How to compress image on mac
- Open the compressor on your Mac.
- Choose an image from photos, files, or downloads.
- Use quality and resize controls to reduce file size.
- Download the compressed image and use it where needed.
Recommended settings
70% to 85%
1200 to 2000 px
JPG for photos, PNG for screenshots, WebP for modern web use
Mobile camera photos usually benefit from resizing before heavy compression.
Practical explanation
Mac images can be too large for email, forms, school portals, or websites.
Compress downloads, screenshots, and Photos exports without installing a Mac app.
Use compression for smaller byte size, resizing for fewer pixels, and conversion when the current format is not right for the destination. Very small targets can require visible tradeoffs, so compare the preview before downloading.
FAQ
Do I need to install an app on Mac?
No. The compressor works in a browser when the image format is supported.
Can I compress screenshots?
Yes. PNG screenshots can be resized or converted depending on the final use.
Where does the downloaded image go?
It goes to the browser or device download location, which varies by operating system.
Can I choose the final file size?
Use quality and dimensions to get close to a target size. Exact results depend on the image.
Does this work without signup?
Yes. No account is required.