Reduce file size without guessing
Image compression removes or reorganizes image data so files transfer and load faster. The useful setting is the lowest size that still looks clean for the image’s real purpose.
Review the settings and result rather than relying on a single default for every image.
Start with the use case
A small product thumbnail can tolerate more compression than a portfolio image, printable photograph, or detailed screenshot.
Review visual detail
Faces, gradients, text, and sharp edges reveal compression artifacts quickly. Compare the result before replacing an original.
Measure the result
Use the displayed before-and-after sizes to judge whether a quality change produces a meaningful saving.
Compression behavior by format
Photographs and complex color
Lower quality reduces size but can add block artifacts
Transparency and sharp graphics
Photo-heavy PNG files may remain comparatively large
Web photos and graphics
Often balances size and visual quality well
Editing and future exports
Never rely on a compressed copy as the only master file
Quality-check your result
A short review helps prevent blurred text, lost transparency, unexpected dimensions, or an output that is larger than necessary.
Clear processing expectationsThe selected file is processed to create the requested output. Results depend on the source image and chosen settings. Keep important originals and review the site’s privacy policy for handling details.
Begin near the balanced quality setting.
Move the slider gradually and compare the updated size.
Check small text, shadows, and smooth gradients.
Keep the source image when the file is important or irreplaceable.