Image Compressor
Privacy note: This tool works entirely in your browser using the Canvas API. Your image is not uploaded to a server, stored or sold. Closing the page removes it from this page.
How to compress an image without ruining it
Start at 80% quality. For a photo that will be viewed on a phone, that is often enough, and the file can drop to a third of its original size or less. If the picture still looks fine, try 70%. Below 60%, text and faces start to look blocky, so stop there for anything important. For an online form that asks for a file under 100 KB or 200 KB, compress, check the new size shown above, and only then lower the quality a little more if you still need to. Do not compress the same JPEG again and again: each round throws away more detail. Always keep your original file, and compress a copy. For a logo or a picture with sharp lines and flat colours, PNG or WebP usually keeps edges cleaner than JPEG, while JPEG is usually best for ordinary photos.
Related guide: How to Compress an Image Without Losing Too Much Quality.
FAQs
Will compression delete my original photo? No. This page never changes the file on your phone or computer. It makes a new, smaller copy for you to download.
Why did a PNG not get much smaller? PNG keeps every pixel exactly, so a photo-style PNG may stay large. Try WebP or JPEG output for photos, and PNG only for logos and graphics with sharp edges.
Is my image uploaded? No. The work happens in your browser. If you close the page, the image is gone from this page.