How the compressor works
The picture keeps its shape. The tool first scales it to a sensible pixel size, then lowers JPG quality only as far as needed to get under your limit. If the limit is very tight, it reduces the pixel size step by step until the file fits, so you always get a result.
Choosing a target
- 100 KB: email signatures, forum avatars and most upload forms.
- 200 KB: document photos and profile pictures where some detail matters.
- 500 KB to 1 MB: photos for websites and listings that should still look sharp on a large screen.
Why smaller files matter
Large pictures slow down websites, bounce from email servers and are refused by upload forms. A modern phone photo is often 3 to 8 MB, far more than most uses need. Compressing it can cut the size by 90% or more with little visible change.
You can still type your own width, height and KB limits in the boxes at any time.
Questions and answers
Does compressing reduce quality?
A little, but usually not enough to notice. The tool always picks the highest quality that fits the limit you set.
Can I compress a PNG?
Yes. PNG, WebP and JPG pictures can all be added. The result is saved as a JPG, which is much smaller for photos.