Change the size, make the file smaller, convert the format. Several images at once.
Your images are not uploaded.
There is not a single line of networking code on this page (no fetch, no XMLHttpRequest).
Everything happens on your own device, and no image ever leaves it.
Once the page has loaded it keeps working in aeroplane mode. Try it.
Drop images here, or click to choose
JPEG / PNG / WebP / GIF / BMP — several at once is fine
How to set the size
Longest side (px)
Never enlarged beyond the original
Output format
Quality 0.82
Ignored for PNG
Other
The image is redrawn, so Exif disappears either way
Choose an image to start.
Which format and quality to pick (if you are not sure)
For photos, WebP at about 0.8 is usually right. It comes out 20–30% smaller than JPEG and every major browser supports it.
If you are posting somewhere and cannot tell what will open it, JPEG is the safe choice. Use PNG only when you need transparency, or when the image is text or line art and you do not want soft edges. A photo saved as PNG ends up several times larger.
Pushing the quality above 0.9 mostly grows the file without changing what you see. Below 0.6, flat areas start to show blocky mottling.