How to compress an image to a specific size
- Choose or drop one or more images onto the green mat.
- Enter the maximum size in KB, or tap a preset such as 50 KB.
- Download each image, or press Download all.
Cropmat first lowers JPG quality step by step. If the file is still too big at a readable quality, it also reduces the width and height a little until it fits. The result list shows the old size, the new size and, if needed, the new dimensions.
Why your photos stay private
Most compressors upload your file to a server. Cropmat does the work inside your browser, so the image is never sent anywhere. That makes it safe for ID cards, certificates, signatures and personal photos. You can even switch off your internet after the page loads and it still works.
Which format should I pick?
JPG gives the smallest files for photos and is accepted by almost every form and website. WEBP can be even smaller at the same quality and is great for websites, but some older upload forms do not accept it. PNG files are converted because PNG cannot be compressed to an exact size without losing transparency.
Questions
Is this image compressor free?
Yes. Every tool on Cropmat is free with no sign-up, no watermark and no limit on the number of images.
Will compressing reduce the quality?
A little, but Cropmat always keeps the highest quality that fits your size. For most photos the difference is hard to see at 100 KB and above.
Can I compress many images at once?
Yes. Select several images together and they are all compressed with the same settings. Use Download all to save them.
Does it work on mobile?
Yes. It works in Chrome, Safari and other modern browsers on Android and iPhone.