What does image compression do?
Compression reduces the amount of data stored in an image. This can make files faster to upload or share. The amount of quality change depends on the compression settings and the original image.
Good times to compress
- When an upload has a file-size limit.
- When you want faster website loading.
- When you need smaller email attachments.
- When you are storing many images.
Always keep your original image before heavy compression so you can return to the full-quality version later.
FAQ
Does compression always reduce quality?
Not always visibly. The result depends on the image and compression level.
This guide is for general information. Calculator results are estimates based on the values you enter.