Resize and compress images to 100 KB or less for government portals, job applications, and school admissions. 100% private in-browser processing.
Guaranteed size compliance in three effortless steps.
Select your ID photo, document, certificate, or image from your device.
The 100 KB limit is automatically pre-configured. You can modify dimensions if specific width/height constraints are needed.
Download the compressed image ready for immediate submission to application portals.
Convert.cool uses an iterative binary search compression algorithm. It automatically calculates the optimal compression ratio and resolution adjustments to guarantee that your exported file meets or beats the 100 KB limit.
Yes, absolutely. Unlike other sites that process your confidential documents on external cloud servers, Convert.cool performs all compression locally inside your web browser. Your private IDs, signatures, and certificates never leave your machine.
Yes. Our intelligent encoder preserves high-frequency edge details and contrast so that signatures, document text, and headshot facial features remain sharp and legible.
Yes. You can select multiple documents or photos at once. Convert.cool will compress each file to satisfy the target size limit simultaneously.