortless Image Enhancement 1. Automatically resize and compress images. 2. Seamlessly integrate for superior UX and SEO benefits. 3. World’s first auto-responsive resize 4. AI automation to control every aspect of your image Gumlet was established in 2019 in Singapore by Aditya Patadia and Divyesh Patel, both of whom previously contributed to the success of Turing Analytics, a pioneering AI startup.

OnlineConvertFree offers a wide range of tools for converting files and documents efficiently. Currently, users can access the service interface in 15 different languages, catering to a diverse audience. Each day, tens of thousands of individuals utilize this platform for their conversion needs. The site, onlineconvertfree.com, boasts one of the most extensive lists of supported formats available. Before the recent update, the service was limited to converting document files (over 70 formats), images (more than 120 formats), audio files (15 formats), videos (32 formats), e-books, and archives, among others. Now, users can enjoy over 1500 conversion options completely free of charge, making it an invaluable resource for anyone in need of file conversion. This extensive variety ensures that virtually any file type can be transformed with ease, enhancing user experience significantly.

A faster page load means a better user experience, better search rank, and more page views. ShortPixel's advanced compression technology reduces the image size without affecting quality. This makes your pages load faster.

Experience instantaneous image modifications paired with automated optimization, complete with image URLs and a systematic approach for effective image management. Explore a diverse range of transformations in our Playground section to gain insight into each unique effect. Understand how various input parameters influence each transformation and achieve the results you seek. Our platform serves as a comprehensive solution for the automatic organization and transformation of images, ensuring an unparalleled quality experience. Seamlessly create, manage, and transform your images all in one place, enhancing efficiency and user satisfaction. Effortlessly create, move, and delete multiple files and folders through our user-friendly interface. Benefit from readily available image URLs that can be utilized across blogs, posts, and websites. Unlock access to an extensive suite of over 25 image transformations designed to elevate your images. Additionally, optimize your images to enhance your online experience while minimizing storage requirements, making your workflow smoother and more effective.

Introducing an innovative WordPress plugin and API for efficient image compression that operates automatically while safeguarding your data. This tool is perfect for editorial teams, photographers, and bloggers. Optimus achieves lossless compression for PNG files and slightly lossy compression for JPEGs uploaded to WordPress, all while ensuring that the visual quality of the images remains unchanged. In simpler terms, the appearance of the processed images stays identical to the original. The plugin optimizes not only the primary image but also all thumbnail previews associated with the uploaded media, setting it apart from desktop and online optimization tools like Photoshop, ImageOptim, JPEGmin, and TinyPNG, which only compress the original files as thumbnails are generated later. By compressing every preview image as well, Optimus effectively reduces file sizes without compromising the visible quality of images, making it a valuable asset for anyone looking to streamline their media management. This comprehensive approach ensures that your website runs efficiently without sacrificing image integrity.

We are the leading online platform for converting Portable Document Format (PDF) files. Our website enables users to create PDF-compatible files effortlessly, without the need for any specialized software. Simply upload a postscript-compatible file to our site and click on the link to generate your PDF. Our goal is to provide an easy solution for casual and moderate users alike to produce PDF files with minimal hassle. You can convert and combine JPG, PNG, and other image formats into PDF for free. Additionally, you have the flexibility to adjust border sizes, page dimensions, image alignment, and orientation according to your needs. Importantly, our service does not apply any watermarks. You can conveniently merge multiple images into a single PDF document in one go. We prioritize quality above all else; our sophisticated image converter ensures that the highest quality is maintained in your output files. This feature allows us to optimize file sizes for PNG, TIFF/TIF, WebP, and JPG/JPEG images while preserving their original quality. We strive to make the merging of image files as straightforward as possible, providing you with a single PDF file ready for download. Our commitment to user satisfaction means you can trust that your files will be handled with care and expertise.

Optimole can reduce the file size of your images by as much as 80% while maintaining their visual quality! It serves as a comprehensive image optimization tool tailored for WordPress and other platforms. The service works by processing images in real time, operating entirely in the cloud to avoid burdening your server. By automatically optimizing images, Optimole selects the appropriate size based on the visitor's browser and screen dimensions. It delivers images through a rapid image CDN and employs lazy loading techniques for efficient display. You can compare the original image on the left with its optimized counterpart on the right using the slider feature. By minimizing the space images occupy on your web server, Optimole enhances performance without compromising on quality. Since images can contribute to as much as 60% of a webpage's load time, optimizing them can significantly improve your site’s loading speed, potentially making it load twice as fast. This simple adjustment can lead to a better user experience and increased engagement on your website.

reSmush.it offers a no-cost API designed for optimizing images efficiently. This service has been integrated into popular content management systems like WordPress, Drupal, and Magento. Additionally, reSmush.it stands out as the leading image optimization API, having processed over 7 billion images to date, and it continues to be available completely free of charge. Its widespread adoption is a testament to its effectiveness and reliability in the realm of image processing.

Using IMGCentury requires no programming or computer skills! Follow these steps: Open IMGCentury.com on a new tab in any browser. The "Choose Image Button" is located inside the "Drag and Drop Box." Drag and drop images into the Drag and Dropbox to select the images you want to compress. The List of Images will appear in the working box once you have selected the image. The compression process will then begin. The initial compression value is set at 80%. This means that the output size and quality of the images are reduced to 80%. Click the Download button if you are happy with the results. You can also adjust the compression ratio using the slider bar located above the workspace. Once you've adjusted the compression to the new setting you don’t need to select the image again.

ImageKit offers a robust image management and delivery solution to over 15000 developers and companies around the world with a global network of image delivery locations spread across 200 edge delivery points and 6 processing locations. ImageKit.io provides a complete solution for image management and delivery on websites and mobile apps. It delivers high-quality visuals at a low cost without sacrificing performance. To use ImageKit's image delivery capabilities, all you need to do is to plug-in your existing storage. Real-time image optimizations such as smart cropping, watermarking and DPR transformations can be performed. Images will be delivered in the best format possible based on the device and browser of the user. ImageKit has been shown to reduce page weight by more than 30%, which results in a decrease in bandwidth usage. It also includes an Integrated Media library that allows you to upload, search, and organize assets for better team collaboration.

Introducing a straightforward API that allows you to convert files directly from your application, supporting hundreds of formats including documents, videos, images, audio, CAD files, eBooks, and more. With our extensive and user-friendly documentation along with sample code, you can begin converting files in no time—just follow our getting started guide to complete your first conversion in just a few minutes. This API can be utilized from desktop, web, or mobile apps, enabling you to convert files effortlessly with a single line of code. For high-volume users, we provide a generous set of bundled conversion credits in our monthly plans, offering discounts tailored to your usage needs. Our API is crafted to be developer-centric, featuring excellent documentation, straightforward code examples, and a support team made up entirely of developers, ensuring you can integrate it into your projects with complete assurance. Additionally, we are committed to continuously improving our API, ensuring it meets the evolving needs of developers and their applications.

FileZigZag is a complimentary online converter that accommodates an extensive array of formats, such as audio, video, images, documents, ebooks, and archives. Utilizing an advanced conversion engine, it ensures high-quality results without requiring any software installation on your computer. Users can effortlessly convert their files online at no cost, with support for a multitude of formats across documents, images, archives, ebooks, and both audio and video categories. The platform is committed to expanding its range of supported conversion formats, welcoming user suggestions for new additions. By clicking on a source format link, you can access a specific converter for that format, or by selecting a target format link, you can initiate a source-to-target conversion process. Our servers are equipped with industry-leading CPUs, allowing you to conserve your own CPU resources while we handle the conversion tasks efficiently. With our sophisticated algorithms tailored for optimal quality, you can trust that your files will be processed with care. Ultimately, FileZigZag stands out as a user-friendly solution for all your conversion needs.

Aspose.Total Compress can compress or zip files online quickly and securely. It can reduce file size without losing important data. The free app optimizes your document size by removing unnecessary information. This can make it easier to upload and share files, reduce download times, speed up email transmissions, and reduce download times. The app can compress many image and document types, including PDF, word processing and spreadsheet. It also supports audio, E-book and 3D Models. The app uses state-of the-art Aspose APIs and works seamlessly on all major platforms, including Windows, Mac, Android, iOS, and Windows. To compress a file, select the file you wish to compress and then press the compress button. After successful compression, you can download the file, view it and share it with others via Email. You can download the file, view it, or share it with others via email.

Transform, compress, and modify various multimedia formats (including MP4, MOV, MP3, WAV, PDF, PNG, JPEG) effortlessly online at no cost using our user-friendly converters for video, audio, and PDF files. You can enhance your videos by adding a watermark or logo in PNG format, making them perfect for social media. Our platform offers the ideal solution for resizing videos tailored for Instagram feeds, stories, and IGTV. Additionally, you can easily trim MP3 audio tracks with our online audio cutter. Merge several videos into one using our complimentary video joiner tool. You also have the option to remove EXIF metadata from images, which can include sensitive information like geolocation and copyright. For music lovers, our free MP3 joiner allows you to combine multiple tracks into a single file seamlessly. Similarly, you can merge several PDF documents into one with our free PDF joiner feature. If you have animated GIFs, our service lets you convert them into MP4 video files online without hassle. You can rotate your videos 90 degrees in either direction and flip them as needed. Our tools also allow you to compress video files while preserving quality, mute videos by eliminating audio tracks completely, and download MP4 videos from platforms like YouTube, Facebook, and Instagram with ease. Whether you’re a casual user or a content creator, our comprehensive suite of tools caters to all your multimedia editing needs.

Bandizip is a robust archiving tool that boasts incredibly fast processing speeds along with a range of user-friendly features. It is available at no cost, while its premium versions offer an array of advanced options. Compatible with Windows operating systems including 7, 8, 8.1, 10, and 11 across 32-bit, 64-bit, and arm64 architectures, it serves as a comprehensive solution for compression, decompression, browsing, and editing. The software allows extraction from over 30 different formats, such as RAR, RAR5, 7Z, and ZIP. Users can create password-protected archives and split them into multiple volumes for convenience. Its multi-core support enhances compression speed significantly, making it up to six times faster. Bandizip also integrates seamlessly with the Windows 11 context menu for easy access. Additionally, it helps users manage frequently used passwords for archive handling and can analyze corrupted ZIP files to recover as much intact data as possible. The program features an optimized brute-force search for quickly recovering lost passwords, as well as the ability to view image thumbnails within an archive without the need for extraction. To ensure safety, it includes a reliable antimalware scan that detects potential threats within archives, further solidifying its utility as a comprehensive archiving solution. Overall, Bandizip stands out as a valuable tool for anyone needing efficient file management and archiving capabilities.

Compress, encrypt, exchange, and back up your files effortlessly with support for more than 60 formats including ZIP, ZIPX, 7z, RAR, TAR, and beyond. Experience the highest possible compression efficiency using the PA format, which is complemented by FIPS 140-2 validated 256-bit AES encryption for robust security. PowerArchiver brings together a variety of essential tools into one comprehensive package, making it the fastest and most feature-rich file management solution available today. The Advanced Codec Pack (.PA) stands out as the leading format on the market, allowing users to encrypt, decrypt, sign, and verify data with various AES and OpenPGP options, all validated under FIPS 140-2 standards. This format not only provides the best compression but also includes data deduplication and highly secure encryption methods. Additionally, the software features a secure FTP client packed with capabilities, ensuring safe file transfers with FIPS certification. Users can also automate the compression and encryption of files created in Microsoft Office versions from XP to 2016. Furthermore, it allows access to six different cloud services without requiring the installation of their respective software, enhancing convenience. The full-featured Enterprise Backup suite includes shadow copy support, detailed logs, network backup capabilities, and much more, making data management seamless. Lastly, users can conveniently mount ISO images on a virtual drive without the hassle of burning them to physical media.

TwicPics delivers perfectly-sized media in real time to your websites and apps. This ensures that your users have the best possible experience. No matter what device or connection you use, your web pages load super fast. TwicPics is easy to set up and deploy. Its low-code responsive solution makes image processing simple. Your data transfers will be reduced by up to 94%, while images will load 3x faster. You don't have to compromise on web performance and visual quality. TwicPics makes your website beautiful and fast, every time. Perfectly sized images for every device, any connection, in real-time. Images can be resized, cropped, and compressed in milliseconds. Image size can be reduced by up to 75% without affecting quality. With a small footprint, intuitive API and an efficient front-end library. Images load faster when there is worldwide CDN connectivity. You don't need to manage multiple versions of the exact same image anymore. TwicPics allows you to select the largest and most detailed master.

This tool boasts numerous advantages such as occupying minimal space, providing a high compression ratio and speed, maintaining stable performance, and incorporating various compression algorithms. Additionally, it presents an array of compression formats to choose from. Users can also modify video resolution, crop clips, select desired output formats, and perform batch compression effortlessly. With cutting-edge compression technology, this file reducer ensures low system resource usage while delivering rapid compression speeds. In comparison to other similar software, ApowerCompress achieves superior compression rates and enhances output quality. If you have a large number of files to compress simultaneously, simply upload them in bulk, allow the tool to perform the compression, and subsequently download the finished files with ease. Overall, it streamlines the entire compression process, making it highly user-friendly.

The Pi7 image compressor tool can compress JPEG images down to 50kb. This tool can reduce the size of JPEG images to 50kb.

Effortlessly reduce image sizes while maintaining exceptional quality, Optimage stands out as a robust image optimization tool that consistently delivers the highest compression ratios while preserving visual integrity. This innovative software leads the pack in achieving visually lossless compression, setting new benchmarks in a wide array of third-party evaluations. Additionally, it offers the capability to resize and convert popular image and video formats, ensuring that professional photography standards are met. Designed with accessibility in mind, Optimage makes automatic image optimization available to everyone, contributing to its widespread adoption among users. With its advanced perceptual metrics and enhanced encoders, Optimage can achieve a remarkable reduction in image size by as much as 90% without compromising quality. Furthermore, the tool employs sophisticated algorithms for image reduction and data compression, solidifying its position as a top choice for those seeking effective image optimization solutions. As more people discover its benefits, Optimage continues to elevate the standards of digital imaging.

4K Image Compressor allows you to resize PNG files, JPEGs, and WEBPs with high-quality output. What 4K Image Compressor can do: Reduce the Image Size. Compress files to a certain size in megabytes or kilobytes. Compress in all popular formats. Upload images in different lossy and lossless format. Download compressed files in JPEG and PNG, etc. Resize Images in Bulk. Reduce the size of several images from MB down to KB within seconds. Bulk compress images to save time.

Optimizilla is a web-based image optimization tool that employs an effective combination of top-tier optimization techniques and lossy compression methods to reduce the file sizes of JPEG, GIF, and PNG images to their smallest viable dimensions while maintaining acceptable quality. Users have the convenience of uploading up to 20 images at once, and the platform cleverly assesses these images, minimizing their file sizes without compromising overall visual integrity. After the upload, individuals can interact with thumbnails in a queue to fine-tune quality settings, utilizing a slider to dictate the compression degree and gestures to visually compare the images. Once users are content with the adjustments, they have the option to download the compressed images either as a single ZIP file or one by one. Additionally, the service prioritizes user security by leaving the original files intact on the user's device and ensures that all uploaded content is automatically erased after one hour, providing peace of mind regarding data privacy. This dual focus on efficiency and safety makes Optimizilla a reliable choice for those looking to optimize their images.

Convert Eaze is a versatile web-based platform designed to help users convert, compress, and merge files effortlessly in just a few clicks. Supporting more than 150 formats and over 2,300 conversion options, it handles a wide range of file types including videos, audio, images, documents, and archives. The tool operates entirely online, eliminating the need for software downloads or installations, and delivers quick, secure results. Its user-friendly interface makes it suitable for various use cases, whether for professional tasks, educational purposes, or personal needs. Convert Eaze provides a cost-effective solution that doesn’t sacrifice speed or security. Users can expect consistent, high-quality output every time. The platform’s broad format support ensures flexibility for almost any file conversion task. It’s an ideal choice for those seeking hassle-free file management on the go.

Caesium Image Compressor is a powerful tool that enables users to significantly reduce image file sizes by as much as 90% while maintaining high visual quality, providing a free and open-source option that emphasizes both user-friendliness and efficiency. The software features an intuitive, real-time preview interface along with batch processing capabilities, making it ideal for photographers, bloggers, webmasters, businesses, and everyday users looking to optimize their image collections for storage, sharing, or online use without sacrificing visual integrity. Among its advanced functionalities are options for preserving metadata and supporting folder structures, which facilitate smoother workflows, while Linux and macOS users can take advantage of the command-line tool for quick, script-based compression tasks. Additionally, for users who need to process images rapidly or on an occasional basis, the online compressor allows for multiple images to be handled directly within the browser, eliminating the need for any software installation. Caesium is readily available as either an installer or a portable ZIP file for Windows 10 (build 1809 and above) and as a DMG file for macOS 10.15 or later, ensuring that it offers a seamless blend of accessibility and advanced functionality across different platforms. Overall, its combination of simplicity and powerful features makes Caesium an excellent choice for anyone looking to streamline their image management processes.