Which formats can I compress?

JPG, PNG, and WebP are all supported. JPG and WebP get the biggest gains since they support lossy quality levels.

Will compressing a PNG reduce its quality?

No — PNG is always lossless. The quality slider is disabled for PNGs; convert to WebP first for bigger savings.

No hard limit — very large images may just take a few extra seconds to process.

Shrink your image's file size with a live before/after preview.

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1
Upload your image
Drag and drop a JPG, PNG, or WebP file, or click to browse.
2
Choose a quality level
Slide to your preferred quality — see the size drop in real time.
3
Download the result
Compare before/after and download your smaller file.

Processed locally

Your photo never leaves your browser tab.

Full control

Pick exactly the quality-to-size tradeoff you want.

Before/after preview

Drag the slider to compare quality side by side.

Resize photos to exact pixels or percentages.

Crop to the perfect frame with live preview.

Convert JPG to PNG or PNG to JPG, automatically.

Convert JPG or PNG images to lightweight WebP.