Compress to a file size
Working with an upload limit? Aim for a specific file size in KB.
Simple tools for everyday work
Choose JPG, PNG or WebP files from your device. Set output options, process images and download the results. Image processing happens locally in your browser. Keep your originals and inspect the output before publishing.
Read our practical guideWhat if a form requires 100 KB or 200 KB?
Practical context to help you decide what to change and what to check before using the output.
A file-size limit is measured in bytes; it is not the same as a pixel requirement. Start with the portal’s accepted format, dimensions and any minimum size. Choose the target carefully, keep an original, then let the tool attempt to reduce the exported file toward that limit.
Open the downloaded result to confirm its real size. Check text, signatures, faces and product features before submitting an application. If an extreme limit would make the result unreadable, return to a clearer source or ask the destination for guidance.
Know the limit: A specific byte target cannot be guaranteed for every image without damaging detail; the destination may impose additional rules.