WhatsApp stores profile photos as 640×640 squares. Upload anything else and the app crops and recompresses it — which is why DPs often look blurrier than the original. Doing the crop yourself at exactly 640×640 keeps control of what's in frame and how sharp it stays.
How it works
- Check the target. This page is preset for the spec above — adjust any number to match your exact form.
- Drop your photo. ExactKB finds the best quality and dimensions that land inside the size window — including padding files up when a form has a minimum size.
- Download. The file fits the requirement on the first try.
FAQ
Why does my DP look blurry?
WhatsApp aggressively recompresses large uploads. A pre-sized 640×640 file under 500 KB needs minimal recompression and stays sharp.
Is my photo uploaded to a server?
No. ExactKB runs entirely in your browser. Your file never leaves your device — this page even works offline.