Compress an Image: Reduce File Size and Compare Quality
Image compression can make a photo easier to upload or share. Choose a supported image, select a quality setting and compare the output with the original before replacing or publishing it.
Compress an image in the browser
- Choose a supported image file from your device.
- Review the preview and original pixel dimensions.
- Set the output dimensions if you need to resize as well as compress.
- Choose a quality level and process the image.
- Compare visual detail and file size, then download the copy that suits the destination.
Quality, dimensions and file size
Lower quality and smaller pixel dimensions usually reduce file size, but can introduce visible artifacts or soften fine details. The best setting depends on the image and where it will appear.
Choose a suitable output format
JPEG is often practical for photographs; PNG is useful when transparency or crisp edges matter. Browser support and the selected export format can affect the result.
Frequently asked questions
Will compression always make the file smaller?
Not always. Source format, image content and selected settings affect the output size. Compare the generated file before using it.
Does this upload my image?
The available image workflow processes the selected file in the browser and starts a download on your device.
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