iPhones shoot HEIC by default — great for storage, useless for upload forms, Windows PCs, and half the web. Drop your HEIC files here and get standard JPGs back in seconds. Conversion happens entirely on your device.
Bonus over ordinary converters: if the form you're filling also has a size limit, set the Max KB and the output will fit it in the same step.
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 iPhone take HEIC photos?
HEIC halves the storage of JPG at the same quality, so Apple made it the default. You can switch in Settings → Camera → Formats → Most Compatible — or just convert here when needed.
Is the photo quality preserved?
Yes — conversion uses a high-quality setting by default. Add a KB limit only if a form requires one.
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.