Why compress to this size?
500 KB keeps plenty of visual detail while still being far lighter than a typical camera photo — a solid general-purpose web target.
Frequently asked questions
How do I compress a photo to 500 KB?
Drop your file into the tool above, make sure the target is set to 500 KB, then click Compress image. The file downloads straight to your device once it's done — nothing is uploaded to get there.
Will this reduce image quality?
Some quality is traded for file size, but PhotoToolKit looks for the highest quality that still fits your target, so the result stays as sharp as your size limit allows.
Is this really free and private?
Yes. There's no account, no ads, and no upload — the image is compressed using your own browser and never leaves your device.
Compressing more than one? Try Bulk Compress