Image Compressor
Reduce image size from MB to KB while keeping great quality. 100% private: your images never leave your device.
Free Online Image Compressor – Reduce Image Size from MB to KB
Large photos slow down websites, fill up your storage, and often fail to upload when a form has a strict size limit. Our free online image compressor solves this problem in seconds. It reduces image size from megabytes to kilobytes while keeping your pictures sharp and clear, so you can compress JPG, PNG, and WebP files without any visible loss in quality. There is no signup, no watermark, and no limit on how many images you can use.
The tool works directly inside your browser. It resizes and re-encodes each image using smart quality settings, and you stay in control the whole time. You can pick a quality level, set an exact target size in KB, or limit the maximum width of the image. Many users shrink a 5 MB photo to under 300 KB, and the difference is almost impossible to notice on a phone or laptop screen. Because everything runs locally on your device, your images are never uploaded to any server, which keeps your files private and safe.
Why Should You Compress Images?
Smaller images make your website load faster, and page speed is an important ranking factor in Google search. Lighter pictures improve your Core Web Vitals, reduce bounce rate, and give visitors a better experience, especially on slow mobile connections. Bloggers, students, designers, photographers, and online sellers all benefit from compressing images. It also helps you send photos by email, save mobile data, and meet upload limits on job portals, government websites, and social media platforms. Whether you are publishing a blog post, submitting a visa application, or sending product photos to a marketplace, compressing images first is a smart habit that saves time and avoids rejections.
Quality, Target Size, or Both — You Choose
Most compressors only give you one option, but this tool offers three different strategies. Set a quality percentage if you want a quick, predictable result — 80 percent is the sweet spot for most photos. Enter a target size in kilobytes if a form demands a file under, for example, 200 KB, and the tool will automatically adjust the compression to hit that number. Or set a maximum width to downscale very large photos before compressing them, which saves both size and processing time. You can also combine all three for maximum control. Each image is processed one by one with a live preview, so you can see exactly what is happening.
Batch Compress and Download as ZIP
Need to compress many photos at once? Drop them all into the tool in one go and every image is processed in sequence. When everything is ready, click "Download all as ZIP" to receive a single archive containing all your compressed images — no more clicking each one individually. Individual download buttons remain available if you only need a specific file, and you can download the same image or ZIP as many times as you like; the tool automatically renames repeat downloads with a numbered suffix so nothing gets overwritten on your device.
Private, Fast, and Completely Free
Unlike most online compressors, this tool never uploads your images to a server. Everything happens inside your browser using the HTML5 Canvas API and modern image encoders, so your photos stay on your device from start to finish. There is no signup, no watermark, and no daily quota. It works on Android, iPhone, Windows, Mac, and Linux, and you can compress multiple images at once and download them individually or all together as a ZIP. For the smallest files, choose the WebP format — every modern browser supports it. Always keep a copy of your original image just in case you need the full resolution later.