How to compress image to 50 KB
- Tap Choose a photo and pick the JPG or PNG you need to shrink.
- The target is already set to 50 KB. Tap Compress to 50 KB.
- Check the new size on the photo, then tap Save the file.
How the 50 KB target is hit
The page runs a binary search on JPEG quality — up to eight attempts, stopping when the result is within three percent of 50,000 bytes. Each attempt re-encodes the image on a canvas in your browser, so a typical phone photo settles in under a second.
If the lowest sensible quality still overshoots, the picture is scaled down as well — by however much the overshoot calls for, and at most three times. Reducing pixels is far kinder to a face than crushing quality further, which is why the tool prefers it over producing a blocky 50 KB image.
When 50 KB is not reachable
A dense, detailed photograph — a group shot, a scanned document with fine text — sometimes cannot reach 50 KB while staying readable. The tool does not silently hand you something unusable and it does not refuse either: it returns the smallest version it could produce, states the size plainly, and lets you decide whether to accept it or crop the image first.